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Safety and performance are top considerations when using hydraulic hose. To guarantee productivity and prevent potential hazards in the work environment, proper installation is imperative. A safe work environment and desired performance both require proper hydraulic hose routing, and these helpful installation tips are one way to ensure efficiency and help prevent premature hose failure.
The routing of a hose assembly and the environment in which the hose assembly operates directly influence the service life of the hose assembly. Proper routing of hose assemblies will maximize service life and ensure a safe working functionality.
For more information about hose installation and routing, watch the video below or contact your Parker representative.
Article contributed by Kyri McDonough, marketing services manager at Hose Products Division, Parker Hannifin.
Other related topics on hydraulic hose, hose application, and selection criteria:
Top 5 Reasons Customers Choose GlobalCore Hose
Measure and Specify Hydraulic Hose Length With Ease
Decoding a Hydraulic Hose Layline
Top 8 Reasons Hydraulic Hoses Fail
Hydraulic Hose User Safety
17 May 2018
In the fields of mobile technology and also in maritime and industrial applications, there is a rising demand for system solutions with the corresponding know-how, for the manufacture of pipe connecting systems. The machines and equipment being built by OEM customers are becoming ever larger and more powerful. On top of this, there is increased cost pressure and the themes of safety and space-saving designs take on more importance.
Parker's Complete Piping Solutions (CPS) concept offers design, manufacture and assembly of a high-value pipe connecting systems, all from one provider. CPS guarantees the user significantly more flexibility and clear cost savings from the manufacture of pipe connecting systems.
Worldwide Parker has several CPS centers, in which pipe connecting systems tailor-made for the customer are developed and produced under one roof. The CPS system is built up of modules, i.e. the customer can himself decide whether he will take delivery of a complete solution from piping concept through to on-site assembly, or instead avail himself only of individual services.
First, Parker systems engineers determine the customer’s exact requirement and then develop a tailor-made design. Then Parker specialists create the design using their decades-long project experience in various applications and pass on this valuable knowledge automatically into the new project.
When the customer has approved the design, pipes up to an outside diameter of 273 mm/10“ are made by cold-forming on CNC bending machines in the CPS centres. Here, in accordance with requirements, bend radii of 2 x D and 3 x D can be achieved. The finish-machined and cleaned pipes are then supplied via Parker central stores. If the customer requires, Parker’s specialists will also undertake on-site assembly and final acceptance.
In industrial applications and also in shipbuilding and the on- and off-shore sectors, there are complex projects where pipe connectors are manufactured and finally assembled over a prolonged period. It is exactly for this sort of requirement that Parker is offering its new OnSite Service Containers. They contain all the assembly machines which are needed for the preparation of pipes from 6 to 60 mm diameter. On request, larger pipes with an outside diameter of up to 10“/273 mm can also be made. This container includes machines and all the fittings and flange systems offered by Parker, from EO-2 to high-performance flanges through to Parflange F37. All the assembly machines have precision tools so that from high batch quantities downwards consistent assembly results are achieved.
A further new element in the Complete Piping Solutions system is Parker flushing units. Before the pipelines are connected to the main consumer after manufacture, they are cleaned by these units. This process avoids the lines becoming limited in their function by residues such as e.g. metal chips, or even the complete system coming to a standstill.
These units are certified containers for offshore use in accordance with Lloyds 20Ft DNV 2.7-1 CSC. Hydraulic mineral oil is used as the washing medium; it is led through the lines from a tank capacity of 6,000 l and an output of 3,000 l/min at a pressure of 75 bar (adjustable pressure). Parker wash units are tested for pressures up to 640 bar and are driven by a total of 6 electric motors at 400 V, 50 Hz or 480 V, 60 Hz.
To summarise, the advantage of the Parker CPS system lies in its building-block concept. The customer can call up the performance portfolio which best suits their requirements, while profiting from the decades-long experience of expert Parker engineers, saving their own resources or having more flexibility in their use.
Article provided by Ramiz Selimbasic, project manager piping, Parker Tube Fittings Division Europe
9 May 2018
Managing pressure classes, hose sizes and product uniformity in different regions can be challenging for hydraulic system designers at large, global OEM companies. ISO 18752 makes the process far easier for designers and their customers. The benefit is that the same specifications can be applied to all systems, no matter where in the world they are made or sold. This means manufacturers can be assured of receiving the same hydraulic hoses, tested to the same specifications and meeting the needs of their application globally.
