Plastomatic VBM Polypropylene Vacuum Breaker - 3/4"

Features:

•  Eliminates vacuum which can produce unwanted siphonage or tank collapse.

•  Same diaphragm design as diaphragm check valves; begins opening minimum vacuum, approximately 2 Hg.

•  Allows atmospheric pressure to enter system at 80 cubic feet of air/minute. (0.38 cubic meters air/second) in full vacuum.

•  Threaded end; socket available if specified.

•  Body materials: PVC, CPVC, natural polypropylene or PVDF.

•  Diaphragms manufactured of EPDM or FKM.

•  Working pressure 100 psi at 75ºF.

•  1-1/2, 2 and 3 sizes use a PTFE encapsulated stainless steel spring to emulate the performance of the smaller diaphragm-style sizes.