Tianjin Exxon Valve Co.,Ltd, with professional factory, is one of the leading China 4 inch butterfly valve manufacturers, we are able to offer you cheap 4 inch butterfly valve. Welcome to wholesale products from us.4 inch wafer butterfly valve Size: DN40-DN1200End Flange: ANSI B 16.1 EN1092 AS2129Face to Face: ANSI B 16.10Top Flange: ISO 5211Normal Pressure: PN1.0/1.6Mpa(150/200PSI)Body: Cast Iron/Ductile Iron/WCB/ALB/CF8/CF8MDisc: Cast Iron/Ductile Iron/ALB/CF8M/CF8Stem: SS416/304/316/431Seat: Hypalon/EPDM/Neoprene/NBR/Viton/Silicon/PTFESuitable Temperature: -45C to 150CFeatures:1. Structure simple compact, the weight is light, 90' revolves, the switch is rapid2. Designs reasonably, the assembling and dismantling is easy, to be advantageousFor the service3. Uses the eccentric structure, reduces the seal packing collar the friction, lengthensThe valve service life4. Completely seals, divulges for zero 

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