Technical Specialties

High Pressure Relief Valve

Select Set Pressure Range (PSI):

(Max 25 Characters)
Call/Email For Pricing

High Pressure Equipment Factory Set Relief Valve


Available in pressure ranges 1,500PSI through 60,000PSI


Standard materials include 316 Stainless Steel bodies and removable seat glands with 17-4PH stainless steel removable seats and pistons


O-ring: material on the piston is Viton Valves may be used up to 350F


Inlet Connection: 9/16" O.D. tubing with adapters for other sizes available


Outlet Connection: 1/2" NPT


These valves are not recommended for use below 1,500PSI, and are not readily adjustable in the field without proper test equipment.


Pressure settings are made at the factory and valves are tagged accordingly


Valves are not bubble tight on gas service


To order simply specify catalog number ans set pressure


Pressure Range Orifice Size Type Of Service Part No. Max Flow Capacity H2O
1,500 to 2,999 psi 1/4" Gas or Liquid 402633-03 13 (GPM)
3,000 to 10,999 psi 1/4" Gas or Liquid 402633-10 25 (GPM)
11,000 to 20,999 psi 3/16" Gas or Liquid 402633-20 20 (GPM)
21,000 to 30,000 psi 1/8" Gas or Liquid 402633-30 10 (GPM)
30,001 to 45,000 psi 7/64" Gas or Liquid 402633-45 10 (GPM)
45,001 to 60,000 psi 3/32" Gas or Liquid 402633-60 8 (GPM)


For pricing and availability of alternate relief valves call us at 1-888-343-3778 or e-mail