Four-note metal spiral wound gasket buy common sense

Metal spiral wound gasket seal is an important component, is widely used in petroleum, chemical, metallurgy, power generation, shipbuilding and other industries, the key parts of the current static sealing of pressure pipes, valves, pumps, heat exchangers Spiral Wound Gaskets and other equipment. The selection and use of high-quality metal spiral wound gasket products, reduce and eliminate the run, run, drip, leak, safety, pressure piping to ensure that the host device to normal operation, has a very important significance.

 Metal spiral wound gasket sealing material production expert Hejian flourished Searches new and old customers to buy the metal spiral wound gasket products should pay attention to the following points:
1, according to the working conditions of metal spiral wound gasket gasket.
 2, the surface of the main body of the gasket is not allowed to affect the sealing performance of scars, gaps, uneven and full of rust defects.
 3, compression rate, rebound rate and sealing performance gasket performance, in general, in the premise to meet the requirements of the compression ratio, the higher the spring rate better; rebound rate to meet the standard requirements premise, the compression rate of the test values ​​is bigger is better. Should choose Metal Jacketed Gaskets good sealing performance, compression rate is moderate and the spring rate as large as possible.

Install metal spiral wound gasket should note the following:
1, the quality of the installation check carefully before flanges, bolts, nuts and washers, carefully check the flange interface installation, with or without partial mouth the wrong mouth, mouth the wrong holes and other defects.
 2, flange or part of the sealing surface must be clean gasket surface and bolt threads adhesion mechanical impurities are not allowed.
3, the metal spiral wound the pad shims can not be loaded partial, should guarantee uniform pressure. , Tighten the nut should force uniform, the bolts Reinforced Graphite Gasket should be symmetrical, evenly divided 2 -3 times tighten the gasket uniform pressure.