Dry disconnect couplings are used in bulk fluid transfer because of a closing mechanism that eliminates spillage. Quick couplings allow for easy and immediate connection and removal of pipes, hoses and nozzles and provide a way to close off the line using seals and valves inside the assembly.
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Parker/Snap-titeErie, PA 814-438-3821 Snap-tite joins the Parker family to create one of the world's strongest brands of Quick Connect Couplings. We produce hydraulic & pneumatic couplings in a variety of sizes, materials, and end configurations to accommodate a broad spectrum of design requirements. In addition to Quick Couplings, our product offering includes Hydraulic Swivels, Check Valves, & state-of-the-art Diagnostic Equipment.
Clippard Instrument Laboratory, Inc.Cincinnati, OH 877-245-6247 Clippard Instrument Laboratory has been a leading manufacturer of precision dry disconnect couplings since 1941. Our extensive product line includes sub-miniature fittings, inline fittings, threaded fittings, and much more. Besides our vast experience, prompt service and high quality parts, we also offer value added services such as design, testing and assembly.
SAF-T-FLO IndustriesAnaheim, CA 800-957-2383 Discover SAF-T-FLO Industries` dry disconnect couplings, readily modified for virtually all requirements. Since 1978 we have been manufacturing high quality products. Our assemblies are consistent with the top performance specifications including military standards. We offer dust caps, dust plugs, fitting ends and male and female halves separately or together in an assembly.
Stäubli CorporationDuncan, SC 800-845-9193 Stäubli provides high performance dry disconnect couplings for all types of fluids, gases and electrical power. As a leading manufacturer in the industry, we offer a range of products from standard to custom multi-coupling systems. Our products provide safety and ease of use for systems containing compressed air, natural gas, liquefied petroleum, electrical circuits and more.
FasTest® Inc.Roseville, MN 800-444-2373 All FasTest products are designed to speed manufacturing processes by improving your speed, productivity, quality and safety. We offer a complete line of fast, safe and reliable quick connectors for pressure and leak testing, procession utilizing fluids or vacuum, medical devices, appliances, automotive manufacturing and heavy duty hydraulic equipment.
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Dry disconnect couplings are designed to permit a good flow rate through the hose and fixed pipe, even for high viscosity fluids. If the coupling is disconnected while the product is still flowing, an automatic shut-off mechanism closes and completely seals off both ends, allowing a minimal amount of spillage. This is advantageous when exposure to the material could be harmful to personnel or the environment. The drip-free design prevents spills and costly clean-ups in addition to retaining most of the product. Dry disconnect couplings are typically made from Type 316 stainless steel, though aluminum can also be used. They are widely used in many applications, especially where the fluids are hazardous, toxic, corrosive or flammable. They facilitate fluid transfer including loading and unloading rail cars, trucks and intermediate bulk containers (IBCs) as well as portable containers used in plants and factories. These couplings also aid in switching or redirecting fluid flow. Dry disconnect couplings are widely used in chemical plants, but they also are used in the pharmaceutical, agricultural, automotive and waste water treatment industries. They can be used to help change colors on a paint line, refuel a train engine or to drain a vat of pesticide.
Like all couplings, dry disconnect couplings are comprised of male and female components (also called couplers and adapters) that fit together for a tight connection and seal. A dry disconnect is achieved through use of an interlock system that will not allow the coupling to be separated while the valves inside are open. When an operator lifts and rotates the interlock arm, the valves inside instantly snap shut, avoiding product loss or contamination. Spring-loaded cylinders called poppets and butterfly valves are most common, though interlocked ball bearing systems are also available. Sensors are available that alert the operator if the wrong coupling and hose are attached in order to prevent a mix-up and avoid costly mistakes or dangerous combinations of material. Breakaway couplings are very similar to dry disconnect couplings, except that they are built to respond to accidental removal. Breakaway couplings disconnect when a certain level of force is applied, such as when a truck begins to pull away while the loading arm is still attached. Quick disconnect couplings, including dry disconnect couplings, respond to manual removal; many rely on the action of the rotating or turning interlock system to trigger the valves to close. Valves and seals vary in their degree of quality and ability to shut off the line; this greatly depends on the intended application and the material that is being transported.
