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.
ANSI B 16.1,ASTM B 16.47,EN 1092,AS 2129,ISO PN10/16,JIS B2212/2213
Face to face:
ANSI B 16.10,API 609
Cast Iron/Ductile Iron/WCB/Carbon steel/AL-Bronze/CF8,SS304/CF8M,SS316
Ductile Iron/Ni-plated ductile iron/Nylon-plated ductile iron/AL-Bronze/Rubber lined
SS416/SS304/SS316/SS431/17-4PH/Monel/Carbon steel 45/45#
water, sewage, sea water, air, vapor, medicine, oil, etc
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of 3 inch 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.