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As we look back on 2017, increased demand contributed to technology advancements and higher productivity across a range of industries including oil and gas, power generation, life science, construction, agriculture, and manufacturing. Design engineers and MRO managers placed a priority on the proper design, assembly and installation of fluid transfer components to ensure optimal performance of equipment and machinery. Here, we've compiled a list of the most read fluid and gas handling technology blogs for 2017 featuring tips, methods and solutions to optimize the function and reliability of hydraulic systems for maximum productivity and profitability. In these blogs you'll learn:
Many hose installers are not trained on how to correctly measure and specify hose length. As a result, a replacement hose may end up being either a little shorter or a little longer than the original part. When inches matter, the confusion about properly measuring hose length can result in delays and extra expense. In this blog, you'll learn how to correctly measure hose length.
Hydraulic hose is more complicated than it seems. There are many factors that go into designing, manufacturing, and testing high-quality hydraulic hoses. Here are some fast facts that can make a difference for you and your productivity.
In this blog, you'll learn the differences between skive and no-skive hoses and the advantages of each.
Sizing is the most basic and essential factor in hydraulic hose selection. Here, we break down the inner diameter, dash size and nomogram for a hydraulic hose to ensure proper sizing in your application.
The process for testing and evaluating hydraulic hose is defined by SAE and ISO Standards, which contain various test procedures including the change in corrosion resistance, hose construction integrity, burst, and impulse test. Read about the specifics of these tests.
How do you determine the necessary hydraulic hose fitting when your application involves connecting two bent hoses? When your fittings are at an angle, understanding their orientation is critical. This blog presents the two methods used to simply identify the angle of a hose end.
Hose manufacturers each use a diverse range of materials that can result in a variety of hose styles. Hoses from various manufacturers may have similar dimensions and constructions, but different rubber compounds and reinforcement materials make a huge difference when it comes to hose failures and every manufacturer's "recipe" is unique. Read this blog to get a look behind the scenes of hose manufacturing.
OEMs and fitting manufacturers are constantly finding new ways to stump us with different threads and new ways to seal them. When making hydraulic fitting connection choices today, there are several features to research and understand for your application. We highlight connections, attachment styles and the 5 most important factors you need to consider for hydraulic fittings in this blog.
Employees often overlook hoses during routine maintenance checks for material handling equipment, which can lead to machine downtime and lost productivity. If a hose fails, it creates a potentially hazardous situation for anyone operating the unit or in close proximity. Read these 8 simple tips to properly maintain your mast hose.
If the excitement of the construction industry takes your breath away, congratulations! You’re in the right business. But construction workers may have shortness of breath for a far more serious reason—exposure to Respirable Crystalline Silica (RCS)—and that’s a grave problem that must be addressed immediately. Learn about it in this blog.
Watch this video to learn more about our fluid and gas handling capabilities.
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Condensate pots play a key role in maximising the accuracy of differential pressure flow measurement on steam or vapour applications. When installed correctly, these simple devices can significantly improve flow measurement accuracy in differential pressure measurement systems by providing an interface between the vapour and liquid phases.
Condensate pots also prevent flashing of liquid in the impulse line, which can occur if there is a sudden change in the temperature of the steam.
As a result, condensate pots are widely used in applications such as refineries, power plants, chemical and petrochemical, steel plants and other process industries as they provide an interface between the vapour phase and the condensed phase in the impulse lines. They also facilitate the minimisation of gauge line error caused by pressure differences in pairs of impulse lines.
Parker’s condensate pots are suitable for use either on vertical or horizontal lines, between the primary (Flow Meter) and the secondary (transmitter/gauge) to act as a barrier to the line fluid, allowing direct sensing of the flow conditions.
The correct installation of condensate pots, however is really important to ensure long service life and maximum efficiency.
Make sure you evaluate the number of connections required on the condensate pot before ordering (for example, inlets, outlets, fill port, drain port, gas vent port.) This ensures that the Condensate pot meets your specific application requirements.
Carefully define the condensate pot volume in litres, system pressure and temperature requirements. This is important as the size of the pot needs to relate to volume of steam passing through the steam pipeline.
It may be necessary to trace heat and insulate all impulse lines. This ensures that the vapour phase is maintained in the tube lines between the pipeline and the condensate pot. It may also be required to prevent freezing in the liquid lines between the condensate pot and the transmitter.
Consider adding an anti-freeze media, such a glycol, to the water lines. This may be essential in climates where below freezing temperatures are reached.
Keep vapour impulse lines as short as practicably possible. This ensures that the steam can remain in this state and requires minimal or no heating.
Ensure both condensate pots are mounted at the same level, minimising possible error that could arise due to unequal head of fluid in the connecting pressure lines. This should take into account both vertical and horizontal steam pipelines. The higher connection point should be the reference.
The differential pressure measuring device (DP) should be mounted below both the condensate pots and the steam pipe line.
It is recommended that both impulse lines from the condensate pot to the DP include the facility for ‘blow down’. Blowing down these lines periodically prevents the collection of debris, which could impact on measurement accuracy.
Ensure both the high pressure (HP) and low pressure (LP) impulse lines are the same length, which should eliminate pressure head errors. The theory of operation for condensate pots is that between the process taping and the pot is steam vapour. Between the pot and the differential pressure transmitter is water (liquid) thus eliminating any measurement errors due a liquid / vapour mix at the measurement device.
It is advisable to select condensate pots as part of a complete Parker instrumentation solution. We can supply all associated valves, manifolds, tubing and fittings alongside condensate pots, ensuring that all components work together and providing added reassurance about accuracy and safety. This also includes providing tubeline heating and insulation to ensure performance is maximised.
Parker condensate pot pressure ratings are for temperatures up to 100°C. We can also supply condensate pots to meet other pressures and temperatures. The most commonly used materials to manufacture condensate pots are steel, 316, 304, 6MO stainless steel and monel.”
For more details visit our website or view our condensate pot brochure.
Article contributed by Graham Johnson, Small Bore Product Marketing Manager - EMEA, Instrumentation Products Division Europe.
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Condensate Pot Brochure
Condition monitoring has a key role to play in every maintenance programme and can be a valuable tool for optimising safety standards, maximising operational efficiency, and enhancing profitability.
Despite proven gains resulting from employing effective condition monitoring and reliability-centered maintenance practices, all too often its implementation is haphazard rather than strategic, further stretching already scarce resources and having little positive effect on productivity – or the bottom line.
When we consider the lifecycle of an asset – from the design, installation, operation and decommissioning – our expectations are that it will perform its required function efficiently for as long as it’s required. Indeed in a laboratory setting, this isn’t an unreasonable assumption. However, in the less forgiving marine environment, with large variations in weather, crew, and aptitude, it is vital to take into consideration how these variables can affect the operational life of critical assets, and proactively monitor these systems to ensure that operations are not compromised by unexpected breakdowns.
