Most manufacturing facilities use compressed air to power their production lines, but improper management of this unseen utility during routine maintenance and emergency situations can have serious consequences. Proper installation and use of a simple device like a pneumatic lockout valve (AKA pneumatic isolation device) can prevent personal injury and death, but most facilities do not take the time to install such devices. Pneumatic lockout valves carry such high importance that OSHA (Occupational Safety & Health Administration) audits facilities for proper lockout/tagout procedures and devices.
The OSHA standard that covers proper use of lockout valves is the Control of Hazardous Energy (lockout/tagout). This standard states that all machinery must have a proper device and procedure to neutralize the energy, thus shutting the machine off during routine maintenance and emergency situations. In fiscal year 2019, OSHA wrote enough lockout/tagout violations that improper control of hazardous energy made it to #4 on their list of Top 10 frequently cited standards. These citations fall into either the Serious or Willful category. A serious violation (substantial probability of injury or death is present) carries a penalty of $13,653 and a willful violation (committed with intentional disregard for OSHA standards) carries a penalty of $136,532. Even with the potential for these hefty fines, most manufacturers do not want to invest in lockout valves. As a cost comparison, lets look at a serious violation ($13,653 per violation penalty) vs the cost of a Parker Transair pneumatic lockout valve. On average, the cost of just one serious violation for improper control of hazardous energy is 45.5 times more than the cost of one Parker Transair pneumatic lockout valve!
OSHA only enforces the use of a energy isolation device (i.e. lockout valve), they do not define what constitutes a lockout valve. The definition of a lockout valve is determined by ANSI B11.0 and PMMI B155.1. These standards list four criteria that a device needs to meet to be considered an energy isolation device:
Now that we know the criteria, lets take each one and analyze how the Parker Transair FLV series of pneumatic lockout valves meets the criteria for an energy isolation device.
1. Be capable of being locked in the OFF position only
The purpose of a lockout valve is to quickly expel the pressurized compressed air in the lines and shutting off the machine. This is done for maintenance and emergency situations. When the handle of the lockout valve is pushed inward, it shuts-off the flow of compressed air and vents the downstream pressure out the exhaust port. Once the handle has been pushed in, a lock can be placed on the handle, preventing the handle from being pulled out and resuming the flow of compressed air to the machine prematurely. Unlike a ball valve that can be locked in both the open and closed positions, the Parker Transair lockout valve can only be locked with the handle is pushed in, cutting off the flow of compressed air.
2. Be easily identifiable as an isolation device.
In the unfortunate event that an emergency shut-off is required, no one wants to be fumbling around trying to find what valve will shut-off the flow of compressed air. To achieve this criteria, Parker Transair lockout valves are painted a bright safety yellow color with a red handle. The yellow and red stands out and is easily identifiable as the compressed air line shut-off.3. Have a visible pressure indicator
Energy isolation devices need to have some method of visible showing if the device is under pressure or not. The type of indicator is not specified, so a lockout valve can use either an electronic meter or a simple manual pop-up indicator. The Transair lockout valve uses the time tested manual pop-up indicator. On these indicators, the red button will be visible when the valve is under pressure. The red button will retract when the compressed air has been successfully vented from the valve.4. Have an exhaust port equal to or larger than the supply ports
Expelling compressed air from a line should be done as quickly as possible. This fact is why all energy isolation devices need to have a large exhaust port. In comparison, a vented ball valve has a tiny port, most of the times less than 1inch! This small hole does not vent the air fast enough and could potentially concentrate the compressed air into a dangerous stream if the pressure gets high enough. For this reason, Parker has engineered our lockout valve to have a bigger exhaust port to expel the compressed air as fast as possible. This expelled air can create a loud whooshing sound. To quiet this action, Parker Transair offers three sizes of silencers to match the exhaust port.Simplified Installation
Transair lockout valves are available with either a 1/2", 3/4", 1". 1-1/2", or 2" NPT threaded inlet ports. To simplify connections between lockouts valves and Transair aluminum compressed air piping, we suggest the use of Transair threaded connectors. These connectors feature a NPT threaded end to be used on the lockout valve and either a push to connect or snap ring end to connect to Transair aluminum pipe. Our threaded end connectors are available in several different configurations to allow the installation to be customized to the environment. .
