Reliability is the quality of being trustworthy or of performing consistently well. Here at Parker, we’ve made reliability the focus of our products since the company was established; this has made Parker’s products synonymous with reliability. The new BTX-Connect diaphragm pump meets next-generation manufacturers' needs for reliability, portability, noise reduction, and adds additional advanced technology that is revolutionizing miniature diaphragm pumps.
Reliability meets innovation
The Connect motor features the newest technologies in the miniature diaphragm pump industry. The Connect motor is a brushless motor with a patented motor bearing design that is key to the pump's reliability. The only component that wears overtime in a brushless DC motor are bearings, unlike brushless motors that have brushes that mechanically connect the rotor and are consumed over time. The bearing system of the motor is critical in pumps because of the reciprocating radial load on the motor shaft. The BTX-Connect uses a custom bearing assembly system designed to remove all of the bearing internal play; this ensures a longer lifespan and significant noise reduction. Additionally, the BTX pump family includes a proprietary advanced elastomer material, which is specifically designed to withstand the constant flexing and loading within the diaphragm pump enabling the pump system to go well beyond 15,000 hours of continuous use.
Advanced serial communication
When designing the BTX-Connect pump, we considered the need for digital communication. Prior to the BTX miniature diaphragm pump, most pumps only had analog methods of speed control, PWM, 0-5V input, or on/off. The BTX breaks new ground by offering the option of connecting with a serial UART (Universal Asynchronous Receiver/Transmitter) that can provide motor speed measurements, internal temp, and fail-safe shutdown conditions if over temperature or over-current occurs. This is ideal for monitoring the pump's performance during the pump's lifespan.
In addition to all these standard features, the BTX offers accessories that can be purchased separately, including: the EZ-Mount base and Filter-Muffler. The EZ-Mount base enables easy installation in instruments and rubber isolators that reduce vibration. The Filter-Muffler offers even more noise reduction by filtering up to 10 microns. This pump is well suited for hospitals and in-home devices when patients require less noise and distractions.
The BTX has several options that include: single head, dual head, pressure only, vacuum only, and pressure/vacuum. See below chart for the single and dual head typical performance and ordering options. Contact Parker's Application Engineers for more options or special requirements. Additional motor options and configurations will be coming soon!
“The BTX-Connect is the next generation of miniature diaphragm pumps that are meeting next-generation devices needs”
David Sayer, test and reliability engineering, Parker Precision Fluidics
In conclusion, The BTX-Connect is the next generation of miniature diaphragm pumps by meeting and exceeding next-generation device manufactures needs. The brushless motor, custom bearings, advanced elastomer material, ultra-low noise, optimized counterbalance with advanced control options and capabilities are creating a new standard in miniature diaphragm pumps. The BTX is rated at 15,000 hours of continuous life at 12 psi.Key features
Our applications engineering team is always available to provide recommendations and customize equipment to customer specifications, call 603-595-1500 to speak with an engineer.
Article contributed by David Sayer, Parker Precision Fluidics Division. David has held multiple positions in engineering during his lengthy career, including positions in R&D, applications engineering, and test & reliability engineering. David's current position at Precision Fluidics focuses on validating reliability and uncovering improvement opportunities for Parker pumps.
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We head into work each day with the expectation that we’ll put in our time and labor and then return home to our families safe and sound. The reality is though millions of Americans fall victim to workplace injuries each year. Some are as minor as a cut or scrape while others are much more severe and sometimes even fatal. Workplace incidents cause an enormous amount of physical, financial and emotional hardship for workers and their families. For organizations, the repercussions mean stiff penalties, violations and tarnished reputations.
Every seven seconds a workplace injury occurs in the United States. The numbers are even more staggering when analyzing the data and realizing this equates to 12,900 people hurt daily or 4.7 million a year, according to the National Safety Council. So, which industries are most receptive to workplace hazards? Manufacturing ranks in the top echelon of occupations with the largest number of injuries. With a growing demand for an increased workforce, these figures will likely continue to rise.
Most common workplace accidents
There are many hazards that put the health and safety of manufacturing workers at risk. From exposure to dangerous chemicals and corrosive cleaning solutions to confined spaces and heavy machinery; manufacturers have the difficult task of trying to address a wide array of safety issues.
One issue at the top of the list is oil. This chemical substance is prevalent in industrial equipment to make sure it is properly lubricated and operating. However, oil poses a wide range of health hazards to workers such as sensitization and irritation as well as physical risks including injury from slips and falls. Spills and leaks can happen at any point of the oil change process from draining and adding oil to disposing of the used oil.
