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DQC ST-Series Snap-Tite 71 Interchange Female Coupler

DQC ST-Series Snap-Tite 71 Interchange Female Coupler

Part Number 8STBF8
Material Steel
Thread Female BSPP
Thread Size 1"-11
Maximum OD 2.73" (69.3mm)
Body Size 1"
Hex 2"
Length 3.33" (84.6mm)
Maximum Operating Pressure 7500 PSI (500 bar)
Burst Pressure 19400 PSI (1300 bar)
Temperature Range -40°F to +250°F (-40°C to +121°C)
Optional Pkg/Box Qty 1
Weight Lb 2.8400


  • Machined components are manufactured using solid bar stock
  • Stainless steel balls, retaining rings and springs maximize corrosion resistance and extend service life.
  • Steel componentry is plated using ROHS Compliant Trivalent Chrome.
  • Steel coupler sleeves are hardened to resist deformation and maximize service life.
  • Nitrile (Buna-N) seals are standard
  • Incorporates PTFE anti-extrusion rings to protect seal components from dynamic impulse damage.

Available Options

  • Contact Dixon for all available option adders
  • Standard seal options include: FKM, EPDM, Mil-Nitrile and Fuel Nitrile
  • Kalrez® seal options include: 4079, 6375 and 7075
  • Oxy-clean treatment is available

Compatibility & Interchange Data

  • Interchangeable with Snap-Tite 71-Series


  • Minimum burst pressure ratings were established under laboratory conditions using a Static Burst Unit (SBU). For high impulse applications and to meet Det Norske Veritas (DNV) compliance, the burst pressure must be divided by four (4) to ensure a 4:1 safety factor during system operation.

Repair Kits
Part # Description Includes Item # Qty
8ST-SKIT Two Nitrile Seals and Anti-Extrusion Rings

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Stock Availability