Soft Seat Relief Valves (Factory Set)
Relief valves are offered in pressure ranges: 1,500 through 25,000 psi.
Standard materials include 316 stainless steel bodies and removable seat glands with 17-4PH stem and seal ring. Standard O-ring material on the stem is Viton. The seat material is Peek. Valves may be used up to 400°F with standard Vtion O-ring or 450°F with the Kalrez O-ring option.
Inlet connections are for 9/16" O.D. tubing (HF9) with adapters for other sizes available. Outlet connections are 1/2" NPT. These valves are not recommended for use below 1,500 psi, and are not readily adjustable in the field without proper test equipment. Pressure settings are made at the factory and valves are tagged accordingly.
To order, simply specify catalog number and set pressure.
- Soft Seat - Catalog Number: 602923
- Minimum Temperature: 0°F
- Max temperature up to 10,000 psi is 300F
- For set pressures between 10,001 to 25,000 psi the Maximum Temperature with standard Viton O-ring: 400°F
- For set pressures between 10,001 to 25,000 psi the Maximum Temperature with Kalrez O-ring: 450°F
CE Marked Relief Valves
HiP relief valves are now available with CE marking. These products will proudly be marked with the CE symbol, signifying they comply with the stringent requirements of the Pressure Equipment Directive (PED). To order, add -CE to your relief valve part number.