Main Features: The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation...
Body: Cast iron, ductile iron/GGG25/GGG20/GGG50
Disc: Ductile iron (nickel coated), GGG25/GGG20/GGG50/aluminum bronze, stainless steel.
Shaft: 416, 410,stainless steel.
Sealing: NBR, EPDM or customized.
Type Available: Wafer type and lugged type
Sizes Available: DN25mm to DN1200mm (1" to 48")
Pressure Range: From PN1.0 to 1.6 (150LB)
Materials Standard; Others on request
Basic Design: API609, BS5155, EN593, MSS SP-67
Face to Face Dimension: API609, DIN3202K1, ISO 5752, BS5155, EN558
Inspection & Testing: API 598, EN 12266-1
Top Flange: ISO5211 or customized.
Suitable Mediums: Fresh or waste water, sea water, sewage, vapor, air, oil, etc.
Suitable Temperature: -15℃-150℃
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of cast iron butterfly valves in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.