Griffco Unibody Relief Valves
EnglishChinese (Simplified)FinnishFrenchGermanItalianJapaneseKoreanPortugueseSpanishTurkish
Griffco’s new Unibody pressure relief valves (leak-free relief valves) is the latest innovation to ensure leak-free connections and operation. This new design allows flexibility of changing connection types, provides ease of maintenance, and eliminates additional system components (extra unions) saving time and money. As with all of the Griffco designs, the chemical feed system is safeguarded by applying a continuous back pressure to the chemical feed pump, while also acting as an anti-siphon valve. This new construction ensures increased leak-free reliability in the rigorous service of municipal and industrial applications.
Griffco Unibody Relief Valves

2 Year Warranty

Valve Features

  • Solid, robust, single-piece machined construction
  • No seals or glued connections
  • Anti-siphon function
  • Available in PVC and CPVC
  • Union style connections
  • Molded Noryl top with integral hardware locking
  • Vulcanized composite PTFE/EPDM diaphragm
  • Adjustable up to 150 psi (10 bar)
  • 4 optional pressure ratings (springs)
  • Valve sizes from 1/2" to 1" or DN 15 to DN 25
  • Tamper-resistant adjustment screw

Griffco Benefits

  • Compact size for OEM applications
  • High reliability at affordable price
  • Multiple diaphragm material options
  • Long diaphragm life
  • Two year warranty

Available Sizes

  • 1/2" to 1" or DN 15 to DN 25

Wetted Materials

  • PVC
  • CPVC

Unibody PRU - Specifications

Unibody PRU - Documents

TitleDescriptionDate modifiedDownload
Data Sheet PRU (US) Imperial09-14-2020 Download
Data Sheet PRU (Intl) Metric09-14-2020 Download

Unibody PRU - Dimensional Drawings

Unibody M Series 2-Port @ 180° (1/2") (DN 15)

TitleDescriptionDate modifiedDownload
Dim PRMUB 2Port@180 Union US 1/2"08-24-2020 Download
Dim PRMUB 2Port@180 Union Metric DN 1508-24-2020 Download

Unibody PRU - Sectional Drawings

TitleDescriptionDate modifiedDownload
U001 08-26-2020 Download
Share on linkedin
Share on twitter
Share on facebook

Find Your Local Distributor

Locate an authorized Griffco Valve distributor that can provide you with sales, customer service, and technical support.

Try our New Pulsation Dampener Calculator

Protect your pumping system with the correct size Pulsation Dampener from Griffco Valve. Use the Griffco Pulsation Dampener Calculator.