Blind character is a pipe with a piece. Is half blind half hoops. Commonly used in the process need to change the pipe flange can be selected according to the pipe pressure rating and piping media. When the general blind use, requiring the same pressure while supporting the use of a piece, diameter, surface sealing flapper to replace aside after removal of blind gap. Do not forget, when you open the table to open the material together, oh. Blind flange is solid for closed pipe end use. Generally used in water supply branch pipe ends, there is a temporary part of the pipe when the pressure test to advance to the temporary closure of use. Compared with the general character blind blind when switching operation, no swap scored just end face, if using blind pipe voids. so, practical applications, mostly using blind character, followed by the character should be matched blind flange sealing surface. Must be added to the system when the lockout blind spaced locations, the best selection of eight word blind, such as: pipeline block valves at the access device, into the steam line isolation valves tower at. These locations often blind to use, easy to manage. Infrequently used blind position, temporarily use an ordinary blind. Blind character is a pipe with a piece, you can put the specific shape of "8" on the upper part painted black to know. Is half blind half hoops. Commonly used in the process need to change the pipe flange, carbon steel and stainless steel, the main material can be selected according to the pipe pressure rating and piping media. Device used primarily to facilitate the blind when cutting materials with a purge and overhaul generally recommended eight word blind, it is easy to check the correctness of the blind, nor will blind the other half is lost, to ensure safe operation sex. Only when the large diameter blind, single-blind carbon steel blind spot sales and a higher pressure level, and then alternate the other half blind character, superior quality, easy on-site switching. When the blind for venting and drain, the other side can be used directly on the atmospheric single-blind, no spare other half. Blind character and general use of the blind do not have what distinction wholesale stainless steel blind, but when the diameter is larger, eight word blind heavy and not easy to disassemble blind, so instead of using the general blind. When word blind with 8 DN greater than 300 generally not appropriate formal name is blind flange cover, blind flange with holes in the middle is not available for use to seal the pipe plug. Blind species form large sealing surface, with flat, convex, concave and convex surfaces, tongue and groove, ring joint face. There JB86.1-94 Standard convex steel pipe flange convex surface of the cover JB86.2-94 steel pipe flange cover GB/T9123.1-2000 flat, raised face steel pipe flange cover GB/T9123.2 -2000 convex surface of steel pipe flange cover GB/T9123.3-2000 steel pipe flanges with tongue and groove lid GB/T9123.4-2000 steel pipe flange ring joint face cover HG20601-1997 steel pipe flanges cover (European system) HG20622-1997 steel pipe flange cover (American system) [Blind] _ steel blind spot sales _ Welcome to Hebei billion gold piping supplied by Hebei billion gold piping. Welcome to consult Hebei billion Gold Pipe Manufacturing Co. (www.yijinguanjian.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Alan Li Tong