HQC Series Instrument Quick Couplings

Hoke HQC Series Quick Couplings

Typical Applications

  • Laboratories
  • University labs
  • Gas distribution
  • Biopharmaceutical

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Features & Benefits

  • Leak tight sealing is achieved through multiple o-ring seals located in the couplers. Buna-N is standard in brass and Viton® is standard in 316 stainless steel.
  • Poppet valves with dependable, integral o-ring seals are standard in coupler and plug in double end-shutoff applications. In single end-shutoff applications, the poppet valve is installed in the body half.
  • Valve guides align valves exactly to the coupler’s valve seat preventing chance of leakage when in a disconnected mode.
  • Locking mechanisms in bodies provide smooth positive sleeve engagement. A firm grip of the plug portion of the coupling assembly is assured with HOKE’s Xylan®-coated stainless locking tabs.
  • 316 stainless steel springs: all springs are constructed from 316 material.
  • GYROLOK® nut and ferrule system provides leak-tight end connection.
  • Keyed sleeves for all sizes
  • HOKE HQC Series quick couplers are interchangeable with Swagelok®, Parker®, and TOMCO® components of the same style.
  • Special High Tolerance NPT Thread

Technical Data

Construction Brass or stainless steel
Nominal Flow Sizes 1/4″, 3/8″, 1/2″
Maximum Operating Temperature 3600 psi
Cv Factors 0.31–1.86




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