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Posted by Fluid Gas Handling Team on 19 Nov 2018
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.
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 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.
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.
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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.
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.
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 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.
The FEM Series | 71 Series | FS Series 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 Anthony Mistretta, product sales manager, Quick Coupling Division, Parker Hannifin Corporation.
Screw-to-Connect Couplings Make Hard Work Easier
Oil Changes Are Not So Traditional with QuickFit
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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