Pneumatic lockout valves offer the control over compressed air that manufacturing facilities need. Coupling these valves with a well thought out lockout/tagout procedure document will keep OSHA from citing your facility for improper control of hazardous energy. The Parker Transair lockout valve meets the four criteria that every energy isolation device needs to meet, with the added superior engineering you expect from Parker Hannifin products. Visit our website or contact us to learn more about Parker Transair line of lockout valves, aluminum piping, and FRLs!
This post was contributed by Jim Tuma, marketing services manager, Parker Fluid System Connectors Division.
17 Feb 2021
The original equipment manufacturer (OEM) parts are the best parts to use when replacing a part on a machine. The OEM part will be matched to the original specification of the machine and will give you the confidence that replacement is identical (or better) to what was originally in place. Parker is the OEM that you should trust when it comes to a hose assembly replacement.
Unexpected failures happen to everything, and your hose assembly is no different. According to the Society of Automotive Engineers (SAE) the average life of a rubber hose is approximately ten years from the date it was manufactured when the conditions are ideal. Of course, in the real world there are several factors like abrasion, pressure spikes, or increased temperatures that could shorten a hoses life.
Being ready when failure happens is important for maintenance. Obtaining an OEM Parker hose assembly replacement has never been easier with PTS tagged hose assemblies. Replacement Parker hose assemblies can now be ordered online, from parker.com and the ParkerStore network and local distributor outlets are here to serve you.What is a PTS tagged hose assembly?
Parker Tracking Systems (PTS), is an efficient tool that will help you when you need to specify a hose assembly replacement, Each PTS tagged hose assembly has a unique tracking number that provides the details of the hose assembly.
A PTS tagged hose assembly can be ordered without having to remove the part. PTS eliminates the need to wait for removal before the new part can be acquired. By reducing transaction time, customers can realize significant gains in productivity and increases invaluable up-time.Replacement PTS tagged hoses now available for online ordering
Parker hydraulic hose replacement is easier than ever when you order your PTS tagged hose assembly online. Your PTS tag includes all the configuration specifications you need.
Ordering is easy, start with your PTS ID number and have your hose replacement shipped to you.
Hose repair has never been so easy with ParkerStore HOSE DOCTOR. Limit the interruption of a break and let us bring the solution to you with our mobile, hose repair solution. Trained professionals come to your site with fully stocked trucks to identify, diagnose and replace hose assemblies on hydraulic and pneumatic systems. Plus they're available anytime, day or night, for any of your service and repair needs.
Get the equipment, hose assembly repair and professional advice you need, so that your downtime doesn’t last a long time. Plus, ParkerStore HOSE DOCTOR is backed by our global network, so we're ready when and where you need us with over 1,000 vehicles around the world.
Find a ParkerStore HOSE DOCTOR nearest you or call 1-866-550-HOSE.Parker distributors are always nearby
Parker’s global distribution network is unparalleled in the industry. 13,000 locations worldwide ensure, that Parker customers are serviced by local partners in local language. Our distribution network consists of well-trained, local and independent companies possessing their own expertise within technologies such as instrumentation, pneumatics, hydraulics, etc.
Through this network, customers have instant access to Parker's product range as well as services carried out by our distributors. Under the tab "Where to Buy" on parker.com, you will find the Parker distributor that has the products tailored to your needs.Own your own Parker components
Sometimes speed is very important. And, nothing is faster than owning your own Parker crimper, hoses and fittings. With an inventory of common replacement parts, you will be in the best position to quickly respond to a need for a hose assembly replacement.
Parker delivers exceptional quality and reliability when it comes to hydraulic crimping equipment and tooling. Factory-quality hose assemblies can be quickly, easily, and cost effectively manufactured with Parker's complete line of equipment and tooling from hose saws, to push-on stands, to hydraulic crimpers, to cleaning and capping systems.
Parker is here to help when failure happens, do not sacrifice quality with anything less than Parker OEM parts.