Slips, trips and falls account for a third of all personal injuries and is a top cause of workers’ compensation claims. The risk is even greater for an individual performing oil duties, as they are exposed to toxic chemicals and susceptible to tripping and falling. The types of injuries include broken bones, cuts and lacerations, sprains, strains and tears. And most of these can easily be prevented.
Five key practices to avert a workplace incident:
Good housekeeping - If the plant floor is clean and well organized, an organization’s safety program can be effectively executed. Proper housekeeping should be a routine and be a part of each worker’s daily performance.
Wear proper shoes - Shoes are a critical component of personal protective equipment. Footwear that fits properly increases comfort and helps to prevent fatigue. Shoes or work boots with non-slip soles can also improve safety for employees.
Regulate individual behavior - The toughest of the three, it’s human nature to sometimes let our guard down and be distracted whether that’s being in a hurry or trying to manage multiple activities at once. It’s important for each individual to stay alert and pay attention to avoid becoming a statistic.
Standardize work instructions - Clear and concise work instructions and a standardized process reduce error and ensure the task at hand is completed safely and efficiently. Less variation in a process makes it easier to identify any existing safety issues.
Implement a new way to change oil to alleviate risk of workplace injury - In addition to the guidelines stated above, a safer working environment can be implemented by making simple adjustments to processes and procedures. For example, oil spills can be eliminated completely with a simplified approach to ensure safer and cleaner oil changes.
QuickFit™ Oil Change System from Parker provides a three-step process that allows oil changes to be done faster and more effectively. Oil is purged directly to the waste containment and then a vacuum is applied to extract the used oil from the pan. This same connection point is then utilized to refill the system with new oil through the filter. By applying one connection per compartment, it results in less variability during maintenance checks.
Reducing the number of steps in the process can eliminate any risk of safety hazards or spills, which improves an organizations’ bottom line by creating less consumable waste. Plus, QuickFit’s streamlined process helps to lower operating costs, increase profitability and reduce oil change time by 50 percent.
QuickFit applies ergonomic principles with a simplified design that grants easier access to even the most isolated and cramped components of an industrial application. This in return reduces exposure to fluids from fill to purge and greatly reduces the possibility of slips, trips and falls. Better safety conditions while changing oil saves time and costs on avoiding workplace injuries while increasing productivity.
Workplace safety cannot exist on best practices guidelines and policies alone. A safe working environment is established on a vision reflecting the way you do business through leadership, prevention and employee empowerment. And, a commitment to protecting the health and safety of people and the environments in which they operate. This demonstrates valid workplace safety and health that improves morale, productivity and the bottom line.
Contributed by Matt Walley, product sales manager, Quick Coupling Division, Parker Hannifin
The ASME 13.1 Standard states that companies are required to paint and label their piping systems to identify the media being conveyed. Each media has its own designated color and marking nomenclature. For example, compressed air piping systems must be painted blue, labeled "Compressed Air" in white lettering, and have an arrow designating the direction of flow.
In addition to meeting the ASME standard, painting the piping systems provides extra protection against harsh environmental factors that weaken and deteriorate the piping. These factors include, but are not limited to; high humidity, direct UV rays, extreme temperatures, persistent salt spray, and physical stress.
To meet the ASME 13.1 standard and to provide extra protection, some piping manufacturers provide per-painted piping options, but not all of these options are equal. To meet and exceed both of these requirements, look for piping that features a Qualicoat certified finish. Parker Transair has gone through the rigorous process to have our aluminum pipe meet the Qualicoat certification.
The Qualicoat difference
The Qualicoat certification body came into existence in 1986 in Europe. Formed out of several coating associations joining together, their goal was to raise the quality levels of material coatings in Europe. Today, Qualicoat has reached global recognition as the toughest coating standard. For a product to achieve Qualicoat certification, not only does the finished product need to pass the test, but also the coating process and materials used. Every region of the world has its own coating standard, but Qualicoat is still viewed as the toughest to achieve.
Comparing Qualicoat to the standard certifications side by side will show why a Qualicoat certified pipe is vital for your compressed air system. When looking at the process, for a pipe to be Qualicoat certified, the finished good, coating facility, and coating materials all must pass the certification guidelines. Under some certifications, only the finished good must pass the certification guidelines. To maintain Qualicoat certification, the manufacturing process must undergo an annual audit while others view this as an optional task.
