Valcor Engineering Corporation

Missiles & Space Quick Disconnects


Valcor’s Quick Disconnect couplings are designed for demanding aerospace applications where the ability to quickly disconnect and reconnect system control lines is critical. They are well-suited for the extreme vibration, temperature, and high pressure requirements found in the most severe launch vehicle and spacecraft operating conditions. The couplings are designed to minimize in-service flow restrictions and liquid loss during the decoupling process. Once decoupled, the dual shutoff couplings seal off both lines to prevent system depressurization and loss of media. Valcor QDs are engineered to order based on customer specifications.


The QDs are typically used on lines for fuel, hydraulic fluid, rocket propellant and pressurization gases and liquids, that require the temporary separation of process lines.

Design Features and Benefits

  • Maximum Operating Pressure: Up to 3,000 PSI
  • Line Size: From 1/2” to 8”
  • Leak rate: Internal: 0 cc min liquid, 10 cc/hr gas; External: 0 cc/min at 3000 PSIG
  • Wetted Materials: CRES, Titanium, Zirconium, Aluminum
  • Fully customizable for your application