Article contributed by Matthew Davis, business development manager and
Ulises Navez, product sales manager at Hose Products Division, Parker Hannifin
12 Feb 2021
Combining innovative thinking with core technological competency can tame the challenges of off-road machinery operating in hazardous mining, agricultural, forestry, material handling, and construction environments. Intelligent system solutions backed by insightful engineering expertise offer increased equipment durability and serviceability as well as worker safety. From major components and systems to the smallest fittings and bolts—our core technologies are leading the way in improvements- from streamlining productivity to efficiency, reliability, and safety. Solutions helping customers improve their off-road machinery’s productivity and bottom line. See for yourself below in our most-read off-road machinery blogs.
Important System Design Considerations for SAE J1926 Ports
By TechConnect Team
Fitting and port dimensions are an exact science. For the design engineers incorporating these fittings into their systems, it may not be obvious what the Critical Dimensions are. Rest assured, the fitting community has meticulously calculated every aspect of the design. The majority of these dimensions are coming from industry standards (some of which have been refined for decades). When you are choosing which fitting to use in your design, there are several considerations you must make to... Continue reading.
Productivity Improved with Multi-Purpose Jaw Bucket
By Hydraulics Team
With six decades of experience and hard-earned know-how, Bob Brooks is an expert in residential and commercial site preparation. He began operating equipment at just 14 years old and for the past 40 years, he has owned his own business. He has customers throughout the Puget Sound and keeps his calendar full through strictly word-of-mouth promotions. Over the course of his 60-year career, he has utilized a wide variety of attachments — and nothing used compares to Parker’s Helac PowerGrip® Multi-Purpose Jaw Bucket in regards to productivity. Continue reading.
Pre-compensated Flow Sharing Can Save Money and Boost Productivity
By Hydraulics Team
As multi-tasking becomes more prevalent in today’s day and age -- texting your mother while picking up groceries and simultaneously catching up on your latest podcast after taking your kids to practice -- it is no different with mobile machinery. In the name of increased productivity and output, operators are pushing machines to their limits by using all the oil in the system to support multi-function control. Continue reading.
Orbital Motors Boost Efficiency Across Ag and Construction Markets
By Hydraulics Team
The world of hydraulic motors is vast with numerous motor types available for various applications. To qualify as a hydraulic motor, a motor must utilize incompressible fluid to convert hydraulic pressure into torque and rotation. In applications that require low speeds (generally less than 1000 rpm) and high torques, an orbital-style, gerotor motor stands above the rest. Continue reading.
New Motor and Generator Solution Supports Cleaner Vehicles of the Future
By Electromechanical Team
According to a recent report from global professional services company PwC, over 55% of all new car sales could be fully electrified by 2030. Cars of the future will be electrified, autonomous, shared, connected, and yearly updated, it says, in what represents a new era of flexible mobility. Continue reading.
Electrification Lightens the Load in Heavy Lifting Tasks
By Hydraulics Team
A project involving a Parker EHPS (Electro-Hydraulic Pump System) has underlined the significant advantages of adopting the latest electrification technologies as opposed to traditional industrial combustion engine (ICE)-driven systems for mobile heavy lifting applications. The project, conducted in partnership with a leading global OEM, showed how real-world challenges faced by all design engineers – reducing costs, increasing operational efficiency, and protecting the environment – can be overcome. Continue reading.
New Measuring Device Supports Predictive Maintenance in Construction
By Fluid Gas Handling Team
Predictive maintenance is essential to maintaining the value and the long-term, reliable function of expensive machinery and systems. This can be easier said than done. Systems, equipment, and machinery in industry and mobile hydraulics often have complex designs due to increasing requirements, and error analysis can quickly become extremely costly and time-consuming. Parker SensoControl has the solution to these issues, with its broad range of sensors, measurement connections, and different measurement devices. Continue reading.
Redefining Working Under Pressure with Screw-to-Connect Couplings
By Fluid Gas Handling Team
The performance of heavy equipment and machinery is dependent on the reliability of every component. Whether in the factory or out in the field, the failure of a single mechanical element means downtime for repair or replacement. If the fix requires connecting or disconnecting hydraulic lines under pressure—and without fluid loss—rendering the machine operational presents unique challenges. The solution? Screw-to-connect quick couplings. Continue reading.
