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DQC HS-Series ISO-B Steam Interchange Female Coupler

DQC HS-Series ISO-B Steam Interchange Female Coupler

Part Number 3HSF3-B
Material Brass
Thread Female NPTF
Thread Size 3/8"-18
Maximum OD 1.73" (43.9mm)
Body Size 3/8"
Hex 7/8"
Length 2.51" (63.8mm)
Pressure Rating Rated to 200 PSI gauge saturated steam 382°F (194°C)
Temperature Range -70°F to +400°F (-57°C to +204°C)
Weight Lb 0.4600


  • Designed exclusively for steam applications


  • Machined components are manufactured using solid bar stock
  • Stainless steel balls, retaining rings and springs maximize corrosion resistance and extend service life.
  • Coupler has a large plated steel sleeve designed for easy gripping with gloves
  • Steel componentry is plated using ROHS Compliant Trivalent Chrome.
  • EPDM steam-grade seals are standard
  • Couplers have a redundant O-ring sealing system (Dual O-rings with PTFE back-up)
  • Valve seals are crimped in place to maintain integrity during excessive flow conditions.
  • Special high-temp EPDM O-rings designed for steam service

Compatibility & Interchange Data

  • Interchangeable to ISO7241 Series 'B'
  • Parker 60-Series Steam Couplings

Safety notes

  • Maximum working pressure has been calculated using standard saturated steam at 194°C (382°F) for general purpose continuous service. For advanced operating pressure or super-heated steam applications, contact Dixon for further information.
  • Warning: Do not disconnect under pressure!


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