双重把蝴蝶阀门

Double flanged butterfly valvesCast Iron Double Flanged Butterfly Valve, Compatible with DIN, BS, and ANSI125/150 FlangesDouble flanged butterfly valves with gear Complies with BS5155 Compatible with DIN, BS, and ANSI125/150 flanges Face to face according to ISO 5752 basic series 13 (short)/DIN 3202 part 1 series F16 To splice the rubber liner on the body, the strength more highly and the seal more reliably for the seat O-ring cast on the seal surface of the seat, negates need for flange gaskets Available in sizes of 2 to 48 inches Available with handles, manual gear operators, and electric or pneumatic actuators Materials: Body: cast iron and ductile iron Disc: ductile iron (with nickel-plated or nylon-coated), SS304, 304L, 316, and 316L stainless steel Seat: PTFE Shaft: SS410 and SS416 Pin: SS316 O-ring: NBR, EPDM, and neoprene Bushing: PTFE, nylon, and lubricated bronze