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High Pressure Relief Valve


1/8” - 3/4” NPT
10 - 2400 Psig

Description

The HPRV Series Relief Valve provides accurate crack pressure with zero leakage up to 98% of nominal set pressure. When properly specified, this factory preset, tamper proof design, is ideally suited for most any liquid or gas application. Encapsulating the o-ring seal within the poppet eliminates seal extrusion and cold flow characteristics. By guiding the poppet into the body, a line of contact seal is ensured and at high crack pressure settings, the o-ring is protected by a metal-to-metal stop between the poppet and the body. High flow design, combined with narrow band interchangeable springs, minimizes system pressure rise as flow demand increases. Available in brass or stainless steel and inline or discharge to atmosphere. Valves can be supplied with a manual pull ring override.

Features

  • 100% Factory Preset and Tested
  • Zero Leakage to 95 - 98% of Set Pressure
  • Tamper Proof Adjustment
  • Excellent Reseal Performance

Technical Data

  • Set Pressure Range: 10 to 2400 Psig (0.7 to 166 bar)
  • Set Pressure Tolerance: Factory Preset +/– 5% on increasing pressure
  • Reseal: Elastomer Seals 90% - 95% of Actual Crack Pressure
    • PTFE may be slightly lower
  • Inline Valves (Series HPRV):
    • Proof Pressure: 3700 Psig (225 bar)
    • Burst Pressure: >5000 Psig (345 bar)
  • Temperature Range: -320°F to 400°F (-220°C to 205°C)
    • Based on seal selection, see ordering information

Materials of Construction

Dimensional Data



Flow Data



Ordering Information

PROPER COMPONENT SELECTION - When specifying a component, the total system design must be considered to ensure safe and trouble-free performance. Intended component function, materials compatibility, pressure ratings, installation, environment and maintenance are the responsibility of the system designer.

For Instructions on How to Select Your Model, click here.

HPRV - Low Pressure (Valve Set Pressure: 0 - 450 PSIG)
ModelSizeFile TypeDownload
HPRV-1251/8" NPTSTEP Download
HPRV-2501/4" NPTSTEP Download
HPRV-3753/8" NPTSTEP Download
HPRV-5001/2" NPTSTEP Download
HPRV-7503/4" NPTSTEP Download

HPRV - High Pressure (Valve Set Pressure: 450.1 – 2400 PSIG)
ModelSizeFile TypeDownload
HPRV-1251/8" NPTSTEP Download
HPRV-2501/4" NPTSTEP Download
HPRV-3753/8" NPTSTEP Download
HPRV-5001/2" NPTSTEP Download
HPRV-7503/4" NPTSTEP Download

HPRVA - Low Pressure (Valve Set Pressure: 0 - 450 PSIG)
ModelSizeFile TypeDownload
HPRVA-1251/8" NPTSTEP Download
HPRVA-2501/4" NPTSTEP Download
HPRVA-3753/8" NPTSTEP Download
HPRVA-5001/2" NPTSTEP Download
HPRVA-7503/4" NPTSTEP Download

HPRVA - High Pressure (Valve Set Pressure: 450.1 – 2400 PSIG)
ModelSizeFile TypeDownload
HPRVA-1251/8" NPTSTEP Download
HPRVA-2501/4" NPTSTEP Download
HPRVA-3753/8" NPTSTEP Download
HPRVA-5001/2" NPTSTEP Download
HPRVA-7503/4" NPTSTEP Download

HPRVM - Low Pressure (Valve Set Pressure: 0 - 450 PSIG)
ModelSizeFile TypeDownload
HPRVM-1251/8" NPTSTEP Download
HPRVM-2501/4" NPTSTEP Download
HPRVM-3753/8" NPTSTEP Download
HPRVM-5001/2" NPTSTEP Download
HPRVM-7503/4" NPTSTEP Download

HPRVM - High Pressure (Valve Set Pressure: 450.1 – 2400 PSIG)
ModelSizeFile TypeDownload
HPRVM-1251/8" NPTSTEP Download
HPRVM-2501/4" NPTSTEP Download
HPRVM-3753/8" NPTSTEP Download
HPRVM-5001/2" NPTSTEP Download
HPRVM-7503/4" NPTSTEP Download