Condition monitoring has one goal: to ensure that an asset can effectively function to meet the demands of the operation, whenever it’s required. To do that, the necessary people, processes, and resources must be available to maintain the asset in a fit-for-service condition. This can be done reliably, safely and cost-effectively by employing a combination of condition monitoring tools, both on and offline. All that’s required is a consistent, top-to-bottom appreciation of the compound benefits that accrue to organisations that prioritise asset integrity.
A number of innovations have influenced condition monitoring in recent years that today allow engineers to enjoy the benefits of a combination of online, onsite and laboratory testing.
Digitalisation is fundamentally changing the way marine maintenance services are conducted. Advanced data analysis is helping companies optimise the efficiency of their operations and improve the performance of their assets. One of the most prominent advocates in this area is the original equipment manufacturer, Wärtsilä.
It employs asset performance optimisation concepts extensively and uses interactive and real-time data to help predict maintenance needs well in advance, thus enabling better planning and support services. A number of innovations have influenced condition monitoring in recent years that today allow engineers to enjoy the benefits of a combination of online, onsite and laboratory testing. Through more detailed but potentially delayed sample results from a laboratory, supplemented by the real-time information delivered by onsite testing, operators have the most accurate picture of the condition of the systems and equipment onboard.
“Condition monitoring has one goal: to ensure that an asset can effectively function to meet the demands of the operation”
The skills shortage and difficulty finding fully-trained personnel in the marine industry has been well documented over recent years, which is why condition monitoring experts have continued to develop technology that is simple to use and doesn’t require extensive training or re-education, whilst still providing accurate and detailed information. The cylinder liner, for example, is a crucial part of a ship’s engine.
Monitoring wear not only extends operational life but also prevents unexpected and costly repair bills and unscheduled downtime that ship owners can ill afford, with the average cost for a replacement liner at over $150,000. Global carrier Matson has installed Parker Kittiwake’s LinerSCAN, an online sensor which instantly reports changes in the cylinder caused by abrasive wear, onto several of its vessels as part of a range of condition monitoring tools. Payback proved immediate, as on the first voyage after installation, the LinerSCAN system indicated increased wear on the cylinder liners. Upon investigation, Matson detected damaging levels of cat fines in the system on one of its vessels, identified the cause of the issue and addressed the problem before the damage occurred.
Tools such as online sensors and onboard test kits can empower engineers to make fast and informed decisions with confidence. By monitoring wear levels in real time through online sensors such as LinerSCAN, engineers are alerted to escalating cylinder liner wear and are able to react quickly to changes, enabling preventative maintenance during the ship’s passage to the next port and ensuring against expensive downtime.
Today’s oil analysis follows a new triangular paradigm. Real-time, online oil analysis via sensors is the most straightforward and efficient tools for monitoring critical machinery onboard vessels in remote locations.
Coupled with effective portable onboard test kits, many existing and potential problems can be detected and addressed within minutes rather than days. This is still fundamentally supported by offsite, laboratory analysis to provide more detailed analysis, plug information gaps and validate decisions. The advent of slow steaming brought with it the challenge of cold corrosion, due to optimum engine operating temperatures not being attained. Cold corrosion is when sulphuric acid forms on the engine cylinder liner walls and corrodes the liner surface. The Parker Kittiwake Cold Corrosion Test Kit (CCTK) is an onboard tool that gives a clear indication of whether there is a serious problem without the time delay and cost incurred with sending samples for laboratory analysis.
“Kittiwake’s condition monitoring equipment provides information rather than subjective data that can be acted upon immediately, preventing premature wear and subsequent damage”
When used alongside ferro-magnetic analysers, such as the new Kittiwake Ferrous Wear Meter (FWM), operators can identify levels of both abrasive iron and corrosive iron compounds in minutes. It is through employing a combination of online and offline tools that encompass a comprehensive range of processes within the system that operators can best arm themselves with the information they need to manage maintenance, prevent damage and maximise uptime. Kittiwake’s condition monitoring equipment provides information rather than subjective data that can be acted upon immediately, preventing premature wear and subsequent damage. Condition monitoring onboard is a maintenance tool rather than a scientific research tool. Downtime costs money and impacts profitability, which must be steadfastly avoided, especially in today’s financial climate. So with the spectre of downtime ever present, condition monitoring systems and oil analysis programmes are the first line of defence for diagnosing problems with critical plant machinery and equipment.
The impact of successful troubleshooting using a combination of the state-of-the-art diagnostic equipment available can equate to millions of dollars in savings across a fleet. Critical asset failure takes a vessel out of service immediately, affecting profitability, reputation viability as a line operator and invites downstream complications that interfere with successful strategic planning.
The benefits of prevention are often overlooked and sacrificed.
“For ship owners, uptime is the most crucial factor affecting quality and profitability.”
Magnus Miemois, Director of Field Services at Wärtsilä
Even though it might not be instinctual, the present downturn presents a valuable opportunity to revisit the existing asset integrity and reliability processes. Shortcutting safety and performance could become apparent in the future with incidents and accidents costing more than the required investment for assurance.
For many, this will be a step-change policy - investing in onboard condition monitoring and embracing 21st-century marine engineering rather than relying on intuition or the strict period-based maintenance of old.
Article contributed by Larry Rumbol, condition monitoring market development manager (marine), Engine Mobile Hydraulic and Fuel Filtration Division, United Kingdom. Originally published in Marine Trader
Additional articles related to condition monitoring:
Optimising Feed Rate in the Fight Against Cold Corrosion
Fuel Switching: Monitoring to Prevent Damage
Bunker Quality: Why Changes to ISO 8217 Increase the Need for Condition Monitoring
Reduce Failure of Hydraulic Systems with Preventive Maintenance
Reliability Centered Maintenance Reduces Costly Downtime in Oil & Gas Applications
2017 brought about innovative new technologies that laid the foundation for the latest hydraulic systems and applications designed for construction, agriculture, mining, power generation and related markets. From smart user interfaces to load sensing valve technology to hybrid actuation systems for renewable energy applications and more, the solutions revealed in these blogs have customers documenting productivity increases, energy savings and maximized operational efficiency - both at the plant and on the job site. Learn about the key technology trends that shaped the most read hydraulics blogs in 2017.
From optimizing peak performance to minimizing unplanned downtime, the products and systems Parker showcased at the International Fluid Power Expo (IFPE) 2017 are designed specifically to help customers increase their productivity and profitability. Here is a look at some of the innovative new technologies.
The manufacturing industry is currently facing increasing pressure to reform and innovate to remain viable. On the consumer side, the Internet of Things (IoT) has made smart devices available for all, and new changes and challenges of digitalisation are generating business development possibilities for industries as well. Smart IoT devices enable an industrial internet that includes analytics and user action analysis. These improve efficiency and offer new services to customers. Parker has been actively building a new presence in industrial internet platforms and ecosystems by developing a software platform for advanced and flexible user interface design.
