Flanged connections according to the type can be divided into: plate flat welding flange, with neck flat welding flanges, weld neck flange, socket welding flange, threaded flange, flange covers, weld neck ring loose flange, flat welding ring loose flange ring groove flange and flange covers, large diameter flat flange, large diameter high-neck flange, blind character, butt ring loose flange and so on. Sliding Flanges: slip flange has a low hub because the pipe before entering the single flange welding. This is welded from inside and outside weld flange 304 sufficient strength to prevent leakage. Slide the large diameter flange welded flange, are matching the outside diameter of the pipe is slightly boring. They are better than the neck flange 20 # butt welding flange, due to the lower initial cost, a lot of users, but probably will not last more than the cost of installation, less because of the increased weld neck flange. Shenyang welded flange welded flange _ # _20 million harbor harbor provided by the million. This information consists of: providing Hebei billion harbor Limited (www.hbyhgd777.com), we are business alliance member, the integrity of the whole network authentication provider. Feel free to contact us, Contact: Lu Shouan