Pressure / Vacuum Relief Valve with Pipe-Away Feature and Same-Size Inlet and Outlet, MODEL 1720A

Groth Series 1700 relief valves are designed with same-size inlet and outlet flanges to reduce installation costs by allowing the use of smaller piping on the discharge side. Model 1720A valves are designed for systems that require pressure and vacuum relief.

Air-cushioned seats

Central and peripheral pallet guiding

Self-draining body

Fluoropolymer seat diaphragms that minimize sticking caused by resinous vapors and atmospheric moisture

Self-draining housing body and drip rings protect seating surfaces against condensation and freezing

The design prevents pressure or vacuum buildup due to jamming or obstruction of the valve.

Sizes: 2” (DN50), 3” (DN75) and 4” (DN100)

Materials: Carbon steel, stainless steel or fiberglass

Seat and pallet materials: 316 stainless steel

Same-size inlet and outlet connections

Manufactured in an ISO 9001-certified facility

Higher set pressures (in weight-loaded configuration) than standard pipe-away valves

PED and ATEX certification

Seat diaphragm options: Buna-N, FKM and other materials

Stainless steel weights