Modern industrial machinery is creating ever-increasing demands on hydraulics to provide more efficient and quieter solutions with a smaller footprint, while maintaining the benefits traditionally associated with hydraulic systems, i.e., high power density, precise control and enduring performance. But historically, these benefits have come with the high cost of inefficient energy allocation, heat generation and noise. The variety of discreet components constituting each hydraulic system has complicated the challenge.
Variable speed pump drives save up to 70 percent energy compared to conventional drive solutions. But many are still hesitant due to their greater complexity. For you, Parker has developed a new, innovative variation of its Drive Controlled Pump - the combination of an optimized axial piston pump with two displacement volumes and a very compact synchronous servo motor offers decisive advantages over common variable speed pump systems.
Rising temperatures - which lead to water evaporation and loss of coolants in critical wind turbine cooling systems – may cause 1.5 MW wind turbines to overheat. Fortunately, there's a solution to help keep your wind turbines running efficiently and in good working order.
Actuation systems must be efficient, precise, and durable enough to withstand harsh power generation environments. Parker Hannifin has developed a hybrid actuation system (HAS) that is ideal for renewable energy actuation applications, such as those used with solar panels, wind turbines, and hydroelectric dams.
Watch the video and learn more about our Hydraulics technologies and key markets:
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In 2017, many changes impacted the HVACR, HVAC climate control industry. New technologies emerged that not only changed the way we do business – most for the better! But also brought a shift in the way we do our jobs, our way of thinking. Flame-free refrigerant fittings? Changes in refrigerant choices for retrofits? Troubleshooting a refrigeration system in the field? The smartest technicians understand the importance of not only staying informed but having a go-to resource for reference while on the job. Our Climate Control engineers team are dedicated to bringing you the knowledge you need when you need it through this blog; so you can do your job smarter, more efficiently, more profitably.
Answers to your questions and solutions to your challenges can be found in the top 5 most read blogs in 2017 below which addressed -
As HVACR technicians, you need some ideas in your back pocket for basic troubleshooting in a refrigeration system. How about a simple chart that helps you diagnose a system with 3 data points for starters? Using this chart is simple and can greatly speed up the troubleshooting of a system while in the field.
A common problem facing refrigeration and air conditioning service technicians and contractors is superheat hunting by thermostatic expansion valves (TEVs). Here is a better understanding of a commonly overlooked cause of superheat hunting and how the problem might be corrected.
Refrigerant choices for refrigeration systems are undergoing significant change, including choices for retrofits and new systems. This article is Part 1 of a 3 part series addressing such retrofits and deals with the basics of refrigerant blends and temperature glide.
The thermostatic expansion valve (TEV) provides an excellent solution to regulating refrigerant flow into a direct expansion type evaporator. The TEV controls the flow of liquid refrigerant entering the direct expansion (DX) evaporator by maintaining a constant superheat of the refrigerant vapor at the outlet of the evaporator. To understand the principles of TEV operation, a review of its major components is necessary.
Six questions and answers that will help you learn the key points of what you need to know about flooded head pressure control.
Watch the video and learn more about our Climate Control technologies:
Aircraft lightning strikes occur more frequently than you might think. It’s estimated that on average, commercial aircraft lightning strikes occur every 1,000 hours of flight time or approximately once per year.
When a strike happens, lightning attaches itself to an extremity, such as the nose, leading edge of the wing, or wing-tip, travels along the exterior of the airplane, exits at another aircraft extremity, and continues on to hit the ground.
Up to 1 million volts can be delivered in a single lightning strike. The damage inflicted to the aircraft can vary depending on the duration of the lightning strike, the amount of lightning energy dissipated by the aircraft, and the lightning attachment and exit locations on the aircraft.
Today’s aircraft incorporate state-of-the-art composite materials, specialized computer systems, and components that are lighter in weight, and offer better reliability and longevity, but can also make them more susceptible to damage by lightning. These technological advances are prompting regular updates to strict lightning safety regulations, underscoring the priority placed on lightning protection equipment.
Aircraft manufacturers design and continually test their airplanes for lightning strike protection to keep passengers safe and protect sensitive equipment from damage.
A broad array of components and systems designed to withstand, direct, and dissipate the powerful discharge of a lightning strike are required for lightning protection. This equipment must be tested and verified by the manufacturers to meet the stringent lightning protection regulations.
Key lightning protection tests that should be conducted by manufacturers include:
Flame arrestor technology must be addressed carefully as well. Standards to be met include SFAR88 requirements with flame arrestor technology. Other flame arrestor tests include:
Parker Aerospace has recently introduced the unique-to-market, lightweight, high-pressure isolator (highly resistive union) that protects fuel system components from carrying the high current load of direct lightning strikes, yet allows safe relaxation of static charge developed through the refueling process.
When selecting lightning protection equipment and components, aircraft design engineers should consider partnering with a supplier that offers:
Parker Aerospace has been patenting, testing and manufacturing a comprehensive array of lightning-safe components and equipment for more than 70 years. Thousands of active and certified products have been designed to meet, and in many cases, exceed the stringent lightning safety requirements of the aircraft industry.
Parker’s technology is grounded on decades of proven on-wing time and durability through more than 100 million flight hours on most products. Parker’s engineered solutions include:
Parker Aerospace’s lightning test laboratory offers unique and specialized capabilities that ensure our products provide the ultimate lightning protection, certified to the most stringent commercial and military regulations for lightning, fire, and flammability. Engineers are active members of the SAE A-2 Lightning Safety Committee.
Now, watch this video to learn about Parker's extensive on-site testing capabilities for lightning and fire:
To learn more about Parker Aerospace products, download the product brochure or visit our website
This blog was contributed by the Glen Kukla, engineering site leader, Parker Fluid Systems Division.
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With its high power density and flexible mounting capabilities, permanent magnet direct drive servo motors like the Parker PM-DD series have a proven track record in many manufacturing applications. Let's take a look at five successes spanning various industries.
As the world's communications infrastructure continues to grow and evolve, the demand for fiber optic cable has been increasing. With Parker distributor Cross Automation in Charlotte NC, we were able to provide PM-DD motors for a vertical lathe, used to dispense glass for fiber optic wiring. The combination of smooth low-speed operation, compactness, and the ability to mount directly to the rotating shaft made the PM-DD a winner over standard servo motors.
Machine tools demand accuracy, and in the second case study, the task at hand was to repeatedly index a table that was three feet in diameter. With displacement occurring 1.5 feet (457 mm) away from the motor centerline, its high resolution (20 bit) absolute encoder was critical to the application. Thanks to the PM-DD's high load carry bearings, (1500 N in this case) where previously a conventional servo motor and worm gear solution was used, the PM-DD proved to do the job while eliminating the worm gear. The drive train was simplified and ongoing maintenance associated with the mechanical gearing was eliminated. This solution was sold by Faber Associates, Parker distributor based in Clifton NJ.
