The most notable advantage of the Groth Full Lift Type Valve Compared to Standard Pressure/Vacuum Relief Valves is its’ ability to open at 10% overpressure while standard Pressure/Vacuum Relief Valves achieve full open capacity at 100% overpressure. The use of a Full Lift Type Valve allows the user to select the valve set pressure (vacuum) within 10% of the tank Maximum Allowable Working Pressure (vacuum). This is important because operation near the tank design pressure greatly reduces the breathing losses of the product in the tank.

Specifications
Size: 2" (DN 50) through 12" (DN 300) flange sizes
Material: Available in aluminum, carbon steel, stainless steel, and fiberglass
Pressure: 0.5 osig to 15 psig (2.15 mbarg to 1.03 barg)
Vacuum: 0.5 osig to 12 psig (2.15 mbarg to 827 mbarg)
Certification: ATEX and PED Approval