A piece of compressed air pipe must undergo the same tests for both Qualicoat and regional certifications, but the pass/fail criteria is different. These tests are designed to test the coating’s adherence to the pipe under extreme circumstances. To test the adherence, the finished coating is crossed hatched, creating cuts in the coating, then exposed to various elements. If the coating does not come off during these tests, the pipe achieves certification. Prior to testing the adherence, the coating thickness is measured. For Qualicoat certification, the coating thickness must be 60 microns (0.06mm). For regional certifications, the coating thickness only must be 30 microns (0.03mm). After the coating has been measured, the adherence testing begins. For both Qualicoat and regional certifications, the piece of piping needs to withstand 3,000 hours in a salt spray test. In a simultaneous test, the pipe sections are submerged in a container of boiling water. For Qualicoat, the section of pipe is submerged for 2 hours. For regional certifications, the pipe is only submerged for 20 minutes.
Instead of paint or lacquer, the Qualicoat certified coating is powered coated onto the pipe. The chemical make-up of powder coating provides a stronger resistance to chipping and UV protection.
Qualicoat’s stringent criteria ensure the finished product can withstand the elements. This makes Qualicoat trusted certification in the construction industry. For compressed air piping, the coating will increase the durability allowing it to be used in most corrosive environments. Always consult with the manufacturer prior to installation to ensure compatibility.
When selecting an aluminum pipe for your compressed air system, remember to take into account not only the ease of installation but also the paint/finish on the pipe. A Qualicoat certified finish ensures the system will withstand the industrial environment for years to come.
Parker Transair aluminum piping has gone through the rigors to become Qualicoat certified for all diameters. (1/2" to 6")
For more information on Transair, visit our website.
This post was contributed by Guillermo Hiyane, product sales manager, Parker Fluid System Connectors Division.
Drinking water is one of the most controlled food products. The materials of products in contact with drinking water can generate impurities and microbial growth. This makes a significant health risk as well as a danger to the environment.
Non harmonised regulation at the European and global level is leading to technical and normative constraints for the development of drinking water circuits. In Europe, the approval procedures for these applications are mainly regulated at national level. Approvals are granted by institutes mandated to carry out tests and issue certificates.
Today, 80 percent of the issued certificates correspond to the valves and pumps and 20 percent to the other equipment of a circuit such as fittings, filters, flow meters, meters etc.
The challenge for the connector manufacturers
All materials in contact with drinking water must guarantee their sanitary safety for:
Plastic materials (elastomers, thermoplastics or thermosetting)
Lubricants and additives;
Mineral materials (i.e. glasses and ceramics)
Certificates must be established for normal product use, while considering the risks related to the application such as peaks in temperature, pressure or chemical aggression. The innovation and technical expertise of the manufacturer are key to meet the multiplicity of European requirements.
What is KTW?
The KTW - W270 certification means that product components in contact with drinking water have been tested and approved by German laboratories (TZW and DVGW) according to the recommendations of the UBA (Umwelt Bundesamt). The specificity of this approval is to be one of the most restrictive in terms of lubricants composition restriction.
KTW and W270 are the most recognized requirements for German manufacturers in the water and beverages sector. Because of the representativeness of Germany in the European economy, these certifications become essential.The LIQUIfit® Parker Legris products range
The LIQUIfit® fittings and tubes range from the Parker Hannifin LPCE division has been awarded KTW certification. With more than eight different certifications, this range now meets the most stringent requirements for drinking water and beverages worldwide.
The LIQUIfit® solution is the innovative solution of this sector. It is eco-designed from bio sourced material and offers unsurpassed compactness. LIQUIfit® is manufactured via a secure process offering traceability on each product and a unitary leak test. These unique features make it safe to operate and optimize use.
"It was important for us to offer manufacturers in the fields of drinking water and beverages, a new technology with the widest range of certifications for the peace of mind of our customers."
Chantal Beckensteiner, general manager, Low Pressure Connectors Europe Division
In addition, the range of LIQUIfit® fittings and tubes offers the widest mechanical performance with a pressure rating of 16bar and a temperature range of -10 ° C to 120 ° C.
"The worldwide Parker Group invests heavily in the water market. With the KTW certification of LIQUIfit® we now offer all European drinking water stakeholders a simple product to install with a wide range of performance in temperature and pressure."
Laurent Pouchard responsible for the OEM Business Unit of the LPCE divisions.
To conclude, the manufacturers of the drinking water and beverage industry want to ensure the health of people while optimizing their technical solutions and their manufacturing processes. Obtaining certifications is the guarantee to meet its requirements while allowing innovation to redefine technical solutions. LIQUIfit® is a new technology in this market and gives access to other markets such as process water transfer in liquid cooling systems.
