Shanxi dingxiang thriving industry iron forging factory main products are: welding, lap, socket, sliding sleeve, thread, blind plate, plate and so on seven varieties, 1/2 "- 64", more than 20 kinds of specifications: good quality products, considerate service, deeply domestic and foreign merchants, the user's praise and rely on, won a high reputation both at home and abroad, has become one of domestic large flange, forging supplier.
Flange seal is two pieces of the flange connection, in the middle of the two pieces of the flange sealing surface, and then use the bolt tightening flange, the flange is not a product of a leak. In the large flange seal when the seal need to be replaced, and convenient to replace without having to remove the disc, just put the flange on the side of the valve fully open, then remove the key operator, the operation device to closed after remains and the main valve linkage, and then continue to turn the handwheel, the direction of the open until the seal is located in the valve body sealing face side can replace the sealing ring.
Large flange sealing ring in the opposite direction under the action of stress at work, since the sealing force, increase the sealing pressure, sealing ring clamp seat, the greater the pressure of work, the opposite direction, since the greater the sealing force also, so that the sealing ring and valve seat tightly bound, two-way sealing effect.
According to the different levels of pressure, flange gasket also have different material, from the low pressure asbestos pad, high-pressure asbestos pad to metal pads. To differentiate material of carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon luo drain, PPC, etc. Method to make division can be divided into pushing, pressing, forging, casting, etc. A (flat welding flange usually only flange ring, usually made of steel forging rolling can be used when necessary. When connected directly with the cylinder or seal tau kok welding connection.
When large flange sealing disc rigidity, not easy to deformation of the butterfly valve circulation of more than 12 disc for the planar truss structure, small flow resistance, good rigidity, working in the opposite direction under pressure, not easy deformation, make the seal will not with the deformation of the disc from the best seating points, thus ensuring the sealing effect of sealing ring.
