Double Shaft without Pin stem butterfly valves are popular and meet many markets Design to comply with MSS SP-67, BS5155 and API 609 Compatible with ANSI, DIN, JIS flanges Size range: handles (1 1/2 to 12 inches), manual gear operators (1 1/2 to 48 inches) Pressure: from PN0.6MPa to PN1.6MPa Medium: acids, alkalis and salts Materials list: Body materials: cast iron, ductile iron and stainless steel Disc: Ductile Iron (with PTFE Coated) Seat: PTFE Shaft: SS410, SS416 Pin: SS316 O ring: NBR, EPDM, neoprene and viton Bushing: PTFE, nylon and lubricated bronze
