(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-KBFTQ5D'); Pilot Operated Relief Valve - Groth Corporation


Pilot Operated Relief Valve

The Groth Models 14E and 14F Pilot-Operated Relief Valves are used to replace weight-loaded or spring-loaded valves in many applications to increase efficiency and reduce evaporation losses. Several advantages are obtained over the traditional valves. For example, the process pressures may be closer to the set pressure than would be considered prudent and safe with the traditional valve. Additionally, greater conservation is obtained due to minimum product loss which in turn provides increased profits.

• Ease of precision settings
• Only the pilot needs to be set
• Lower profile and weight than spring operated models for high settings
• Remote pilot sensing option allows the pilot to sense the true system pressure
• Remote or manual blowdown available
• Main valve remains tight to set pressure
• Flow capacity available at 10% overpressure
• Modulating action conserves product (available on most settings, consult factory)
• Top entry allows valve to be serviced without removal from mounting

Technical Details

• Size: 2” (50mm) through 10” (250mm)
• Body Material: Aluminum, Carbon Steel, Stainless Steel
• Pallet Material: Aluminum (Vacuum Only), Stainless Steel
• Diaphragm Material: Buna-N, Blue FKM or FEP
• Weight Material: Zinc-Plated Carbon Steel or Stainless Steel
• Bolting Class: 150# ASME, PN10, PN16
• Pressure Settings: 7.0 InWC (17.5mbar), [8.0 inWC (19.9 mbar) for 2” sizes] to 15 psig (1034 mbar)
• Vacuum Settings: 0.80 InWC (2.0 mbar) to 1.5 psig (103mbar) • Superior tightness, meeting API-2000 and ISO 4126 leak requirements
• PED and ATEX Certified


• Pilot exhaust piped to discharge header
• Field test connection
• Manual blow down
• Remote sense pickup
• Pilot supply filter

Contact your rep to start an order or learn more.