(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'); Pressure/Vacuum Relief Valve with Pipe-Away - Groth Corporation


Pressure/Vacuum Relief Valve with Pipe-Away

The Groth Model 12F-TWW-0 Pressure/Vaccum Relief Valve with Pipe-Away design was created to exceed industry needs. Extensive research and development have produced a product that achieves both superior sealing performance and industry leading flow rates, while also allowing customers to reach their required flow rates with a potentially smaller sized valve and utilize 10% overpressure technology. The pressure vacuum relief valve is designed to protect your tank from damage created by overpressure or excessive vacuum. Costly product evaporative losses due to normal tank “breathing” are greatly reduced. The Model 12F-TWW-0 are superior sealing valves developed to minimize fugitive emissions while providing increased protection and safety to tank equipment and on-site personnel.


  • This valve is designed to work with a 10% overpressure
  • Product leakage and fugitive emissions are reduced via ultra-tight sealing
  • Higher flow capacity to protect from both excessive pressure and excessive vacuum build up
  • Peripheral and central seat guides ensure reliable, repeatable performance
  • Designed for easy maintenance, thus reducing downtime and operational cost
  • Size: 2” through 12”
  • Body Material: Aluminum, Carbon Steel, Stainless Steel
  • Pallet Material: Aluminum, Stainless Steel
  • Diaphragm Materials: Buna-N, Blue FKM or FEP
  • Weight Material: Zinc-Plated Steel,Stainless Steel
  • Bolting Class: 150# ASME, PN10, PN16, JIS drilling classes available
  • Available Pressure Settings: 0.5 osig to 24 osig
  • Available Vacuum Settings: 0.464 osig (2 mbarg) to 24 osig
  • Superior tightness, exceeding API-2000 leak requirements
  • PED and ATEX Certified
  • Corrosion resistance can be enhanced with FKM soft goods

Contact your rep to start an order or learn more.