Chongqing Exhibition kun wholesale flanged butterfly valve, the wholesale market price, complete specifications. Tel: 15123295084 [Zhang] www.zhankunguandao.com valve flange sealing surface, there are three types: planar sealing surface, apply pressure is not high, medium toxic occasions; uneven sealing surface for higher pressure situations ; tongue and groove sealing surface for flammable, explosive, toxic medium and high pressure situations. A spacer can be plastically deformed and has a ring made of a material strength. Flange also known as flange or flange. Tube and pipe parts so interconnected. Connected to the pipe end. There are perforations can be worn bolts, so that the two flange abuts the flange. Between flange sealing gasket. Requires efficient, automated, easy to operate; manufacturing point of view from the mold, the reasonable demands of the structure, easy to manufacture, low cost. Most non-metallic gaskets are cut from the plate down, or by a professional factory making required size, the material is asbestos rubber sheet, asbestos, polyethylene panels; also useful for sheet metal (tin, stainless steel) asbestos other non-metallic materials wrapped package gasket made of metal; there is a wound together with spiral wound gasket made of thin steel and asbestos. Flanged pipe fittings with finger flange (flange or disk access) for. It can be cast from (figure available), may also be threaded or weld composition. Flange connection by a pair of flanges, a gasket and a number of bolts and nuts. The third is co-molding process, feed, plastic, injection molding, mold and ejector Kai All products are injection molding machines operate automatically, so that the diameter pipe injection molding process is easy to achieve full automation and process control. Due to limitations cooling conditions, it is difficult to use this technology system defect, a large wall thickness variations and thermoplastic products, but we also see the inadequacies of injection molding.