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Protect Your Tank from Damage with Groth Corporation’s Newest Valve


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 Model 12F-TWW-0 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. 

Features & Benefits

  • 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.

Options & Technical Details:

Corrosion resistance can be enhanced with fluorocarbon-based fluoroelastomer or fluorine rubber / fluoro-rubber (FKM) soft goods.

  • 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 (2barg) to 24 osig

  • Superior tightness, exceeding API-2000 leak requirements

  • PED and ATEX Certified

About Groth Corporation:

Established in 1960, Groth Corporation is a global leader in manufacturing pressure/vacuum relief valves, deflagration and detonation flame arresters, blanket gas regulators, and other low-pressure relief products. Groth pressure relief products have been protecting refineries, chemical processing plants, and facilities with atmospheric storage tanks for more than 50 years.

Contact M. R. Franceschini, Inc.

for more information 787-622-7080

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