Automotive assembly is a rigorous application with hundreds of interdependent operations, all of which must function reliably, at the risk of costly downtime. A rotary table was used in the operation of adjusting vehicle headlights. Simplicity and high positioning resolution were the main factors leading to the adoption of the PM-DD in an application solved by Parker distributor Reco-Wesco from Indianapolis. Being able to mount the motor directly to the table eliminated the need for multiple mechanical components that would have required maintenance and been a potential failure mode.
Automotive industry testing applications often duplicate real-life scenarios that the finished vehicles will be exposed to, but must take into account the worst-case situations. In this case, the PM-DD motor was used for an electronics test bench. Part of a multi-axis assembly, the test bench would simulate the rough vehicle road conditions, including a rollover, that the electronics might be subjected to. PM-DD was preferred over a standard servo motor due to its smooth, slow speed, operation, good bearing support and high torque. This solution was sold by Parker distributor RSA of Fond du Lac WI.
The fifth and final application was in the life sciences field. A PM-DD motor was used for an indexing table that carried five stations to support the assembly of medical devices. The first station was to load the part, second applied adhesive, third was for UV curing of the adhesive, fourth was inspection and fifth was where the part was unloaded. In this case, the PM-DD replaced a pneumatic indexing table. Key to its success was a smooth start and stop operation versus the previous pneumatic solution. Also, the PM-DD with Parker P-Series Drive allowed for a variety of indexing locations to be programmed providing more flexibility than a more traditional rotary indexing table. This solution was provided by Automation Incorporated, a Parker distributor out of Minneapolis MN.
Learn more about the PM-DD by visiting our Precision Direct Drive Rotary Servo Motor Series Product webpage to buy or download a Parker P series
Direct Drive Rotary Motors catalog.
Article contributed by Jeff Nazzaro, gearhead and motor product manager, Electromechanical & Drives Division, Parker Hannifin Corporation.
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In a manufacturing facility, it is essential that equipment runs at optimum performance, not only to maintain production but also ensure staff safety and product quality. In many cases, when equipment fails, it is due to the fact that the correct service intervals have not been met and/or replacement parts installed are not in line with genuine original manufacturer's specification.
By employing a scheduled service plan, approved by the original equipment manufacturer, maintenance and operation managers can rest assured that equipment and systems run smoothly. This blog discusses the benefits of implementing a scheduled maintenance plan as well as the importance of choosing the right equipment to ensure uninterrupted production.
Compressed air treatment and industrial gas equipment are vital elements in production machinery operation. Investing in the right equipment and properly maintaining it are critical to uninterrupted production. Some factors to consider when selecting compressed air treatment and industrial gas generation systems include:
Parker’s Gas Separation and Filtration Division EMEA (GSFE) compressed air treatment and industrial gas products, for example, are designed to maximize uptime in the most effective and energy-efficient way. Parker's compressed air treatment products are Third Party validated to deliver 100% compressed air quality and high efficiency. Parker's industrial nitrogen generation systems feature advanced energy-saving technology for reduced energy consumption.
Parker GSFE's confidence in its products has led to the introduction of an industry leading 5 year extended warranty across its industrial range of products — in addition to the standard one year guarantee (some exclusions apply but these are clearly defined in the terms of the warranty which is available on request). This unique warranty combined with a maintenance plan provides manufacturers with the peace of mind that equipment will operate reliably and efficiently — allowing them to concentrate on what really matters.
With a maintenance plan in place, businesses can easily forecast their equipment upkeep costs and, with Parker’s extended warranty, be sure that they will be entitled to replacement parts free of charge without any complicated process or tiresome insurance claims. What’s more, the warranty itself is free, by simply registering their new products within 180 days of invoicing and signing up to an approved suppliers service plan, owners of Parker GSFE equipment can be assured of a lifetime of efficient operation.
All Parker approved service technicians are continually trained to the highest standards and will always guarantee that genuine Parker spares and consumables are used. Also, with the additional benefit of being able to call upon their expert advice and knowledge of industry standards, you can be assured that your process is working to its full potential.
Once the product is installed and the service plan is agreed, all that is required is the minimal input of some important information via the warranty portal. To make things as simple as possible, this information can be provided by either the product owner or the Parker partner who will carry out the scheduled service. Once registered, simply continue with the day to day operations, safe in the knowledge that your process is assured.
For more information please download our extended warranty brochure, or contact your approved distributor or local Parker sales office.
This article was contributed by David Sykes, compressed air and gas treatment technology blog team member, Parker Gas Separation and Filtration EMEA
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2017 saw economic growth accelerate and the indicators suggest that trend will continue. This puts productivity initiatives high on the list of manufacturers, keen on taking full advantage of favorable conditions. Parker’s filtration technology blogs featured productivity-enhancing technologies across a broad range of industries, such as industrial manufacturing, food and beverage, oil and gas, transportation, and life science. Our team of experts is dedicated to sharing our knowledge to help our customers solve their application challenges and do their jobs better. Looking to streamline your bioprocess with automation? Want to understand and realize the benefits of a food grade compliant nitrogen supply? We’ve got you covered. Answers to your questions and solutions to your challenges can be found in the application articles and technical posts featured below in our list of top filtration blog posts for 2017.
On offshore oil and gas platforms and vessels, a supply of fresh water is essential, not only for drinking but also to keep critical machinery and equipment operational. Rig managers, water quality managers and design engineers face several challenges when it comes to finding the right desalination solution for generating potable and ultra-pure water. Read what to consider before selecting a system.
Adding carbon dioxide to a beverage carries the risk of product contamination with potentially expensive consequences including off-flavors and odors, spoilage, product recalls and damaged reputation. Foul taste, odors and off-appearance will change the way the consumers view the product and may alter their decision to buy more of it — directly impacting the manufacturer’s bottom line. Read the steps food and beverage manufacturers should take to protect the quality of the carbon dioxide and ensure consumers consistently experience a high-quality, desirable product.
This blog examines the three traditional gas supply methods — liquid bulk, high-pressure gas cylinders and on-site gas generation — and reasons why plant managers should consider using an on-site nitrogen generator to maximize their productivity.
Read how the proper design and optimization of filtration systems will directly impact the efficient and reliable function and operational costs of downstream oil and gas processes: amine sweetening and glycol dehydration, hydrocracking, hydrotreating, and final product filtration.
Consumers’ expectations for high quality, healthy and conveniently accessible food products result in an ever-increasing demand on producers and packers. With growing public knowledge of the issues surrounding the use of chemicals and preservatives in food production, suppliers must seek alternative methods for food preservation. Learn why food grade compliant nitrogen offers a suitable solution.
The use of automation in running complex single-use processes has many benefits for engineering managers, such as improving process control and consistency, increasing speed, and reducing human error deviations. It also frees up time for highly skilled scientists to carry out more value-added activities, such as research and development. Read more benefits in this blog.