Virtual Engineering Improves Efficiency of Hydraulic System Design
By Filtration Team
In industries ranging from manufacturing to off-highway, the efficient management of engineering resources is more important than ever as businesses face the acceleration of customer demand for high output at peak performance and reliability. Engineering teams are continually seeking ways to improve existing technologies and hydraulic systems without diminishing the integrity of their designs. The application of high-fidelity simulations is one way that system design engineers are using technology to produce greater results. Continue reading.
Troubleshooting Leaks: Fixing a Leak Coming From a Tube or Swivel Nut
By TechConnect Team
In our first post of this series, Troubleshooting Fluid System Connection Leaks, we gave an overview of how to troubleshoot a system that’s leaking and the areas to focus on. Now that the leak has been located and the probable causes are narrowed down, what should you do to fix it? In this post, we’re going to take a deeper dive into what “A Leakage From a Tube or Swivel Nut” means and what you can do about it.
When it comes to leaks, you should make no assumptions. Continue reading.
Leading with purpose
After more than a century of experience serving our customers, Parker is often called to the table for the collaborations that help to solve the most complex engineering challenges. We help them bring their ideas to light. We are a trusted partner, working alongside our customers to enable technology breakthroughs that change the world for the better.
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11 Feb 2021
The marine market is especially demanding when it comes to high pressure hydraulic connections. These need to withstand the harshest conditions and vibrations. With classic welded connections there can be a need for post-welding pipe inspection X-raying and cleaning-processes that are time-consuming and costly and sometimes the simply do not withstand vibrations and harsh conditions.
The HPF "Parker High Performance Flange System" from Parker Hannifin High Pressure Connectors Europe is now also certified for the high demanding marine market. High-Performance Flanges contribute significantly to a reduction in assembly time and costs of hydraulic flange connections, as it replaces error-prone and time-consuming welded connections.
The modified product range comes with an upgraded one-piece flange design and qualifies the product for marine markets (marine type approvals DNV/GL, LR).Broad range of sizes
Parker‘s HPF System has been specially designed and developed to meet todays and future requirements of marine, mobile hydraulic and industrial equipment: high performance and high pressure.
The system is generally applicable for working pressures up to 420 bar. But the design opens the door to go even beyond this pressure rating: by choosing a suitable combination of flange, insert and tube the pressure rating can be increased to 500 bar. The System is adjusted to standard tube dimensions with diameters from 25 to 150 mm and wall thickness up to 20 mm. It is designed for flange patterns according to ISO 6162-1 (SAE J518, code 61), ISO 6162-2 (SAE J518, code 62) and ISO 6164.Learning from nature
The best solutions for complex design problems can often be found in nature. The flaring of a tube for HPF is similar to the shape of a branch where it joints the trunk of a tree: The tube is flared by hydraulic axial pressure giving it a parabolic shaping, increasing from 10° up to 37°. The initial gentle incline of the shaping guarantees additional safety against strong system vibrations. The DGUV confirmed the capability of this unique, patented system especially for the use in hydraulic and mechanical presses as well as in hydraulic power systems for injection moulding machines. Beside that, the system is an ideal solution for marine and offshore applications. It is type approved by various classification societies like DNV/GL, LR and others.Special flanging for enormous high-pressure resistance
HPF flanges are equipped with a specially designed and hardened inner grip contour, providing excellent additional tear-off safety for the connection. A soft sealed, shaped insert is placed into the flared end of the tube. The tube side of the insert is equipped with an O-Ring. On the port side the sealing is guaranteed by an O-Ring or by the special profile F37 Seal. The F37 Seal was developed especially for the use with SAE flanges. These special seals guarantee a high form stability. Compared to standard O-Rings, their mechanical properties prevent gap extrusion, even when the flanges “breathe” under pressure. The special profile of the F37 Seal is ideally adapted to higher pressures or unsuitable surface finish of the flanges. The application of these soft-sealing elements both on the port side and tube side guarantees the gas leak tightness of the HPF connector. As the insert does not have a toothed profile, it can be easily assembled repeatdly.Cost advantages over welded systems
Nowadays many tube connections are welded. However, as even the best welding operator may make a mistake, each welding seam has to be tested, leading to an enormous loss of time and a significant cost increase. Even finding trained staffed may be critical. Apart from enormous time savings for the joint preparation itself, High Performance Flanges offer various advantages compared to the welding solution:
Personnel and environment-friendly
By comparing the individual operations for a welded line with Parker flanges connected lines, significant cost savings opportunities become immediately obvious. No vapours putting health at risk are released, in contrast to conventional welding processes. Consequently, usage is possible in locations with high requirements such as, for example, offshore oil platforms. In addition to this flaring machine design errors in the preparation of flanges are virtually unknown. Stress corrosion cracking generated during welding operations is history and the life of the finished tubing system is increased. Cold formed Parflange® technologies save power and energy compared to welding and require neither degreasers nor anti-corrosion agents. When galvanized tubes are used, post-galvanization can be omitted because the zinc-coating is not impaired by flaring. Parker flange connector components are delivered in state of the art Cr(VI)-free surfaces.For series production and modernization: complete service from one source
HPF hydraulic connections are not only at home in series production. In modernization and maintenance projects they serve as cost-saving, durable replacements for welded systems.
