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Features
  • Very accurate cracking pressure
  • Zero leakage up to 95% of cracking pressure
  • 100% seat leakage tested
  • Tamper-proof adjustment
  • PED certifications and CE marking available for most models
Unit of Measure
Items
Circle Seal Pressure Relief Valve HP500 Series

High Pressure Popoff Relief Valves

Circle Seal Pressure Relief Valve HP500 Series

High Pressure Inline Relief Valves

Circle Seal Pressure Relief Valve HP500 Series

High Pressure Popoff Relief Valves

HP500 Series Relief Valve

High Pressure Inline Relief Valves

Circle Seal Pressure Relief Valve HP500 Series

High Pressure Popoff Relief Valves
Series N/A HP500
Type N/A Relief Valve
Body Material N/A Brass
O-Ring Material
N/A Viton® N/A Viton® N/A Viton® N/A Viton® N/A Buna N
Valve Size N/A 1/4 in N/A 1/4 in N/A 1/2 in N/A 1/2 in N/A 1/4 in
End Connections (Inlet/Outlet) N/A Popoff male pipe N/A Inline male pipe by female pipe N/A Popoff male pipe N/A Inline male pipe by female pipe N/A Popoff male pipe
Operating Pressure N/A 150 to 575 psig10 to 40 bar N/A 150 to 575 psig10 to 40 bar N/A 150 to 450 psig10 to 31 bar N/A 150 to 450 psig10 to 31 bar N/A 150 to 575 psig10 to 40 bar
Cracking Pressure Tolerance N/A ±5%
Operating Temperature N/A -20 to 400 ºF N/A -20 to 400 ºF N/A -20 to 400 ºF N/A -20 to 400 ºF N/A -65 to 275 ºF
Spring Material N/A 17-7 PH Stainless Steel
Dim. A N/A 1.17 in N/A 1.92 in N/A 1.91 in N/A 2.63 in N/A 1.17 in
Hex N/A 5/8 in N/A 3/4 in N/A 1 in N/A 1.125 in N/A 5/8 in
Weight N/A .06 lbs N/A .16 lbs N/A .27 lbs N/A .6 lbs N/A .06 lbs
Optional Body Material N/A 316 Stainless Steel Brass
Optional End Connections N/A 1/4" Male BSPT x 1/4" Female BSPT M - Male NPT



307 Derstine Ave, Suite 204 | Lansdale, PA 19446 | Phone: 267-933-6300 | Fax: 267-933-6305 | Toll Free: 800-645-6733 | Email: [email protected]
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