Many applications that involve nitrogen gas in the production process require varied volumes of gas to be delivered during peak and off-peak operation. Discover how a facility can realize substantial energy savings at off-peak times, maximizing sustainability and increasing performance and profitability with on-site gas generation vs. bulk liquid vessels and cylinder packs.
When sizing chillers for an application, it is necessary to ensure the unit adequately sized to handle maximum process loads in worst-case site conditions. Read about important factors that must be considered when sizing a chiller, including maximum ambient temperature, outlet water temperature, glycol concentration and elevation above sea level.
Single-use technology plays an integral part in nearly all bio-production processes, yet several challenges remain — challenges which are serious enough to delay or even stop the use of single-use technology. Here is Parker's summary of the five most critical challenges in the implementation of single-use technology.
Laboratories around the world require a reliable and consistent mixture of quality gases for a range of applications. In an environment where safety is paramount, gas generators provide a safe solution for using gases in the laboratory. Read more about how gas generators ensure a safe working environment.
Watch this video for more about Parker's Filtration technologies and capabilities:
Identifying potential issues before they escalate into fully developed problems offers obvious benefits in all industries, from manufacturing to sea-based commercial shipping. Preventive measures, like planned diagnostic programs and condition monitoring, help maintenance engineers identify areas of concern before they result in unplanned downtime, costly maintenance, hazardous conditions and loss of revenue. As technology has advanced, the ability to apply specialty devices and use data to understand the granular details of an operation’s systems and equipment has become invaluable. Systems can be scrutinized for areas of concern not visible to an operator and fixes can be applied to avoid catastrophic failures. In all, these measures can reduce maintenance expense, maximize productivity and profits, and assure safe working conditions.
This blog presents a case study detailing how Gram Car Carriers employed an effective online condition monitoring system based on Parker Acoustic Emission (AE) technology to identify the cause of premature bearing failure and prevent future problems.
Gram Car Carriers is a specialized supplier of vessels to the world’s major sea-based vehicle transportation companies. Their unique fleet, includes four Pure Car Carrier Roll-On/Roll-Off vessels. Each of these vessels has a Gross Tonnage of over 20,000 tons and the ability to carry 2000 vehicles. These vessels are each powered by a pair of 6-cylinder medium speed diesel engines. The propulsion shaft is driven through a RENK gearbox, which also drives the main ship’s alternator via a PTO shaft. The vessels were built in 2009 and 2010.
Three of the vessels suffered alternator-specific bearing failures in the first year of operation. While the vessels have a pair of auxiliary generators, these are not able to supply the power required to operate the bow thruster. This lack of power resulted in the cost of hiring additional tugs to maneuver the vessels in port. This was a serious consequence of the bearing failures. The total costs of the additional tugs ran to six figures. The bearings were replaced and ran without incident until another failure in 2015.
At this point, Gram Car Carriers decided to install on-line condition monitoring on the alternator bearings and the gearbox PTO shaft output bearings. The Parker Sigma Bearing Monitor was fitted on the four vessels. This product is based on Parker's Acoustic Emission (AE) technology, and was chosen over more traditional vibration monitoring as it provides a cost-effective solution and is simple to use. It involves the detection of high-frequency structure-borne sound generated by friction and impacts generated by operating machinery, as its condition deteriorates. It was immediately apparent that there was a problem with the alternator bearings on one of the vessels; the “City of Oslo”: The bearings were found to be seriously damaged.The system was used to allow the operator to manage the replacement of the bearings so that there was no impact on the ship’s schedule.
The Sigma Bearing Monitor continued to indicate that there was a problem with the alternator, despite the fact that new bearings had been fitted. This indicated that the mechanism, which had caused the problem, was still present and, left un-checked, would begin to damage the new bearings. The diagnostic output showed that there was a single impact with every revolution of the shaft — a characteristic of misalignment / out of balance.
A specialist maintenance company was contracted to carry out the remedial work and confirmed that the system was out of balance and misaligned. After adjustments were made, the readings from the Sigma Bearing Monitor indicated that the bearings were running smoothly. The bearings have continued to run without issue for the last 12 months.
The Sigma Bearing Monitor allowed the operators to:
Identify that there was a serious problem with the alternator bearings.
Track any further degradation and manage the timing of the bearing replacement.
Detect that the installation of new bearings had not solved the problem.
Diagnose that the underlying problem was due to misalignment and out of balance.
Confirm that realignment and balancing had cured the problem.
Confirm the smooth running of these bearings over the next 12 months.
The Sigma Bearing Monitor is a unique, highly sensitive hand-held instrument, providing maintenance engineers with an easy-to-operate, simple to use, and quick method of analyzing bearing condition and lubrication state. The monitor can be used to detect when the bearings are beginning to run in a distressed state, long before any serious damage occurs. A slow increase in the “Distress” reading over several months usually indicates that the bearing should be re-greased. Re-greasing the bearing produced an immediate drop in “Distress” readings to normal levels. A temporary increase in “Distress” usually indicates that the vessel’s operating conditions are putting the alternator bearings under stress.
Chief engineers at Gram Car Carriers are using the systems to identify undesirable operating conditions and avoid them where possible. To date they have identified:
They have also established that heavy sea conditions are not responsible for damage to the alternator bearings.
This application illustrates how the Sigma Bearing Monitor can be used to detect damaged bearings and manage the remedial work required. The system is now being used to detect situations that will lead to bearing damage and potential mechanical failure. Early detection will minimise the time that the bearings spend in a distressed state, prolonging their life.
Acoustic emission technology can be applied to a wide range of bearings and gears across all industries. Parker Hannifin offers a range of products including both portable instruments and permanently installed systems. The commercial motivation to employ condition monitoring depends on the application. Key drivers include:
To learn more Parker's condition monitoring solutions, please visit our website or contact firstname.lastname@example.org
This blog was contributed by Neil Randall, technical specialist, Parker Hydraulic Filtration Division EMEA.
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The O-Ring & Engineered Seals Division is now offering a rapid prototype program for solid and hollow spliced O-rings that will reduce lead times on small orders to improve sample and trial testing on enclosure projects. The program provides spliced rings available in a variety of cross sections and can be purchased in either solid or hollow profiles.
In the event that enclosure tolerances are large or the available compressive force is low, Parker engineers can design a custom hollow seal to help absorb large tolerances while providing very low compressive force compared to solid cord. Spliced rings with large inside diameters up to 95” are available in silicone and nitrile materials. Rings with inside diameters up to 57” are available in fluorocarbon. Cross sections of .070”, .103”, .139”, .210” .250” are regularly stocked and available to splice to the ring ID needed. The chart below outlines the current compounds, cross sections, and diameters available under the program.
