平板閘閥的產(chǎn)品結(jié)構(gòu)特點(diǎn)Productsdesignfeatures ●閥體有鑄造和焊接兩種結(jié)構(gòu)。 Castandweldtwostructureswiththebody ●閥座采用O形密封圈密封和施加預(yù)緊力的浮動(dòng)閥座結(jié)構(gòu),使閥門(mén)進(jìn)出口雙向密封;并且該結(jié)構(gòu)的啟閉力矩僅為普通閥門(mén)的1/2,能達(dá)到輕松開(kāi)、關(guān)閥門(mén)。 Thesealringusesthefloatingseatringstructurewitho-searringsealedandpre-tighteningforceappliedtohaveinletandoutletdual-waysealed;andtheopen-closemomentwiththisstructureis1/2thatofthecommonvalvesonly,abletolightlyopenandclosevalves. ●閥座采用密封面上鑲嵌PTFE,具有PTFE對(duì)金屬和金屬對(duì)金屬的雙重密封,PTFE密封面同時(shí)清除閘板臟物的作用, TheseatringusesthesealingfaceinlaidwithPTFE,sohasdualsealsofPTFEtometalandmetaltometal,thePTFEsealingfacealsoactsasremovingthedirtonthewedgedisc. ●金屬對(duì)金屬密封的閥門(mén),閥體外部設(shè)有注油脂結(jié)構(gòu),油脂通過(guò)注脂器、閥座進(jìn)入閥門(mén)密封面,使閥門(mén)達(dá)到零泄漏。 Forthevalvewiththemetaltometalseal,thereisgreaseinjectoroutsideofit,greasegetsintothesealingfacethroughtheinjectorandtheseatringtohavethevalveuptonullleak. ●帶導(dǎo)流孔閥門(mén)的閘板,無(wú)論是全開(kāi)或是全關(guān)始終與密封面吻合,密封面得到保護(hù)不受介質(zhì)直接沖刷,從而延長(zhǎng)使用壽命。 Thewedgediscofthevalvewithflowguideholeisalwaysfittedwiththesealingfacewhetherinfullopenorfullclosestatustohavethesealingfaceprotectedwithoutbeingdirectlyerodedbythemediumsoastoextendtheduration. ●閥門(mén)在全開(kāi)時(shí),通道平滑為直線(xiàn),流阻系數(shù)極小,無(wú)壓力損失,可通毛球清掃管線(xiàn)。 Whenfullyopened,thevalveschannelissmoothandlinear,withanextremelysmallflowresistingcoefficientandnopressureloss,andthepipelinecanbecleanedwithhair-ballthroughit. ●本閥采用帶自密封能力的填料結(jié)構(gòu),無(wú)需經(jīng)常調(diào)節(jié),開(kāi)、關(guān)極為輕便,且密封性可靠,填料函處設(shè)有輔助密封油脂注入結(jié)構(gòu),密封性能絕對(duì)可靠,真正達(dá)到零泄漏;解決了通用閥門(mén)填料處最容易外漏的蔽病。 Thisvalveusesthepackingstructurewiththeabilityofself-seal,needsnoconstantadjustment,featuresverylightopenandcloseandareliablesealAnassistingsealinggreaseinjectionstructureissetinthepackingtohavethesealingperformanceabsolutelyreliableandgetatruenullleak,settlingtheproblemforthepackingplaceofuniversalvalvestobeeasiestleakoutward. ●閥門(mén)關(guān)閉時(shí)能自動(dòng)卸掉內(nèi)腔高壓(詳見(jiàn)工作原理圖),保證使用安全。 Automaticremovalofthehighpressureintheinternalcavitywhenthevalveisabouttoclose(seetheworkingprinciplediagram)forthedetails)soastoensuresafety. ●全封閉結(jié)構(gòu),防護(hù)性能好,可適應(yīng)全天候要求。 Fullysealedstructureleavesagoodprotectiveproperty,suitalbefortherequirementof24-hourduty. ●升降桿閥門(mén)設(shè)有指示桿或觀察窗以表示閥門(mén)的啟閉情況,旋轉(zhuǎn)桿閥門(mén)采用封閉齒輪轉(zhuǎn)動(dòng)啟閉指示機(jī)構(gòu)。 AnindicationrodorviewingwindowissetAscendanddescendstemwiththevalvetowhowtheopen-closecondition,RevolvestemwiththevalveUseasealedgear-drivingopen-closeindicatingmechansim. ●直理式閥門(mén)外表面采用環(huán)氧煤瀝青防腐處理,能與管線(xiàn)同壽命。 Theexternalsurfaceofthedirectlybuilt-invalveiscorrosionresistingtreatedwithepoxycoalbitumenandcanbethesamedurationasthepipeline.
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