Of particular interest to project managers is the fact that Parker offers its customers complete solutions for hydraulic piping systems: Parker's "Piping Solutions" modules can include the piping layout, drawing design and documentation, the preparation of hydraulic lines in terms of pipe bending, flanging and cleaning up to installation. The service ranges from on-site construction management and assembly to testing, flushing and documenting the entire system.
This eliminates the need for time-consuming coordination of different contacts and projects can be realized much faster. Learn more about Parker's High Performance Flange System.
Article contributed by Thomas Rüdiger, product unit manager (piping), High-Pressure Connectors Europe Division, Parker Hannifin Corporation
10 Feb 2021
When truck and trailer OEMs select DOT air brake fittings, a number of considerations frequently come into play including performance, price, assembly time and the ability to customize to their specifications. Another important consideration is the type of thread pattern utilized on the port-ends of DOT air brake fittings. There are two main types of thread patterns typically offered on-air brake fittings, American National Standard Taper Pipe Threads (NPTF) and the straight thread O-ring (STO). Within the heavy-duty trucking industry, pipe threads are a known source for warranty claims. Find out why straight thread O-Ring fittings provide a more reliable seal.The challenges of pipe threads
Straight thread O-Ring (STO) fittings originally started in the hydraulic industry as a more reliable replacement for traditional pipe threads. Pipe fittings, or NPTF, feature tapered threads providing the mechanical strength needed to hold the joint together as well as provide the sealing of the connection. Pipe threads require the use of a thread sealant to create a proper seal. This can lead to several issues that will result in leakage. Inconsistent application of thread sealant can lead to leaks and correct application of the thread sealant can be problematic. Pre-applied thread sealant overcomes many of these challenges but is not without its own concerns.
Because pipe threads seal metal-to-metal, there can be some damage to the mating parts. The can lead to damage of either the female or male threaded part, resulting in an inability to remake the connection without leakage and requiring a replacement of one or both components.
Within the heavy-duty trucking industry, pipe threads are a known source for warranty claims. Many air brake system components, such as brake valves and air tanks, utilize NPT threaded ports. Air tanks are manufactured by machining the ports and then projection welding these to the air tank. The welding process can cause distortion to the threads during the heating and cooling of the welding process. When a pipe thread is installed into a port with distorted threads, a proper seal can be hard to achieve. A poor fit will result in air leakage. In addition, backing out the pipe thread to change position can cause issues. This is easily remedied with an STO fitting.A more reliable alternative
STO fittings have a male straight thread used to connect and hold the fitting in a female straight threaded port. The threaded connection does not act as a sealing mechanism. Instead, an elastomeric seal or O-Ring is utilized to create the seal and is able to compensate for most variations in the threads of the port. STO fittings are recommended to be assembled to a torque value to ensure accuracy of the seal, which is beneficial for consistent leak-free assembly in the current manufacturing environment.
Pipe threads have been around for many years and are functional. However, in today’s global market place the drive to automate and eliminate variability in products makes the STO fitting a preferred option.
The various types of STO fittings frequently used in the truck market include:
As OEMs continue to eliminate pipe threads from their specifications in order to align with the global industry, this brings up another point. Metric port-ends may be becoming a standard, but the North American trucking industry continues to use imperial size tubing. Converting from a metric port-end to an inch push to connect tube end has generally required the use of an adapter, adding an additional cost. Parker has manufactured one of the only metric STO to inch push to connect DOT rated fittings in the market place to alleviate this issue, eliminating the need for one-off connectors or similar solutions with smaller, less reliable seals.