OEMs who decided to adopt the standard can expect to gain numerous benefits financially as well as reduce engineering complexity. ISO 18752 centers around 10 maximum working pressure classes, ranging from 3.5 MPa through 56.0 MPa. Each pressure class accommodates an entire range of hose diameters. This contrasts with traditional DIN standards, which provide general, dimensional and performance specifications for the most common hoses used in hydraulic systems based on hose construction. By specifying hose based on pressure and performance, ISO 18752 streamlines the selection process, making it easier for equipment designers to find hoses for their applications. Challenges can emerge anytime and anywhere, therefore the hose solution should endure the tough conditions of the work environment. ISO 18752 simplifies the selection process by narrowing down the product range to a singular hose family based on application pressure requirements.
If the maximum requirement for an application is 21.0 MPa the user can utilize one hose family operating with a constant working pressure of 21.0 MPa across all diameters for the hydraulic system. The strict testing requirements of ISO 18752 allow users to know exactly what the hose is rated for and how it should perform while on hydraulic equipment. Hoses tested to higher impulse standards are likely to have a longer service life, which is why many users are switching to ISO standards. For instance, if you need a hydraulic hose for a severe application presenting many repeated pressure cycles in short time and long continuous service, you would select either the grade C or D hose assemblies. However, this assumption is based on the hose being correctly installed and protected from harsh environments. An important aspect of ISO standards is that they are accepted worldwide, which means wherever your hose is manufactured or purchased, you know it will be tested to the same standards. Global manufacturing standards are essential to many OEMs.
In response to market trends for high-pressure hoses, Parker developed the GlobalCore family of hose, which also meets ISO 18752 specifications and reduces engineering and service complexity by providing the first comprehensive product family across the most commonly used constant working pressures classes. GlobalCore includes the following hose 187 (7 MPa/1000 psi) 387 (21 MPa/3000 psi), 487 (28,0 MPa/4000 psi), 722 (28 MPa/4000 psi), 787 (35 MPa/5000 psi) and 797 (42 MPa/6000 psi) in size -4 to -48. Tested twice the ISO 18752 standard makes GlobalCore high performing in rugged environments and high-impulse applications.
Each GlobalCore hose can be ordered in a standard cover, ToughCover or SuperTough cover to prevent abrasion and extend hose life. The respective fitting series 43/48 is a is a permanent, crimp style hydraulic fitting enabling quick assembly with the Parkrimp crimpers because there is no need to remove the outer cover of the hose, eliminating premature hose failure by skiving too long or short. The 77 series fittings family is designed specifically for higher pressure applications. Parker’s worldwide reach makes GlobalCore easier to specify and source through our unrivaled distribution network of 13.000 locations globally.
Interested in GlobalCore? To discover more visit our website, or contact us to discuss your application needs.
This blog was contributed to by Conny Stöhr, marketing services manager, Hose Products Division Europe.
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1 May 2018
Many fleet owners are turning to alternative fuels to reduce their environmental footprint and decrease fueling costs. According to a 2016 Analysis of the Operational Costs of Trucking prepared by the American Transportation Research Institute, approximately 11 percent of those surveyed reported fleets using at least some alternative fuel vehicles – up 3 percent from the prior year. These vehicles ran on compressed natural gas (CNG), liquefied natural gas (LNG), electric, hybrid, and propane fuels.
Of the alternative fuel options, natural gas (NG) seems to be winning the race for dominance. According to the Department of Energy’s 2015 Annual Energy Outlook analysis, medium- and heavy-duty vehicles are projected to become the largest consumers of CNG and LNG by 2040. But which form of natural gas is really in the driver’s seat? According to Robert Carrick, vocational sales manager for natural gas at Freightliner, the answer is CNG.
“The trend definitely is more toward compressed natural gas. We estimate that more than 95% of the natural gas vehicles manufactured and delivered in 2015 were CNG.”
Robert Carrick, vocational sales manager for natural gas, Freightliner
Critical to the growth of CNG vehicles is the question of how, when and where to fuel the vehicles. With more than 1,300 public and private natural gas stations operating in the U.S., fueling options are more robust than ever. Yet a fleet of natural gas delivery trucks needing fast refueling has different requirements than refuse trucks that can be refueled overnight.
That’s why our new Heavy Duty Fueling Receptacle is of widespread interest to fleets dependent on fast-fill fueling.
Let’s face it: it’s only when a heavy duty vehicle is moving that it’s making money. Which means that for those vehicles that operate closer to 24/7 rather than 8/7 – vehicles like delivery trucks, buses, even long haulers – the faster the fill rate, the greater the efficiency and the lower the operational cost. It’s a reality that’s driven an increasing focus on minimizing the amount of service time for CNG vehicles.
