Pressure / Vacuum Relief Valve with Pipe-Away Feature MODEL 12F-TWW-0

The Groth Model 12F-TWW-0 Pressure/Vacuum Relief Valve with pipe-away design was created to exceed industry needs. Extensive research and development have produced a product that achieves superior sealing performance and industry-leading flow rates, while allowing customers to achieve their required flow rates with a potentially smaller valve and to use 10% overpressure technology. The pressure/vacuum relief valve is designed to protect your tank from damage caused by overpressure or excessive vacuum. Costly product evaporation losses due to normal tank "breathing" are significantly reduced. Model 12F-TWW-0 valves are top-sealing valves developed to minimize fugitive emissions, while providing greater protection and safety for tank equipment and on-site personnel.

This valve is designed to operate with 10% overpressure.
Product leakage and fugitive emissions are reduced through ultra-tight sealing.
Superior flow capacity to protect against both overpressure and excessive vacuum buildup.
Peripheral and central seat guides ensure reliable, repeatable performance.
Designed for easy maintenance, reducing downtime and operating costs.

Size: 2” to 12”

Body material: Aluminum, Carbon Steel, Stainless Steel

Pallet material: Aluminum, Stainless Steel

Diaphragm materials: Buna-N, blue FKM or FEP

Weight material: Galvanized 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 leakage requirements

PED and ATEX certified

Corrosion resistance can be improved with soft FKM materials.