Home > News > Metal spiral wound gasket products pass rate of 86.4%
Metal spiral wound gasket products pass rate of 86.4% - 2013-04-24 18:42:25
TheAQSIQhasmetal spiral wound gasketproductsquality supervision and inspection, the products qualitypass rate of86.4%.
Metal spiral wound gasketis an importantsealing components,has been widely usedinpetroleum, chemical,metallurgy,power generation,shipbuildingandotherindustries,key componentsofpressure piping, valves,pumps,heat exchangersandotherequipmentstatic seal.
The Spot checksonthemetal spiral woundgasketcompressionrate, reboundrate,seal leakageandappearance qualityfour projectshave been tested,involving a total of22productionoftheShanghai, Jiangsu,Zhejiang,Henan,Shandong and otherprovinces, municipalities22kinds of products(not related to exports).
Spot checks found thatthemain quality problems are:
Individualcompression ratiofailed.Thecompression rateisan important performance indicatorsofthespiral wound gasketproducts.Thegasketcompression ratioistoo large,islikely to causeinthenormal installationpreloadspacerstructural damage;thegasketcompression ratioistoo small,the need to usethe initialinstallationpreloadlarge,easy to achievesealing effect, likely to causerun, run, drip, leak.