Parker’s new Push-to-Connect Metric Straight Thread O-Ring fitting is certified to ISO 4039-2 and meets or exceeds D.O.T. FMVSS571.106 and SAE J2494-3 standards for truck and trailer applications. Now available in 1/4”, 3/8”, 1/2” and 5/8" inch tube diameters and MA12, MA16 and MA22 thread studs in straight, 45 Degree Elbow, and 90 Degree Elbow configurations.
If you are looking for a more reliable alternative to pipe threads, Parker can help. Request a sample of the new PTC Metric Straight Thread O-Ring Fitting or locate your nearest Parker distributor to find out more about our full range of STO fittings.
See how Parker is going the extra mile for the transportation industry. View the video now.
Article contributed by Samantha Smith, marketing services manager, Fluid System Connectors Division, Parker Hannifin Corporation.
New Testing Results Give Way to Changing Specifications for Engine OEMs
9 Feb 2021
Fitting and adapter connections in hydraulic systems
In manufacturing and warehouse operations, forklifts are an indispensable piece of equipment. Responsible for safely and reliably lifting and transporting materials, the heart of these machines is their hydraulic systems. These systems demand high-pressure, leak-free fluid connections to ensure proper operation and performance.
Hydraulic systems rely on a variety of components to transfer the fluids efficiently and effectively. Among these are tube fittings and adapters which connect tube and hose throughout the system through which the hydraulic fluids run. Though smaller components, these tube fitting and adapter connections are key for preventing leaks and ensuring the hydraulic system performs as needed. Forklift manufacturers often look to O-ring Face Seal (ORFS) tube fittings and adapters for these critical connections.
This high-pressure fitting design offers:
Not all ORFS fittings are created equal
Though the ORFS fitting design is more reliable than metal-to-metal seal fitting styles, issues can still occur leading to warranty claims for the OEM, and costly leaks and downtime for the end user.
The two potential issues with the ORFS design are:
O-ring fallout: This can happen during transit, storage or assembly. When an ORFS fitting is assembled without an O-ring, the key sealing mechanism, the connection will leak. Sometimes the missing O-ring is caught, but not always. Either way, it adds to the time needed to assemble (or reassemble!) your connection.
O-ring pinch: Caused when an O-ring partially pops out of the groove and is pinched outside of the groove during assembly, O-ring pinch compromises the connection seal and can cause leaks.
Parker’s engineers have worked closely with customers to enhance our Seal-Lok ORFS fittings and adapters to eliminate these potential issues and extend the fittings’ capabilities. As a result, Seal-Lok’s Trap-Seal™ technology was created to proactively protect against O-ring fallout and pinch. The trapezoidal-shaped seal sits snugly in Seal-Lok’s ORFS captive O-ring groove (CORG) ensuring improved retention and providing maximum assurance for leak-free connections.
Preventing warranty claims, and costly downtime due to leaks
As said, while fittings and adapters may seem like a small component in the hydraulic system, they are key for ensuring the hydraulic system performs as required. When costly leaks occur due to fitting and adapter connection issues, it means warranty claims for the OEM, and costly downtime to the end user. Using the optimal ORFS fitting design will not only ensure that the fittings and adapters can withstand the high-pressures, high vibration, and potential high mechanical shock of the forklift’s hydraulic system, but when using the Seal-Lok ORFS fittings and adapters with Trap-Seal it will also ensure leaks from O-ring fallout and O-ring pinch will not happen. View the Seal-Lok fitting and adapter product line now, or check out the Seal-Lok website to learn more about Trap-Seal and the other Parker design advantages. Fitting and adapter assembly videos and other resources can also be found on this site.
Have any tube fitting and adapter questions? Refer to our Tube Fittings Division Frequently Asked Questions page, www.parker.com/tfd-faq, for a wealth of information and resources.
Looking for technical information, assembly hints, and concise help on hydraulic fittings and adapters? Check out our engineer to engineer support blog at www.tfdtechconnect.com
Contributed by Wendy Davison-Moore, marketing services manager at Parker Tube Fittings Division
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4 Feb 2021