This article was contributed by Vivien Rialland, product manager, BU Industrial & Processing OEM, and Laurent Orcibal, e-Business Manager, E-business, Parker Hannifin's Low Pressure Connectors Europe Division.
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Clinical and analytical laboratories are under constant pressure to increase throughput. Throughput is the amount of material or items passing through a system. In this case, it’s the analyzing a higher volume of samples per day. This brings several advantages: reduced cost per sample, decreased sample turnaround time, fewer instruments needed, and reduction of laboratory space required. These reasons, among others, are why laboratory managers are pushing instrument manufactures to increase their throughput.
This article looks into what limits the volume of throughput in labs, and how breakthrough advancements in valve technology can provide the above-stated improvements for clinical and analytical labs.
What factors slow throughput?
The time it takes to perform analysis in the labs can greatly decrease throughput. Instrument manufacturers continually search for ways to increase the process speed of analyzing samples so larger qualities of the sample can be analyzed each day. One way to solve this problem is by reducing the length of fluid passageways so the liquids spend less time in transit. This creates less clean up later. Reducing the number of valves needed and using smaller valves that can be placed closer together are two ways to reduce transit times.
The second challenge to instrument manufactures is to ensure no carryover of one sample or reagent into another. This is of great concern to lab managers because the integrity of the sample will be compromised, and the analysis will be flawed. Lab technicians spend lots of time washing out valves to ensure carryover doesn’t occur. The washing process slows the system down and generates liquid waste which can be very costly to dispose of. These factors are why instrument manufacturers have focused on reducing carryover in sampling and reagent circuits.
How to increase throughput?
The Precision Fluidics Division of Parker Hannifin Corporation interviewed many laboratory instrument manufacturers to understand their needs. The manufactures expressed the need for a valve with low carryover with low internal volume, and the ability to reduce the complexity for fluidic circuits. Based on this feedback, Precision Fluidics developed the Parker Ultra Low Carryover Valve. This valve offers best in class carryover performance and allows its users to replace two valves with one. The patented pending design offers a very small internal volume of 13.6 uL from diaphragm seal to the outlet port.
"Today's valve offerings have serious limitations in reducing carryover. We are introducing a new valve that can improve throughput by reducing carryover while offering features that also provide increased efficiency and speed in fluid circuits.
— Don McNeil, product manager, Parker Precision Fluidics Division
Parker tested the Ultra Low Carryover Valve against pinch and rocker isolation valves from three leading manufacturers and compared their respective performances to the Parker Ultra Low Carryover Valve. The models selected were those with capabilities of achieving the lowest levels of carryover among their respective product lines.
During testing these systems were also set and optimized to achieve the best carryover performance and each valve were of a three-way configuration. For the test, each was filled with Brilliant Blue dye, switched to the second channel, and a precision syringe pump was used to provide flow through the valve. The absorbance was measured until it was no longer detectable.
The data below shows Parker Ultra Low Carryover Valve has a clear advantage in washing out faster than the industry-leading pinch and rocker isolation valves. In cleaning to the 10 PPM level the Parker Ultra Low Carryover Valve cleans out 65% faster and with 65% less volume than the next closest competitor, which uses an internal pinch design.
This means by using the Parker Ultra Low Carry Over Valve in the original equipment manufacturer (OEM) design, you can increase throughput while reducing liquid waste.
Another feature of the Parker Ultra Low Carryover is the capability of having four different states of operation. A traditional three-way valve can flow through channel A or channel B, but the Ultra Low Carry Over Valve can close off both simultaneously or open both simultaneously. This makes it possible to replace a common pairing of a two way and three-way valve in a series with a single Parker Ultra Low Carryover valve.
Design more efficient products to increase throughput
In conclusion, the new Parker Ultra Low Carryover will allow laboratory instrument manufacturers to design more efficient products to increase throughput in clinical and analytical chemistry labs. The following summarizes how The Ultra Low Carryover increases throughput:
Our applications engineering team is always available to provide recommendations and customize equipment to customer specifications.
To learn more, visit Parker Hannifin’s Precision Fluidics Division or call 603-595-1500 to speak with an engineer.
Don McNeil is the market development manager at Parker Precision Fluidics. Don has over thirty years of experience working in product management for Clinical Diagnostics and Analytical Chemistry companies. He holds a Bachelor's degree in Biochemistry and an MBA.
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Projects related to the construction or buildings life cycle are increasingly complex and fast. The number of trades involved in the life of an industrial building is always larger and more specific. BIM, as a shared project management process represents an effective and innovative response.
