Pressure Reducing Valve Body :Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT) Seat :410 S.S , SS 304 , SS 316 Stem :410 S.S , SS 304 , SS 316 O-ring washer :Cast Iron O-ring :NBR Disc :Cast Iron (GG25, HT200) / Ductile Iron (GG40, QT) Diaphragm :Rubber Diaphragm Washer :Cast Iron Screw :Bronze […]