Spectacle blind flange

Spectacle blind flange also called splay blind plate, just as its name implies, its shape like a figure eight, one end of it is blind plate. At the other end is by the throttle loop combination, in fluid delivery, using a throttle ring, cut off when the blind plate, point like shut-off valve, it can in the leak valve to cut off. The sealing performance is very good. For systems that need to be completely isolated, they are generally selected as reliable means of isolation. Spectacle blind flange should be, before and after, the 2 stop valve, all in a closed state, the 8 word blank. Common heat exchangers and spare, reactor and spare, nitrogen pipeline and process pipeline connection, etc.. Another feature is the obvious identification, easy to recognize the status of its installation.