PF-25 flap valves are free-opening, tight-closing valves available at a modest price. These valves feature a positive 7.5 degree seating angle, and neoprene to metal seat. The body is constructed of sturdy cast iron, with stainless steel hinge bars, bearing washers, and cotter pins. Positive stops prevent jamming.
Flange style mount (ANSI 125#) available for 4″ – 24″ sizes (PF-25F)