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...
Ductile Iron Lug Butterfly Valve
Valves size from 2" to 48", and connection ways can be lugged or semi-lugged wafer style, double flanged style, single flanged style, etc. Working pressures range can be from 150 to 250 psig. Body materials can be cast iron, ductile iron, stainless steel, wcb, etc, and the dis materials can be ductile iron (nickel coated cast iron and nylon coated cast iron are available). Valve seat materials consist of neoprene, silicone, hypalon, viton, buna n, and EPDM.
End flange: ANSI b 16.1, ASTM b 16.47, en 1092, as 2129, ISO pn10/16, JIS b2212/2213, bs 10 table d, bs 10 table e, bs4504
Face to face: ANSI b 16.10, API 609, bs5155 short, ISO5752(series 13), DIN3202 f16
Top flange: ISO 5211
Normal pressure: DN40-DN600(1.5"-24") pn1.0/1.6mpa(150/200psi) dn700-dn1200(28"-48") pn1.0mpa(150psi)
Body: Cast iron/ductile iron/wcb/carbon steel/al-bronze/CF8, ss304/CF8m, ss316
Disc: Ductile iron/ni-plated ductile iron/nylon-plated ductile iron/al-bronze/rubber lined disc/1.2501/1.4529/CF8/CF8m/hastelloy alloy/monel
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of Ductile Iron Butterfly Valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.