Full Lift Vacuum Relief Valve

Model 1810A

Full Lift Vacuum Relief Valve

A Full Lift Type Valve is a relief valve which attains full stable lift at only 10% overpressure. Like all Groth Pressure/Vacuum Relief Valves, the Full Lift Type Valve is a modulating valve which offers near zero blowdown, meaning it reseats near set pressure. These performance capabilities are possible due to the harmonization of the nozzle, seating, and pallet areas such that the valve will achieve stable lift at only 10% above the set pressure/vacuum.


Size: 2" (DN 50) through 12" (DN 300) flange sizes

Material: Available in aluminum, carbon steel, stainless steel, and fiberglass

Vacuum: 0.5 osig to 12 psig (2.15 mbarg to 827 mbarg)

Certification: ATEX and PED Approval


• Rated flow at only 10% overpressure provides the ability to operate closer to the tank MAWP, increasing the operating range of the process
• Reduced seat leakage prevents fugitive emissions and conserves stored product
• Near zero blow down lowers operating cost by reducing product evaporation
• Peripheral and central seat guides ensure reliable, repeatable performance
• Self-draining housing body and drip rings protect seating surfaces from condensate and freezing, increasing operational reliability


• 150# ANSI, PN10, PN16, JIS drilling classes available
• Buna-N, Fluoropolymer, FKM and other seating diaphragms
• Steam Jacket
• Spacer


Full Lift Vacuum Relief Valve

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