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SAF-T-FLO Industries, formally Martin Special Products, has been manufacturing high quality mil spec. self-sealing quick disconnect couplings since 1978.

Major programs include, F/A-18 Fuel Coupling, Textron LCAC Hydraulic System Coupling, and Minuteman Missile Coolant System Coupling.

Design engineers and maintenance personnel will find these units are perfect for applications requiring the performance specifications of AS25427 (formally Mil-C-25427).

Coupling Assembly

The self-sealing quick disconnect coupling assembly consists of a coupling half (female half) and a nipple half (male half). Each half instantly seals upon disconnection and instantly opens to flow upon connection. The coupling half (female) typically connects to a hose assembly. The nipple half (male) most often attaches to a pump, bulkhead, or reservoir.

Push-Pull Design

All sizes feature the “push-pull” design. This feature means all sizes of the quick disconnect couplings are easily connected and disconnected. Even the largest sizes do not require mechanical assists to connect. You can disconnect the assembly under far higher pressures than required by AS25427.

Versatility

SAF-T-FLO quick disconnect couplings can easily be modified to meet almost any operating requirement. When positive, non interchange of couplings is mandatory, the quick disconnect couplings can be supplied with “keys” to assure preferential mating and eliminate cross connection.

Standard Features

  • •  Sizes: -4,-6,-8,-10,-12,-16,-20
  • •  Available in Stainless Steel, Aluminum, or Titanium materials of construction.
  • •  Valve stem for the coupling and nipple unit features a bonded elastomeric seal.
  • •  “Grip Lock” Locking System
  • •  Mils Spec. seal compounds for all fluid systems, including hydraulic fluids, jet fuels, lubricant, and coolants.
  • •  Class 600 (Aluminum) and Class 3,000 (Stainless Steel) pressure ratings
  • •  Self Aligning, Push-Pull Design

Optional Features

  • •  Dust Caps for Male Couplings.
  • •  Pressure Cap for Male Coupling.
  • •  Dust Plug for Female Coupling.
  • •  Special “keys” for preferential mating.
  • •  Special “locking feature” to prevent unwanted release

Aerospace Standard (AS) Requirements:

All sizes of SAF-T-FLO quick disconnect couplings meet the requirements of AS25247, class 600 (600 psi) and class 3000 (3,00 psi) for hydraulic, self-sealing, quick disconnect. Performance requirements include the following:

  • •  Hand Operation
  • •  Extreme Temperature Functioning
  • •  Proof Pressure
  • •  Leakage
  • •  Pressure Drop
  • •  Vacuum
  • •  Surge Flow
  • •  Impulse & Vibration
  • •  Endurance
  • •  Manual Operation
  • •  Air Inclusion
  • •  Impact
  • •  Burst Pressure
  • •  Flange Strength