What is BIM?
BIM comes from the English Building Information Modelling. The term building here is generic but also includes infrastructure.
BIM is primarily working methods and a 3D parametric digital model that contains intelligent and structured data.
It guarantees the sharing of reliable information throughout the life of a building, from its design to its demolition. The digital model is a digital representation of the physical and functional characteristics of this building.
BIM is a collaborative e-platform on a construction project, bringing together all the trades of this project, according to a common language.
BIM: A new service offered by Transair
The construction projects involve a strong collaboration between the different actors of a project, to better control each phase of the life cycle of a building.
As the leading manufacturer of modular industrial fluid networks; Transair® has identified the interest of integrating the BIM platform increasing used in the building sector.
"With BIM, the way construction professionals work is hanging, with multiple gains for the entire industry," said Nicolas Maupillé, project manager and DSO Manager at Transair®.
Always listening to the market, Transair® sees BIM as a performance accelerator in project management of its users and partners. Transair® has partnered with a specialist, BIM & Co. for the modeling, integration and publication of its global offering of modular networks for industrial fluids (BSP ISO and NPT ANSI).
BIM simplifies the design process in general, in particular by optimally integrating Transair® networks.
It, therefore, allows users and integrators of the Transair® system:
- To foster better collaboration between the various stakeholders of the same project
- To have accurate visualizations at all stages
- To reduce the risk of errors throughout the project
Transair® launches its library of BIM-enabled objects
All BIM & CO tools dedicated to Transair® make it easy to structure and distribute product data as BIM Ready objects to all users of the platform. The objects are thus adapted to all stages of the process, from design to construction, operation and maintenance.
To be BIM compatible, all the product families of the Transair® system are available in REVIT format, in LOD (Level Of Detail) 200 and 400. All the specific features of the Transair® product range are automated in a 100% template. dedicated.
To benefit from this new service, it is enough:
- To register on the BIM & CO platform,
- To access the Transair space
- Then download the template and the objects necessary for the construction of the desired network free of charge.
"Transair® wishes to integrate fully into the spirit of BIM by providing the various players with a quality service, which will allow them to understand the design. of their networks in an intuitive way and thus to stay focused on their projects, so it was important for us to propose to the design offices, objects, whose data are properly structured and informed"
Guillaume Tétard, business unit manager, Transair.®
For further information on Parker's BIM solutions contact us.
Article contributed by Nicolas Maupillé, DSO manager Transair® and Laurent Orcibal, ebusiness manager, Low Pressure Connector Europe, Parker Hannifin Corporation.
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Quick couplings allow fluid lines to be quickly and easily connected and disconnected without the need for tools. Non-spill or dry break couplings are a specific type of connector designed to eliminate spillage during a connection and disconnection.
What sets non-spill apart from traditional couplings? The flush face valve is the difference maker as this feature minimizes discharge and trapped air, while ensuring repeated dripless connections and disconnections. Non-spill or dry break quick disconnects are key to maintaining a clean environment, protecting system fluids from contamination caused by air or debris, and most importantly, keeping workers safe.
Did you know 98 million gallons of fluid from hydraulic equipment is improperly deposited into topsoil, groundwater, rivers and lakes annually? That’s according to the National Oceanic and Atmospheric Administration (NOAA). The statistics are staggering when you come to the realization that one liter of oil can pollute up to one million liters of water.
Fluid leaks and spills have the potential to cause significant environmental issues. If contamination were to occur, organizations would be responsible for damage to ecosystems and wildlife, resulting in high cleanup costs and federal penalties. All industries from agricultural food production to manufacturing and service operations are affected by environmental protection regulations.
Even what looks like a small leakage can sometimes leave lasting effects on our precious planet. Non-spill quick disconnects keep fluids contained and its environmental impact to a minimum. The flush face valve quickly shuts off flow when fluid lines are disconnected and is engineered to eliminate spillage and fluid loss.
Maintain system performance
Hydraulic equipment relies on fluid system integrity to effectively transmit power for instant, accurate response and reliable performance. Contamination and the loss of performance transpire when debris and air work their way into the hydraulic fluid. It’s common for this to occur when dirt accumulates on the exposed surface of a traditional poppet valve tip when disconnected. Then, when the quick coupling is reconnected, air and contamination are pushed into the system fluid as the poppet valves open. The air and contamination can cause a loss of horsepower, temperate performance abnormalities and a variety of detrimental effects.
