4STOF4 - ST-Series Heavy Duty Flushface Female Threaded Coupler

• 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

Interchangeable with Snap-Tite 71-Series

• 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 (Nitrile Rubber) seals are standard
• Incorporates PTFE anti-extrusion rings to protect seal components from dynamic impulse damage.

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.