A short, two-week delivery time provides accelerated design validation prior to production launch. On large projects where customers require confirmation that the ring ID will properly fit the application and provide the needed compression force, the Rapid Prototype Program can reduce the overall lead time – increasing the chance of success. To learn more about this new program, contact your local Parker distributor.
Parker utilizes a hot vulcanizing bonding process to splice our rings. Our bonding material is the same base polymer as the extrusion, giving it equal chemical resistance and physical properties of the seal.
Precision extruded and spliced products offer cost effective sealing solutions for many applications. These include low closure force seals, large diameter seals that cannot be molded, or requirements for hollow O-rings, non-standard O-rings and other extruded profiles with an inside diameter larger than 2.500 inches.
Spliced and fabricated seals offer the designer a tremendous amount of flexibility for challenging applications. Products can be vulcanized from a variety of solid and hollow cross-sections. Due to the low tooling cost and flexibility of the extrusion process, customer profiles can easily be designed to specific application needs.
Extruded and spliced products are available in the following material types: silicone, nitrile (Buna-N), EPDM/EPR, HNBR, fluorosilicone, fluorocarbon, and FFKM. Specialty approved materials are also available that are certified to UL (UL 94 V-0 and UL 157), USP Class VI and FDA white listed materials.
Precision extrusion tolerances
Exclusive use of quality sealing grade materials
Superior hot vulcanization capability (High bond integrity)
Low closure force sealing solutions
Ease of adjusting closure force by adjustment of cross section design, cross section I.D., or durometer
Hollow cross sections are excellent replacements for foam or sponge gaskets, offering superior compression set resistance.
Interference -fit designs available for ease of installation without use of adhesive
Pressure Sensitive Adhesive (PSA) backed extrusions available for flat panel sealing applications.
Low cost option for static face or radial seal O-rings over 2.500" I.D.
Can be used in standard or non-standard grooves
For more information on the benefits of hollow and solid spliced seals, visit Parker's website and chat with an engineer today!
This article was contributed by Wesley Burcham, market manager, Parker O-Ring & Engineered Seals Division.
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Picture the scene: Unprecedented rainfall and poor flood defences causes flooding to a biopharmaceutical facility, damaging equipment, making large areas of a site unsafe and inaccessible, and preventing staff from even making it into work. Product batches can be lost and new production delayed while the facility gets up and running again, with the resulting impact on the supply of essential drugs.
This is a very real problem. In the summer of 2017, for instance, a major cold packaging and distribution facility for the pharma industry was hit by a power cut due to a severe storm in Pennsylvania, resulting in products being quarantined. In 2016, a biotech firm in New Jersey suffered damage to its manufacturing capability when a malfunctioning sprinkler system caused the site’s clean room to be covered in stagnant water and silt.
There are numerous scenarios and incidents that can unexpectedly occur and have a serious impact on a biopharmaceutical company’s ability to operate, such as those detailed above, as well as:
This blog presents the steps involved in building a business recovery plan and key factors to consider.
Watch our webinar on demand: Protect the Process; Protect the Patient
As vendors and end-user supply chains become ever more closely integrated, it’s therefore vital that these risks are understood and that organisations have plans in place to mitigate them. Business recovery planning – or disaster recovery planning – is a key part of that process. In every scenario, it’s prudent to assume that a catastrophic incident will occur at the worst possible time – for instance when a fire breaks out during a shift swap over when there are twice as many people on a site and in different stages of logging in and logging out. An effective business continuity plan should have a procedure to assess, review, relocate (if necessary) and recover to ensure that downtime is minimized.
The first step in building a robust business continuity plan is to have a policy in place to look at the risks and create a mitigation strategy. This should include clear objectives and defined roles and responsibilities for staff.
When looking at disaster scenarios, organisations should consider the effect on a facility should the worst case scenario occur, as well as the impact on the workforce, such as their access to the site. They should also consider appropriate evacuation procedures for each scenario, and support procedures for staff — taking into account funds, housing and transport.
Equipment which is critical to your operations should be identified and a plan should be put in place to repair, replace and/or rebuild the equipment, based on the characteristics of the equipment in question. To do this, determine if the equipment is unique, rare or commonly available. Blueprints and schematics of the equipment should be securely stored, and manufacturers should also identify where they could source alternative equipment, such as through outsourcing, leasing or borrowing equipment from other sites.
Biopharmaceutical manufacturers should have a plan in place for the loss of critical utilities: electrical power, gas supply, water and compressed air. The plan should ensure that in the event of a disruption to access to one of these services, the required utilities are brought back online with minimal disruption to critical processes. For instance, if water services are lost or reduced, the supply of water should be limited to essential services, and a plan should include the provision of tankers to supply the site.
Similarly, backup generators, rented from approved vendors, should be considered when examining the risks posed by the loss of electrical power and compressed air, while a backup gas supply – drawn from cylinders or a tanker – could help to reduce the impact of a loss in gas services. In all cases, reducing demand for utilities – and prioritising essential services – should be part of the risk mitigation strategy.
Business continuity planning should also put the supply chain in sharp focus. Supply chain risks can be mitigated by stock levels that match usage rates and allow for known build times. It’s also vital to ensure that suppliers are qualified and have robust business continuity plans in place. Dual sourcing is an important risk mitigation policy and some vendors will offer dual manufacturing of consumables to enable this.
Finally, regular drills – designed specifically for each scenario, such as fire evacuation – are an important part of the preparation process. Should a plan need to be executed, staff must know their roles and responsibilities – and how to carry these out.
In conclusion, by identifying and understanding the risk, and establishing processes and procedures to overcome the effects of a potentially catastrophic incident or threat to production, biopharmaceutical manufacturers can ensure that damage to their operations is limited, with the resulting benefits for their businesses, and ultimately, patients.
This post was contributed by Guy Matthews, market development manager, Parker Bioscience Division, United Kingdom.
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Having potable water at our fingertips is something many of us take for granted. For those in facility management, this can be a significant challenge. Water pressure, temperature, environmental conditions and hostile environments can all affect a facility’s water. Only with the proper water solutions will a facility be able to count on dependable, treated potable water.
Following is a case of an existing system that eventually broke down due to poor planning and component selection, and the steps taken to rectify the problems.
Download our whitepaper with two case studies on potable water systems and choosing the right connectors, tubing and accessories.
This case involved a community center that was used by residents and businesses for various events and activities. A service director from a water treatment company was dispatched to the community center to investigate a complaint of “bizarre-smelling water” from a central RO system. Upon inspection of the entire potable water system, the service director discovered the root cause of the offensive smell in the water was directly related to hostile environmental conditions that contaminated the system and purveyance plumbing.
The centralized RO system was installed in the center’s mechanical room, which was separated by an open breezeway to the main structure that housed the kitchen area, ice makers, steamers, pot fillers, coffee makers, soda machines and drinking fountains.
