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Gaskets are materials made of paper, rubber sheets, or copper sheets and placed between the two planes to strengthen the sealing element set between the static sealing surfaces to prevent fluid leakage.
Material classification: gasket washer pad parts between the connector and the nut, generally a flat metal ring; non-metal gasket non-metallic gasket is made of non-metal asbestos, rubber, synthetic resin, FE-etc. A nonmetallic coated gaskets non-metallic jacket gasket outsource nonmetallic gaskets with a layer of synthetic resin, etc.; semimetallic gasket are gaskets made of metal and nonmetallic materials, such as wound gasers, metal coated gaskets. A-winding gasket spiral wound gasket is a gasket made of a non-metallic strip wrapped in a V-shaped or W-shaped section.1) The inner ring inner ring is set in the metal ring of the winding gasket inner ring.2) The outer ring outer ring is set in the metal ring of the winding gasket outer ring. Cover b-metal; metal gasket metallic gasket is made of metal such as steel, aluminum, copper, nickel or monel alloy; winding gasket with metal belt (generally v-type steel strip) and non-metal belt, which is widely used in petrochemical, chemical, power industry, flange sealing structures, and can be positioned or strengthened in the inner or outer layer of the gasket with the steel ring.
Basic standard: the definition and selection of GB / T l047-2005 pipeline element DN (nominal size); Definition and selection of GB / T l048 2005 pipe element PN (nominal pressure); GB / T l2385-2008 tube flange; Test method for GB / T l2621 2008 tube flange; Test method for compression rate and rebound rate of gasket for GB / T l2622 2008 tube flange; GB / T 20671.1-2006 Non-metallic gasket material classification system and test Methods- -Part 1: Non-metallic gasket material classification system;GB / T 20671.2-2006 Non-metallic gasket material classification system and test methods- -Part 2: Gasket material compression rate of the rebound rate test method; GB / T 20671.3-2006 Non-metallic gasket material classification system and test methods-Part 3: liquid resistance of gasket materials; GB / T 20671.4-2006 Non-metallic gasket material classification system and test methods- -Part 4: Seal test methods for gasket materials; GB / T 20671.5-2006 Non-metallic gasket material classification system and test methods- -Part 5: Test methods for the creep and relaxation rate of gasket materials; GB / T 20671.6-2006 Non-metallic gasket material classification system and test methods- -Part 6: Test methods for the adhesion of gasket materials and metal surfaces; GB / T 20671.7-2006 Non-metallic gasket material classification system and test methods- -Part 7: The tensile strength test methods of non-metallic gasket materials; GB / T 20671.8-2006 non-metallic gasket material classification system and test methods- -Part 8: The softness test method of non-metallic gasket materials;GB / T 20671.9-2006 non-metallic gaskets material classification system and test methods- -Part 9: Test methods for rubber gaskets materials; GB / T 20671.10-2006 Non-metallic gaskets material classification system and test methods- -Part 10: Determination methods of thermal conductivity of gasket materials; GB / T 20671.11-2006 non-metallic gaskets material classification system and test methods- -Part 11: Determination methods of mildew resistance of synthetic polymeric materials;
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July 18, 2022
July 22, 2022
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