Blind character suggests that it is shaped like eight words, it is the blind end, the other end of the ring is made of a combination of throttle, transmission fluid when new listing flange, use the throttle ring, then use blind when cut, a little role as the shut-off valve flange to drawings, it can be used to cut off when the valve is leaking. Relatively good sealing performance. The need for complete isolation of the system, are generally selected as a reliable means of isolation. Before and after the 8-word blind should have two shut-off valves, flanges are all in the closed state, the word blind swap eight states. Common heat exchanger and backup cast, cast and backup reactor, nitrogen pipelines and process piping connections, and so on. Another significant feature is the identification, easy to install recognizable state. The main role played by blind character is completely cut off, like 100% reliable than a performance, they will not be the role of the misuse of the convex surface of the flange gate large inventory of flanges, flange sealing face two joints a match is a convex surface, a concave surface. Convex surface of the flange by processing methods can be divided into: convex surface of the flange casting, forging convex surface of the flange, welded convex surface of the flange, flat welding flanges and other uneven surfaces. Material can be divided into: convex surface of stainless steel flanges, steel convex surface of the flange, alloy flange and other uneven surfaces. Convex surface of the flange has a simple structure, easy processing, high pressure, high temperature resistance, corrosion resistance, good thermal stability, suitable for flammable, explosive and toxic media occasions, ease of installation, and also to prevent the gasket being squeezed, to ensure the seal with a small pressing force. Convex surface of the flange is widely used in petroleum, chemical, food, dairy, pharmaceutical, machinery manufacturing, paper, medical, construction and other industries. [Flanges], drawing processing flanges, provided by Hebei Hebei Cathay Cathay. Welcome to consult Hebei Cathay Pacific Pipeline Equipment Co. (www.hbgtgd.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Liu