Responding to the need, our new Heavy Duty Fueling Receptacle is capable of flows upwards of 5,000 SCFM; standard NGV1 Receptacles are typically rated to less than 1,800 SCFM. The higher flow rate of our ISO 14469 certified receptacle reduces fill time for larger vehicles, getting them back on the road and into service more quickly.
The new Heavy Duty Fueling Receptacle has been built to last. The product of Parker’s more than forty plus years of experience in CNG fueling applications, it offers superior quality and maximum reliability. Its hardened stainless steel body combines with a proprietary valve seal to prevent leakage and achieve rated service pressures up to 3,625 psi (250 Bar). The higher tank pressure will give you more stored CNG volume for greater range, according to a comment left on a Fuel Smarts article on truckinginfo.com.
Designed with the flexibility to accommodate a variety of different port end configurations, the Heavy Duty Receptacle is ideal for virtually any type of connection required for high-volume CNG filling. And it is MADE IN THE USA.
Contact Anthony Mistretta, Product Sales Manager, Quick Couplings Division, Parker Hannifin at 763-544-7781 or email Anthony.email@example.com to learn more about our new Heavy Duty Receptacle for CNG fast–fill applications, as well as our selection of receptacles designed for time-fill applications.
Join Parker at booth 637 during the ACT Expo Apr 30, 2018 - May 3, 2018, at the Long Beach Convention Center Long Beach, California, USA, to learn about our proven, multi-technology subsystems and components in fluid management, motion and fluid control and filtration. Parker has the largest offering of industry certified natural gas products. Our CNG solutions provide faster development, improved service life, reduced risk, and greater value.
Contributed by Doug Hopson, product design engineer, Quick Coupling Division, Parker Hannifin.
Related and helpful information:
The Importance of Natural Gas Product Certifications
CNG Fuel Systems for Heavy Duty Vehicles
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The Choice Between LNG and CNG as Transportation Fuel
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Natural Gas Engines for Heavy-Duty Applications
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24 Apr 2018
Today, gas chromatography (GC), mass spectroscopy (MS) and similar life science instrumentation are contributing to results in drug discovery and development, forensics labs, and the next generation of analytical chemistry research across the world. Lab managers are increasingly focused on efficiency and accuracy while keeping operational costs in check. They want analytical equipment that is more sensitive, smaller, flexible and cost-efficient. To meet their needs, OEM design engineers are challenged with finding the balance between improving analytical instrument performance and managing the bottom line.
From a fluid and gas handling perspective, engineers can meet instrument design requirements, improve instrument sensitivity and control costs by selecting valves that are optimized for size, weight and energy efficiency, yet also deliver consistent, high performance.
Read this white paper on how to improve signal detection in next-generation life science instruments
Parker has recently introduced a new miniature proportional valve designed specifically for analytical chemistry gas flow applications. The VSO® LowPro GC offers a new level of analytical performance for low flow control, maximum allowable leakage rate, and analytic service cleanliness to improve the sensitivity of next-generation analytical instruments, reduce sample noise, and increase signal detection capabilities.
The VSO® LowPro GC was designed for reliability and manufacturability. The latest finite element analysis (FEA) simulation tools were used to reduce the number of parts, size and weight of the valve's internal components – allowing for more repeatable production and a smaller, lighter design. Additional optimization efforts included dynamic, non-linear mechanical analyses, computational fluid dynamics analyses, and electromagnetic analyses, resulting in a valve that is half the size of most existing proportional valves on the market.
The mechanics of the proportional spring were enhanced using dynamic mechanical analysis software to provide the minimum amount of resistance needed to combat both fluid flow forces and solenoid forces. This resulted in a valve that has very smooth, linear flow control while minimizing the total amount of power needed to move the internal components.
The magnetic circuit was refined using finite element analysis simulation software to decrease air gaps and focus the field strength uniformly around the moving components. This optimization combined with component size reductions has resulted in a very high performing, fast response solenoid design. This improved response time allows the flow of the valve assembly to be more consistent because the valve can keep up with frequent changes in control currents which reduces flow overshooting – especially at low flow ranges.
