偏心半球阀结构特点及用途
时间:2013-03-12 阅读:827
结构特点及用途
1、电动偏心半球阀压力损失小:全开时水损为零,流道*畅通,且介质不会沉积在阀体中腔内。
2、耐颗粒磨损:V型开口的球冠与金属阀座之间具有剪切作用,在关闭过程中,只在zui后一刻球冠才靠向阀座,不形成磨擦,且阀座耐磨的镍合金制成,不易被冲刷磨损,因而适用于含纤维、微小固体颗粒、浆等。
3、适合高流速介质:直通流道,坚固的偏心一曲轴使之适合高流速且无振动。
4、寿命长:无易损部件,由于偏心作用,阀门启闭时密封面间无磨擦,则使用寿命长。
5、维修方便:阀门维修时不需从管路上拆下,只要打开阀盖即可进行维修
6、气动偏心半球阀广泛适用于水、污水、含微小固体颗粒、水、蒸汽、煤气、天然气、油品等。
Structuralcharacteristicsanduses
1、littlepressureloss:waterlossiszeroatfullopen,compleysmoothflow,whichwillnotbedepositedondielectricValvecavity.
2、Bearstheparticlesattrition:Vshapeopensthemouthbetweentheballcrownandthemetalvalveseattheactionisshear,intheclosureprocess,onlythendependsoninlastthemomentballcrowntothevalveseat,doesnotformthefriction,alsothevalveseatmakeswiththewear-resistingnickelalloy,isnoteasilywashedouttheattrition,thusissuitabletocontainsthetextilefiber,thesmallsolidparticle,thethickliquidandsoon.
3、Suitableforhigh-velocitymedia:Directflow,solideccentriccrank,makeitsuitableforhighspeedwithoutvibration.
4、Longlife:novulnerableparts,thereisnofrictionbetweenthesealingsurfacewhenthevalveopensandcloseduetothefunctionoftheeccentric,thereforethereislonglife.
5、Easymaintenance:Valverepairwithoutremovefromthepipeline,aslongasthevalvecoverisopenedformaintenance.
6、Widelyusedinwater,sewage,containingtinysolidparticles,water,steam,gas,oil,etc.
执行标准Implementationofthestandards
上海博球防腐阀门有限公司专业提供:气动偏心半球阀,气动法兰蝶阀,电动法兰截止阀等产品。