The flush face valves of non-spill quick couplings do not provide surfaces or areas for dirt to accumulate and collect. In environments where dirt is present, the smooth flat surface of the coupling end can be easily and quickly wiped clean. Additionally, non-spill valves keep air inclusion to a minimum because the flat-faced surface does not trap pockets of air as fluid lines are reconnected.
Promote workplace safety
There are many safety and ergonomic risks associated with hydraulic system leakage. Exposure to dangerous chemicals and confined spaces significantly enhance the chances of injury during maintenance operations. Slips, trips and falls account for a third of all personal injuries and is a top cause of workers’ compensation claims.
The most common reason why? Wet or oil surfaces as a result of incremental leakage. Spills and leaks can happen at any point and pose a wide range of health hazards to workers such as sensitization and irritation as well as physical risks.
Parker’s non-spill quick couplings
Parker offers a variety of non-spill couplers to fit versatile fluid applications. The FEM Series and 71 Series are both ideal for use in applications where air inclusion and fluid loss must be minimal. When chemical compatibility is also needed, Parker’s FS Series is a good option.
Parker’s FEM Series is compliant with the highest design and performance specifications set forth by ISO 16028. The standard defines a common dimensional and performance profile that ensures global compatibility and interchangeable connectability with other manufacturer’s quick couplings built to the same standard. Parker’s FEC Series nipples also provide the ability to connect under trapped residual system pressure. FEM Series quick couplings are constructed from steel material and are commonly used to connect hydraulic lines to tools used in construction and utility work. In addition, they are widely used on skid loaders and other similar machinery.
The 71 Series, an original Snap-tite design non-spill coupling, is rated for working pressures up to 10,000 psi. With material options featuring steel, 316 stainless and high pressure stainless steel, Parker’s 71 Series non-spill quick couplings are utilized in industrial applications as well as topside offshore oil drilling and construction.
FS Series non-spill quick couplings provide excellent chemical compatibility. The all stainless steel construction and Fluorocarbon seals make them ideal for closed system transfer of chemicals or corrosive media. Other applications include food processing and chemical dispensing.
Article contributed by Anthony Mistretta, product sales manager, Quick Coupling Division, Parker Hannifin Corporation.
Plentiful in North America and relatively inexpensive, natural gas produces 30 percent fewer greenhouse gas emissions than gasoline or diesel, making it an ideal alternative fuel for a diverse range of applications. Heavy-duty vehicles, such as refuse trucks, Class 7-8 trucks and buses are the largest users of this fuel source. Given this growing change, the need for reliable leak-free connections is even more important which is why Parker developed a CNG version of its Seal-Lok O-ring Face Seal (ORFS) fittings.
Known for proven leak-free connections, Seal-Lok ORFS fittings have many benefits for these CNG applications. The ORFS design provides unlimited reusability, resistance to vibration, zero clearance for easy assembly and replacement, as well as resistance to overtorque which has been known to be an issue for other fittings designs. Though ORFS fittings have traditionally been used in industrial hydraulic applications due to the elastomeric seals, the creation of a special CNG O-ring has now made this reliable connection a viable option in alternative fuel applications.
Since the available amount of energy per liter of natural gas is low compared to the traditional fuels, it is compressed to a pressure of at least 200 bar (2900 PSI). Therefore, special attention must be paid to the safety aspects related to CNG Cylinders on-board Natural Gas Vehicles (NGVs). One potential hazard seen in garbage truck operation is a load fire. Load fires are the most common type of truck fire in the refuse/recycling industry.
As you know, refuse vehicles travel in populated residential areas every day. It is critical to ensure the safety of not only the drivers, but anyone in the proximity of a NGV. The trucks are engineered to be extremely safe; however, load fires can heat the CNG storage tanks, raise pressure and introduce the risk of a rupture occurring. To reduce the risk of a rupture in the event of a fire, the CNG cylinders must be equipped with a Pressure Relief Device (PRD). The effectiveness of this specified fire protection system must be validated in a bonfire test.
Bonfire test requirements for Cylinders and PRDs are defined in Regulation 110, ANSI/CSA NGV 2, and CSA B51 Part 2, however, there are no specific bonfire test requirements for the fittings and seals connecting CNG tanks to the system. Given the growing use of Seal-Lok O-ring Face Seal CNG fittings in these connections, Parker felt it important to develop bonfire testing to validate they would perform if exposed to fire.
