Gasket performance and installation - 2013-09-02 01:01:34
Gasketdue tovarious types ofvariety,but also against theuse ofdifferent environmental conditionsare different,but no matterwhat typeofgasket, musthave the followingcharacteristicsimportantelements: Tightness The sealingsystem,the media, the spaceratthe recommendedworkingtemperature and pressureleakagedoes not occurwithin a certain time. Compressibility Gasketand flangeboltsin the connectioncontact surface, should bewellaligned toensure sealing. Creep resistance Gasketpressureload andthe influence oftemperature,should bebettercreep resistance,boltorbacktorquecaused bydamageresultinggasketsurface stressdecreases, sohard gassystemleaks. Chemical resistance Thegasketshould bechosenfrom chemicalcorrosion medium,and can not becontaminated medium. Resilience Evenunderconditions of stabilityin the system,connected totwoflangesdue to temperatureand pressurewill definitely be thepresence ofsmall displacement,gasketelasticityshould be able tocompensate for thisshift,in order to ensurethe tightness ofthe system. Anti-bondingnature Gasketafter usecan be easilyremovedfrom theflange,withoutadhesive Non-corrosive Respond tothe connectionflangegasketsurfacenon-corrosive. Resistant to temperature Gasketshould bechosento ensurethe system'sminimumand maximum temperaturesundernormal use. Ensure that the systemin addition tohave a goodsealsealing material, but alsofollowthe correctinstallation: 1,flangegasketmust beplaced inthe exact center oftheraised faceflangeis particularly important; 2,ensure the sealing surfaceflatness andprecision; 3,must besymmetricalfasteningbolts; 4,spring washermust be usedto ensure thatthe loadevenly,fastening boltsusingtorquewrench; 5,the system is runningday,check and re-calibration connectorbolt torque; 6, to ensure thegasketlife, do notuse liquid ormetal matrixanti-blocking agentorlubricant.