Specification :

A kind of popular butterfly valve for many markets
Design to comply with MSS SP-67, BS5155, and API 609
Compatible with ANSI, DIN, and JIS flanges
Size range: handles ( 11/ 2 to 12 inches) , manual gear operators ( 11/ 2 to 48 inches)
Pressure: from PN0.6 to PN1.6mPa
Medium: acids, alkali, and salts
Materials list:
Body materials: cast iron, ductile iron, and stainless steel
Disc: ductile iron ( with nickel-plated or nylon-coated) , SS 304, 304L, 316, and 316L
Seat: PTFE
Shaft: SS410, SS416
Pin: SS316
O-ring: NBR, EPDM, neoprene, and Viton
Bushing: PTFE, nylon, and lubricated bronze