The criteria for passing were defined using the most rigorous requirements placed on CNG tanks in ANSI/CSA NGV 2 and CSA B51: samples pressurized to 3,600 psig and exposed to a minimum of 590 °C for 20 minutes. To qualify as passing the bonfire test, all seals must have maintained pressure for at least 20 minutes after being heated. This bonfire test was performed by the outside testing facility of Southwest Research Institute’s (SwRI) Fire Technology Department.
Seal-Lok for CNG passed the bonfire test. Passing the bonfire test confirms that Seal-Lok for CNG meets the industry safety requirements for CNG components used in natural gas vehicles. Seal-Lok ORFS CNG fittings are the first and only fittings in the industry to be Bonfire Tested. In addition to passing the bonfire testing, these fittings are also tested and certified by TUV according to the following standards: ECE R110, ANSI NGV 3.1-2014/CSA 12.3-2014 for stainless steel and zinc nickel fittings, and ISO 15500.
To learn more about the Seal-Lok for CNG Bonfire Testing, download the test summary.
Find out more about this product line and see the available configurations on the Seal-Lok for CNG product series page. If you have any questions about this article, please post them and we will respond. To talk to Parker regarding the benefits of Seal-Lok for CNG for your application, please call 614-279-7070.
Written by John Holzheimer, applications engineer, Parker Tube Fittings Division
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Medical-care settings are often stressful, making it hard to rest or sleep—both of which are important for healing and recovery. And, as the portability of medical technology continues to rapidly evolve, an increasing number of medical devices and instruments can be utilized in the patient’s home—for example, point-of-care diagnostics, dialysis, and portable oxygen concentrators.
For the best possible experience, medical equipment should be as non-intrusive as possible.
A frequent complaint by patients and other end users is the disruptive noise that medical equipment can generate. Compression therapy equipment, for example, which is used to prevent clotting in a patient’s legs and feet during hospital stays and surgery, utilizes pumps that cycle on and off over long stretches of time. This can interfere with rest and sleep. The volume of the pump may also be too loud, creating a disruptive environment. Therefore, it is essential to minimize the operational sounds of medical devices to optimize the end-user experience.
For comprehensive information on the impact of noise generating equipment on patients and sound mitigation solutions, download the full white paper, "Advancements in Noise Reduction Techniques for Medical Equipment Manufacturers".Sources of noise
In pump engineering, there are two main sources of sound generation:
Common components in medical equipment that often generate noise are:
Diaphragm pumps tend to be the most substantial source of noise. Their motors rotate a crank that moves a connecting rod up and down, flexing the diaphragm. This action builds pressure or vacuum and generates flow. As the pump operates, it emits vibration across the body of the device.
Solenoid valve and fan noise accompany sound generated by diaphragm pumps during operation. This is caused by the normal actuation of solenoid valves and rotation of the fans as they oscillate the air to keep the equipment cool.
Since pumps often cycle, their noise levels can be intermittent. This breaks the normal sound conditions in a room, making it difficult to sleep or relax.
Noise reduction solutions for diaphragm pumps
OEMs often report that noise generated by their equipment is the number-one end-user complaint. However, only a few component manufacturers make sound reduction a top priority in their product enhancement activities. Although mufflers can sometimes be added to equipment, this increases the overall dimensions of the device and can cause an increase in back pressure.
Noise reduction is a key component of Parker’s new product-development projects, especially sound mitigation techniques for diaphragm pumps. We recently tested several methods of sound reduction, including:
Results are shown below:
Oversizing the pump and running it slower
Adding a muffler
Plastic mounting plates
Adding a pump enclosure
For structure-born noise, plastic mounting plates that incorporate elastomeric feet reduced the vibration transmission from the pump to the medical device, resulting in a 3-dB noise reduction for an average Parker diaphragm pump. Adding a customized pump enclosure achieved up to 9 dB in sound reduction.
Pneumatic noise was reduced by oversizing the pump and adding a muffler. Oversizing the pneumatic performance of the diaphragm pump and running it at a slower speed reduced the number of pulsatile flow peaks and, in certain applications, achieved a 3-dB sound reduction. Installing an expansion chamber resulted in a 4-dB sound reduction.
A 6 to 9dB noise reduction can be achieved by combining some of these techniques. These are relatively simple and inexpensive solutions that can be easily built into medical devices and diagnostic equipment, creating a much more desirable environment for the end user.
Optimizing the healthcare experience
Enhancing user comfort through medical technology advancements represents the core value proposition for OEMs. Incorporating effective noise reduction solutions into medical device design is essential for a positive patient experience and long-term use of the equipment.
To find out more about sound reduction techniques for medical equipment and what Parker Hannifin has to offer for accessories and application engineering solutions, please contact Parker Precision Fluidics at firstname.lastname@example.org.
