Non-latching automatic self-sealing and Thread-Lok Quick Disconnect (QD) valved hose couplings are manufactured by the Stratoflex Products Division of Parker Hannifin Corporation.

Automatic couplings are recommended for use with today's advanced precision fluid systems for space flight, aircraft, ground and undersea applications. Stratoflex non-latching automatic self-sealing couplings are designed for use in diverse applications like electronic cooling systems, hydraulic accumulators/cylinders, brake systems, manifolds, vapor cycle and cryogenic systems. Automatic couplings are best utilized where space is limited, and hands off operation is required. Small envelope, high performance and unsurpassed reliability are key features of Stratoflex non-latching couplings. Available in different tube sizes, from sub-miniature to one inch in aluminum alloy, stainless steel, titanium and other exotic materials. They meet SAE Aerospace Standards AS4251,AS5072/1/2/3.

The Parker Stratoflex’s Thread-Lok Quick Disconnect (QD) valved couplings provide a proven solution for fluid conveyance systems  for aerospace and derivative markets when envelope and weight are important and robust performance is critical. Applications range from hydraulic, fuel, and cooling systems to pneumatic, air data systems, landing gears, wheel and brakes hydraulic fluid motors, military ground vehicles and space applications. Their respective Thread-Lok Ground Service Equipment (GSE) Quick Disconnect (QD) couplings are intended for use with fluid conveyance systems providing a robust connection for ground service equipment to the aircraft flight systems. The Thread-Lok QD is used in a wide range of pressure and temperature applications.

They integrate a highly reliable and robust positive locking mechanism to ensure the performance needed in difficult aircraft system environments such as the engine nacelle, landing gear and brake systems, and other QD demanding installations . The Thread-Lok QD couplings can be used in a wide range of pressure and temperature applications while they provide a simple one-hand operation to thread the QD halves together with a visual confirmation of proper and full coupling to improve both time and safety. 

The Thread-Lok QDs incorporate tang and slot design, with QDs engaging and locking in one position when the coupling halves are threaded together and fully connected, providing both visual and touch indication of the fully connected position. They use Parker’s efficient, self-sealing valve design that permits fluid flow with minimum pressure loss and turbulence.

Available in different tube sizes, from ¼ to one inch. Their stainless steel construction meets typical electrical bonding requirements.They meet or exceed MIL-C-25427 and AS1709 specifications.

For additional information please consult the Product Description section, the supplied documentation or contact us.

The  PARKER HANNIFIN (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies in different outside diameters (OD), hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. 

PARKER HANNIFIN Stratoflex rubber and PTFE hoses with various reinforcements and covers are briefly presented in the Product Description section with reference to their features and specifications. Offered in different sizes (tube and hose ODs) in inches and lengths in feet unless otherwise stated. Suitable fittings for use with Stratoflex hoses are separately presented. For additional information please refer to the attached Stratoflex catalogs for offered hoses, fittings and assemblies or contact us.

The  Parker Aerospace (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies, hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. 676 Series are straight fittings  for use with Stratoflex 156 hoses. They come in different outside diameters (OD) and thread sizes in inches. Please refer to the attached Stratoflex catalog for offered hoses and fittings or contact us.

The  Parker Aerospace (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies, hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. 680 Series are 90º elbow flared fittings  for use with Stratoflex 156 hoses. They come in different outside diameters (OD) and thread sizes in inches. Please refer to the attached Stratoflex catalog for offered hoses and fittings or contact us.

The  Parker Aerospace (Stratoflex Products Division) offers a broad array of PTFE, rubber and metal hose and hose assemblies, hose fittings, rigid tube assemblies, couplings, quick disconnects, swivel joints, fuel break-away valves, hydraulic fuses, and flow regulators, and specialty fittings including permanently swaged and welded fittings suitable for virtually any aerospace application. Parker  300/312 Series are straight flared fittings while those of  646/640 Series are 45º elbow flared fittings, both field attachable and intended for use with Stratoflex 111 hoses. They come in different outside diameters (OD) and thread sizes in inches. Please refer to the supplied documentation on offered Stratoflex hoses and fittings or contact us.