The accumulated RO water entered a bank of activated carbon filters and then exited the mechanical room through a hole in the outside wall and then to direct burial of the tubing in the ground, where it continued for 90 feet (27.4 meters) before rising out of the ground to enter the back wall of the community center for access to the kitchen area. The purveyance tubing was clear 0.75-inch (19.05-mm) ID-braided, reinforced PVC hose, connected with plastic barb fittings and hose clamps. There was evidence of damaged hose due to sunlight exposure, as well as damage from grounds maintenance and other routine activities at the facility.
Inside the kitchen areas, inspection revealed algae growth in the tubing branches that serviced the POU connections.
The RO system was in good working order, requiring only the replacement of TFC membranes with commercial-size CTA membranes. Restoration of the purveyance piping would comprise the bulk of the work.
The reconfiguration and restoration consisted of:
This case was an actual event that clearly shows what is required to provide dependable, treated potable water service for health-related and food-service establishments. It is also an example of installations where flexible tubing or hose products may only be a part of a total material selection for a given project. The convenience of flexible tubing and hose products may make short work of a project, but in many cases fail because of poor project planning and understanding of environmental conditions that will affect the long-term performance of a potable water system.
The water usage, in this case, is what is referred to as “intermittent usage” where there may be as little as one day or as many as several weeks when there is no water usage. For that reason, it was important to maintain detectable chlorine throughout the accumulated water tanks and purveyance piping. Therefore, the CTA membranes were specified to allow chlorinated water to permeate the (chlorine-tolerant) membranes. Just as in a municipal water system where water is chlorinated to prevent bacterial contamination, these systems benefited from residual chlorine in the purveyance plumbing to maintain bacteriostasis of the RO water. The chlorine is then removed just prior to dispensing at the POU fixture(s) by the CTO filters.
The importance of assessing a project and selecting the right components for any application should never be taken lightly. Final selection of thermoplastic fittings, tubing and accessories is the responsibility of the person(s) specifying them for a particular application.
Author, Gary Battenberg is a technical support and systems design specialist with the Fluid System Connectors Division of Parker Hannifin. He has 35 years of experience in the fields of domestic, commercial, industrial, high-purity and sterile water treatment processes. Battenberg has worked in the areas of sales, service, design, and manufacturing of water treatment systems and processes utilizing filtration, ion exchange, UV sterilization, reverse osmosis and ozone technologies.
Submitted by Traci Simmons, marketing services specialist at Fluid System Connectors Division, Parker Hannifin.
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Potable water systems, whether in water filtration, beverage dispensing, life science, bottling or semiconductor are much more than the sum of their individual parts. A thorough analysis of the environment in which the system will be operating -- in addition to the selection of system materials, connectors, tubing and accessories – is needed to ensure trouble-free, long-term system performance.
The following is a case study of an existing potable water system in a dental office that broke down due to poor planning and component selection and the steps taken to rectify the problems.
The service director of a water treatment company received a frantic call from a dental office receptionist explaining that the potable water throughout the office had an unpleasant taste and was releasing a foul odor. The central Reverse Osmosis (RO) system was producing unusable water at the office’s water cooler in the patient lounge, the spigot in the employee break room and in the dental operatories where dental treatments are performed. Further, it was noted that there was a pungent odor emanating from the sink every time the tap water was turned on in the break room, while all the tubing supplying the service locations was turning green.
A diagnostic survey of the entire water system, plus a site audit of the existing installation and plumbing service to the building, revealed many issues, including:
Following acceptance of a comprehensive proposal to restore high-quality drinking water to the dental office, the water treatment company’s corrective actions included:
Subsequent to the plumbing inspector’s sign off, the service director took the customer on an inspection tour to appraise the taste and quality of the water and confirm her satisfaction. The customer approved the new installation and accepted a recommended service schedule for the new potable water system.
Download our White Paper covering two case studies on potable water systems. Learn the importance of project planning, component selection, and understanding environmental conditions in potable water systems.
Visit Parker’s water solutions website for all available system solutions for public, life sciences.
Submitted by Traci Simmons, marketing services specialist at Fluid System Connectors Division, Parker Hannifin.
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Traditional coal ash sampling and analysis using a laboratory facility can take a few hours if there is an on site lab or days if the samples are sent away for analysis. Using the Parker Bretby Gammatech portable Ash Probe, the results are available in a few minutes by probing the coal pile with no special training required by the operator. All the data is collected during the shift and can be downloaded onto a memory stick or direct USB cable to a PC in CSV format for analysis and reporting. The unit comes with the Parker Bretby Gammatech utility software for ease of download. This white paper describes the journey the Parker team made in producing the new AshGraffix controller for the Ash Probe.
Download white paper as pdf.
During the latter part of 2012, we were advised by our supplier that the micro processor used in the Ash Probe system was being made obsolete; this gave us two choices:
1. Incorporate the new processor and modify the software for the existing display unit.
2. Develop a new design display unit based on our customers feedback using the latest processor.
Fig 1. Old QWERTY keyboard display unit with LCD display in English only.
To support sales of the Ash Probe while we developed the completely new unit, we chose to write the new software code for the existing display unit as the old processors were getting harder to obtain; this was essential so we did not leave customers waiting for the upgraded version of the display unit and gave us the opportunity to upgrade older units coming back for repair.
Our customers gave us some important clues as to what features they would find useful in a new unit:
During 2014 we set out to design the new product and software called AshGraffix with the customer needs in mind. The project time frame was 12 months from concept so we would be able to demonstrate the first unit at mining shows in 2015. The design for hardware, electronics and software was all done in house by the Parker team. Support from our local suppliers was critical as we went through several iterations of the printed circuit board design as this was the first time we had used surface mount components and touch screens. Finding low power components was key to the end result as the unit needed to work a full shift in some very harsh conditions from the heat and humidity of India and Vietnam to the low temperatures and dry conditions in Mongolia and Siberia.
Neil Jenkinson, our mechanical Engineer, selected an aluminium extrusion for the outer case that was rugged and could hold the printed circuit board and touchscreen. He found a superb membrane protector product that would sit on top of the touchscreen preventing scratching and potential failure if sharp items hit the screen by accident or in duality use, e.g a pen tip to tap the screen. The industrial cable connectors were retained as they had given good service over 20 years and readily available for after market sales. Different types of of battery packs were tested for durability and full function duration with industry standard Metal Halide rechargeable cells coupled with an intelligent charger selected as the best all round option for the AshGraffix.
As Human Machine Interfaces (HMI) have become more prevalent in the industrial world and availability for colour touchscreens has increased, we had a good choice of suppliers knocking on our door to show us their ranges. In the end a choice was made and the quality has remained high during the last two years of sales.
The multi-layered printed circuit board was the most difficult item to develop as we wanted all the electronic components and connections to the outside world on a single board only slightly larger than the touchscreen. This task did not phase Chris Knight, our electronics engineer, who put in many hours working on the pcb design software to get the SMT components and tracks right on the multi layered design before it went out to prototype manufacture. The end result was a triumph for the design team.