For comprehensive information on the impact of noise generating equipment on patients and sound mitigation solutions, download the full white paper, "Advancements in Noise Reduction Techniques for Medical Equipment Manufacturers".
This blog was contributed by Richard Whipple, marketing communications manager, Parker Precision Fluidics
Hard working excavators, tunnel boring, mining, oil field and forestry equipment use a variety of tool attachments. This allows them to be versatile for a multitude of activities, all necessary to perform the work at hand. Some of these attachments require multiple connections to the hydraulic lines, depending on their individual function, whether it be digging, scraping, scooping, grabbing and lifting, cutting, or any other articulated motion.
At the job site, equipment tool attachments might be changed out several times in the process it takes to complete the project. A machine operator can save time and efficiently utilize a single piece of equipment by switching out a bucket for a scraping blade or rock crushing hammer or any other attachment end that is needed.
Heavy duty screw-to-connect quick couplings are the best choice for these types of tool attachment connections. They allow the hydraulic lines between the equipment and the tool attachment to be quickly disconnected and reconnected without extensive downtime.
Built to take a beating
Screw-to-connect couplings are built to withstand the demanding requirements of applications where hydraulic lines are subjected to the stress of high-pressure impulses. The repeated pounding of pressure in the lines and through the coupling can wreak havoc and easily cause damage to the internal components and sleeve locking mechanism of any standard quick coupling.
The threaded sleeve on a screw-to-connect coupling provides a secure connection that is resistant to loosening or disconnection caused by vibration. It is also a good defense from the damaging effects of material Brinelling, which results from hydraulic shock, when repeated pressure impulses cause metal to deform. When Brinelling occurs on a quick coupling with a standard sleeve mechanism, the coupling can become permanently locked together and inoperable. Threaded sleeves on screw-to-connect couplings prevent Brinelling and keep couplings in working order to be reliable for repeated connection and disconnection.
Parker’s screw-to-connect couplings meet the challenge
Parker understands the rigorous performance expectations that define screw-to-connect quick couplings. The FET and 59 Series have both been engineered to meet the challenge. Built from high strength materials, these couplings are rated for pressures up to 6,000 psi. They also enable connection while hydraulic lines are under residual pressures up to 5,000 psi and disconnection at 2,500 psi. The ability to connect the couplings while under pressure allows equipment operators to switch-out tool attachments without first having to spend time bleeding pressure off the system.
Parker FET and 59 Series also have flush face valves that are designed for non-spill operation, virtually eliminating fluid loss at disconnection and featuring low air inclusion at connection. Air inclusion in a hydraulic system causes diminished performance and increased wear of system components. Non-spill valves guard against the damaging pressure checking from trapped air in the lines.
As the FET and 59 Series have many similarities, they also have some significant differences that are important considerations when choosing the best screw-to-connect coupling for your heavy-duty application.
Popular interchange or high performance features?
Parker’s FET Series is directly interchangeable with other manufacturers’ screw-to-connect couplings of similar design. The threaded sleeve uses the same style of connecting threads as the competitive designs, which can take up to seven sleeve rotations to complete a full connection of the two coupling halves. This is a very popular and widely used interchange design. FET Series Couplings have an FNC coating and stainless steel valves for extended durability and corrosion resistance. They are available in a wide range of body sizes up to 2 inches. Heavy-duty Code 62 Flange ends are also an option for the larger sizes.
Parker’s 59 Series is highly engineered with the end user in mind. This unique screw-to-connect coupling makes the most demanding hydraulic connections manageable. Rugged Acme threads in the connecting sleeve resist damage, and the larger thread form is easier to keep clean from dirt and debris. The double start feature quickly aligns the threads to provide fast engagement and a full connection requires only 2.5 sleeve rotations. The 59 Series also has an integrated bearing that adds a swivel function to ease the frustration of dealing with hoses under pressure.
The FET Series is ideal for any high impulse screw-to-connect application, especially where couplings need to be interchangeable with other similar couplings already installed on equipment in use. In contrast, Parker’s 59 Series has a unique design and brings the benefits of added performance features to provide a faster, cleaner and easier connection that far exceeds other heavy duty screw-to-connect couplings available today.
Learn more about Parker’s screw-to-connect solutions.
Parker’s screw-to-connect couplings are available for purchase on parker.com. Simply add products to your cart for shipment within two days for in-stock items.
Article contributed by Lori Wessels, product sales manager, Quick Coupling Division, Parker Hannifin Corporation.