The VSO LowPro GC valve was designed with 0.007” (0.18mm) and 0.011” (0.28mm) orifices to achieve the balance needed for a one valve solution. It can be used with a variety of gas types, presenting anti-leak capabilities, flow vs. mA control gain and meets the maximum flow and pressure requirements needed in a laboratory GC application. This one valve solution effectively controls large molecule, higher flow rate conditions while also having the capability to control the small molecule size, low flow rate conditions.
Parker Precision Fluidics has been partnering with OEMs in the field of analytical chemistry for over 30 years. Based on that experience, we were able to perfect fluidic control elements that are critical to demanding material science and cleanliness applications. In material science applications, when we select an internal sealing elastomer – we work to understand not only the base material, but different curing agents and curing times. We design our seals by optimizing those variables to reduce outgassing from the elastomer to reduce any potential impact on sample noise. Additionally, for over 20 years Parker Precision Fluidics has implemented a proprietary ultrasonic cleaning process to clean all parts in the fluid wetted path to ensure that we reduce hydrocarbon content and particulates on our parts to levels that have proven to be optimized for analytical service clean applications.
For more information on the VSO® LowPro GC Valve and how it improves signal detection in next
generation life science instruments, download our white paper.
This blog was contributed by Sam Ruback, marketing development manager, Parker Precision Fluidics Division.
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Facility operators in the oil and gas industry have raised concerns on how to solve their top failure modes: extremely short or non-existent dry run pump time limits and unacceptable levels of cavitation when pumping extremely light liquids with high vapor pressures.
Pump cavitation and dry run related failures cost companies millions of dollars annually, including replacement costs for damaged equipment and lost sales due to poor performance. With an improving economy and anticipated fuel production increase, sales of fluid-handling pumps are forecast to rise 5.5% annually to $84 billion in 2018. Given this proliferation, the historical pattern suggests that costs associated with repairs or replacements also will increase dramatically.
Learn how Parker's innovation in pump technology can reduce your operational downtime, decrease operating costs, and improve performance. Download our white paper now.
Dry running occurs when a pump operates without sufficient lubricating liquid around the pumping element. This can be caused by either widespread vapor formation, also known as cavitation, inside the pump or absence of pumping fluid altogether. These adverse conditions can lead to dangerously unstable pressure, flow, or overheating which may cause the pumping element to seize or break.
When cavitation occurs, vapor bubbles form and expand in the pumping liquid on the suction side of the pump before reaching the higher-pressure discharge side of the pump and violently collapsing near the surface of the pumping element. This triggers shock waves inside the pump which cause significant damage to the pumping element. If left untreated, cavitation will destroy the pumping element and other components over time, drastically shortening the pump’s life.
Cavitation may also cause excessive vibration leading to premature seal and/or bearing failure, in addition to creating an immediate increase in power consumption and a decrease in flow and pressure output.
Cavitation itself may also be so widespread that it creates a dry run situation inside the pump due to excessive vapor formation. Pumps most often rely on the pumping fluid itself to lubricate the bearing surfaces of the pumping element – if a pump is operated without this fluid, the low to non-existent lubrication at these bearing surfaces will cause excess heat generation, increased wear, and potentially even failure of the pump if the pumping element seizes or breaks. The life of a pump subjected to dry run will be significantly reduced or, in the worst case, brought to an untimely end.
Whereas cavitation is a common cause of pump degradation and failure related to the physics involved in the pumping operation, dry running, on the other hand, is usually related to how pumps are actively operated by end users. The most immediate cause of dry running is usually human error. Companies rely on operators to monitor their pumps, but problems occur in cases where operators unintentionally leave pumps running after the pumping operation is complete.
Despite an operator’s best efforts, harmful events still may occur from:
malfunctioning monitoring systems;
improper use of even well-designed control equipment;
pumps running overtime after the pumping operation is complete;
Our engineers were up for the challenge and developed the next generation solution of fluid transfer systems. The new technology combines advanced engineering and manufacturing capabilities to deliver a rugged solution for stationary, mobile, and high vapor-pressure ﬂuid applications.
The solution offers customers efficiency improvements as well as increases their uptime, which ultimately translates into revenue to the bottom line.
“What separates our solution from our competitors is, our technology is automated and integrated into the pump design. You don’t need to worry about pumps stopping and starting every 20 – 30 seconds, they will dry run continuously.”
James Chu, PE, chief engineer, Corporate Technology Ventures, Parker Hannifin
Learn how this innovation in pump technology can reduce your operational downtime, decrease operating costs, and improve performance. Download our white paper now.
Article contributed by Sara Weichman, business development manager, Fluid Transfer Solutions, Parker Hannifin
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29 Mar 2018