Flange (flange) connection is to fix two pipes, pipe fittings or equipment first on a flange, between the two flanges, add a flange gasket, and fasten them together with bolts to complete the connection . Some pipe fittings and equipment already come with flanges, which are also flange connections. Flange connection is an important connection method for pipeline construction. The flange connection is easy to use and can withstand greater pressure. In industrial pipelines, flange connections are widely used. In the home, the pipe diameter is small and the pressure is low, so the flange connection is not visible. If it is in a boiler room or production site, there are flanged pipes and equipment everywhere.
For bolt flange joints that work for a long time under high temperature, the residual stress on the gasket is gradually reduced due to the creep relaxation of the gasket and bolt, the sealing reliability of the flange joint is gradually reduced, and eventually leads to leakage failure. To solve the sealing problem of flange joints, high temperature sealant can be used for sealing. It is suitable for the working conditions that require high temperature and pressure on the smooth and flat sealing surface (butt joint). Especially suitable for sealing metal joints: steam turbines and gas turbines, compressors, pumps, casings, flange joints, etc. Resistant to hot steam, gas, hot and cold water up to 900 ℃, light fuel oil, lubricant, crude oil and natural gas. The excellent adhesion at the sealing surface and the joints ensures a pressure resistance of up to 250 bar (255kg / cm2). Applicable to: instruments and pressure vessel flanges, bearing seat rings, bolt flanges, bearing rings, loose flanges, support washers, sealing washers, manhole flanges, flat flanges, butt welding flanges.