Fig 2. New AshGraffix multi-layered single printed circuit board with new processor and using many surface mount components (SMT).
The next task that faced Kevin Corcoran, our intrepid software engineer, was to incorporate all our ideas into code. After many discussions and updates during 2014 (usually accompanied with tea and some form of cake - this was before the Great British Bake Off was aired to the nation, as we found this was the best way to inspire creativity), we designed the home screen, menus and navigation through the system with the question to the operator:
What do you want to do today?
The concept was to give the operator access to commence ash sampling with two taps from power up screen and standard icons used for configuration and saving files to the unit itself or to USB output.
Fig 3. Ash Probe and AshGraffix complete system.
During the first half of 2015 we were happy with the final design; software bugs had been eliminated and some test users had put the unit through its paces; only then did we go to the mining shows and offer the unit to the market.
Gary Wain is Product Manager, Parker Hannifin Manufacturing Ltd, Bretby Gammatech, Instrumentation Products Division, Europe
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Innovations in the design of primary isolation valves and manifolds for mounting pressure instrumentation can deliver enormous pressure control advantages to both instrument and piping engineers, ranging from significantly enhanced measurement accuracy, to simpler installation and reduced maintenance. Parker Hannifin has created a comprehensive range of instrument manifold mounting solutions for the main types of pressure instrumentation, employing close-coupling techniques which eliminate impulse lines and tube fittings to improve overall instrument performance and reliability.
There is no formal definition for close-coupling, but it has come to mean any instrument mounting system that enables a user to connect an instrument directly on to the process line, and primary flow control isolation valve. The overriding objective of this is to optimise the accuracy of measurement, by eliminating the long runs of tubing, tube fittings and bends and joints between process pipe and instrument that can cause pressure drops, and gauge/ impulse line errors.
Transmitter ‘hook-ups’ are often configured individually for each application, and can be large, heavy and difficult to install. By replacing such arrangements with purpose-designed close-coupled manifold/mounting solutions, users are able to optimise accuracy and reap a whole range of additional benefits such as...
‘Hook-ups’ for pressure transmitters often involve the custom configuration of complex arrangements of tubing, with multiple connections and valves. Measurement errors can be introduced as a result of long length impulse lines. These errors are frequently compounded by the use of different tube, fitting and valve components whose diameters may vary throughout an instrument installation.
Inaccuracies can distort the pressure impulse signal, causing errors of up to 15% (on flow measurements).
This traditional solution uses two sets of valve assemblies to create the double block and bleed valves, which are connected with impulse lines and connectors to the instrument manifold. It involves numerous discrete components, with all the associated costs and assembly time, and introduces bends that cause attenuation and turbulence that can affect measurement accuracy. If not carefully specified, other measurement accuracy problems can arise from differences in bore diameters of the various components, and unequal lengths of tubing.
View the Parker Close-Coupled Instrument Mounting System here.
Jim Breeze is Product Manager, Instrumentation Connections and Process Valves, Parker Hannifin, Instrumentation Products Division, Europe.
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Selecting a low-pressure hose often means the choice between rubber or thermoplastic. Both offer distinct advantages however, choosing a hybrid hose can maximize all the benefits in one unit.
Low pressure hoses are used on a wide variety of machines and industrial equipment to supply different types of fluids (e.g. air, water, oil, vacuum, etc.). Hoses are typically featured in different colors to help users identify individual fluid media inside equipment more easily. Other important factors in selection include fast and easy installation of these hoses.
Push-on/push lok hoses are very easy to assemble. Just push in the nipple into the hose and the connection is ready.
Rubber low-pressure hoses
Rubber hoses require a low nipple insertion force, enabling the user to perform the hose assemblies on-site on the machines, saving time and cost.
This type of hose is also highly flexible. The rubber compound makes the hose very ductile, decreasing the necessary force to bend it. This feature is very important in applications such as handling robots, where the hose flexibility is stressed at the maximum.
Finally, rubber hoses can support high temperatures. The strong grip between the hose inner layer and the hose nipple contour is guaranteed for environmental temperatures ranging from -40°C to 100°C.
Thermoplastic low-pressure hoses
Thermoplastic hoses require a higher nipple insertion force and are less flexible when compared to rubber hoses but they provide a high level of ozone resistance. This enables the long-term use of these hoses under harsh, outdoor environmental conditions (e.g. telehandlers, forklift trucks) as well as inside applications in high ozone areas.
The polyurethane material that is used also permits the offering of brightly colored hoses with a smooth surface.
Hybrid low-pressure hoses
Hybrid hoses, that combine a synthetic rubber inner-tube layer and a polyurethane cover layer, have been engineered to include all the advantages of the two materials in one unit. Their nipple insertion force and flexibility are equal to rubber hoses while their ozone resistance is equal to thermoplastic hoses, but it is on the abrasion and torsion resistance side that the hybrid hoses have no rivals.
The extreme resistance of these hoses to wear and tear makes them the ideal choice for use in very tough applications, such as energy chain systems within machine tool or injection molding machines and handling robots.
Exceptional torsion resistance, with more than one million test cycles on a pressure/torsion test bench, ensures a long-life time when used in multiple movement applications (e.g. welding robots within car production).
These hybrid hoses are also resistant to extremes of temperature, offer a smooth surface and are manufactured in a range of bright colors.
Advantages like these have proven the Parker Hybrid Push-lok Hose 837-PU to be a preferred solution in a wide range of markets. Global leading car manufacturers are among the users that have specified this hose type for use in their car production lines.
To discover more about Parker’s Push-Lok 837PU hybrid and other low pressure hoses visit our website, or contact us to discuss your application needs.
This blog was contributed to by Stephan Völler, Product Support Manager and Conny Stöhr, Marketing Services Manager, Hose Products Division Europe.
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When combined, they ask the following question: How can we improve our customer experience whilst increasing capacity on the network and at the same time reducing both our carbon footprint and the cost of running the railway?
There are obviously many things that can affect component weight. Size, shape and material are all key, but production method can also be vital in producing the optimum form.
Just consider the ability of additive manufacturing to produce components without traditional problems, such as shape and form restraints, or material waste produced by machining. The resulting components can be complex forms that maximise material thickness; this gives us engineered solutions that are both mechanically sound yet of lighter weight, and all in a shape or form to fit and integrate into the interfaces.
Reducing equipment weight alone may not affect the space envelope required; however, some gains can usually be made. It is worth weighing up the cost of aiming for using less space against the cost of developing the equipment to fit.
Learn more about Parker solutions for rail at this transportation website, or contact our dedicated transportation team to discuss your particular rail application performance, cost, weight and space requirements.
Article contributed by Dave Walker, market development manager for Rail, Motion Systems Group, Parker Hannifin Corporation.
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