UJ41H柱塞截止阀结构及特点柱塞截止阀是由阀体、阀盖、阀杆、柱塞、导向、密封环、手轮等零件组成(如图)。当手轮旋转时，通过阀杆带动柱塞在导向套中上、下往复运动，使柱塞端部斜锥面与阀座锥面完成阀门的开启与关闭功能。在阀门中柱塞与密封环间采用过盈配合，通过调节中法兰螺栓预紧力，使密封环压缩所产生的侧向力与阀体中孔面柱塞外圆密封，从而保证了阀门的密封性。杜绝了内泄漏。由于密封环采用回弹性强、耐磨性高的无毒新型密封材料，所以密封可靠、经久耐用，从而提高了阀门的使用寿命。本阀门结合柱塞阀的无泄漏优点和截止阀启闭快的特点，成为一种结构新颖、用途广泛的新产品。其优越性远胜于普通截止阀。柱塞截止阀的运用范●阀门设计、制造按：GBl2235《法兰连接钢截止阀升降式止回阀》的规定。●阀门的结构长度按：GBl2221《法兰连接金属阀门长度》系列尺寸。API阀心结构长度按ANSI16110-86有关尺寸选用。●阀门连接法兰尺寸按：HGJl44-76-91《钢制管法兰、垫片、紧固件》及HG标准中的尺寸选用。●阀门检查和试验按：GB/T13927《阀门的实验和检验》及API598《阀门的实验和检验》要求。安装和维修●本公司生产的柱塞截止阀出厂前均进行过严格试压、验收。使用时只需将外表及孔腔清洗干净，不必拆洗和更换。●本阀门可在任意位置安装，介质流动方向见阀体上箭头所示。●经过一段时间的使用，密封环如有磨损有渗漏必须先将阀门关闭后，再将中法兰螺栓均匀略加旋紧以至下渗漏即可，●不宜盲目将螺栓拧得太紧。同时更换时应防止柱塞和新装密封环表面裂痕和碰伤。柱塞截止阀的结构规范PNl.6-4.OPN6.4-10.0DNl5-250DNl5-100PNl.6-4.OPN6.4-10.0DN≥250DN≥200柱塞截止阀平衡式柱塞截止阀柱塞截止阀的性能规范阀体材料适用温度适用介质压力范围铸钢≤425℃水、蒸汽、石油产品PNl.6-1.6MPa不锈钢≤300℃硝酸、醋酸通径范围含钼不锈钢≤300℃氮、氢、氨尿素等DNl5-500mm法兰连接柱塞截止阀结构尺寸1.6-MPaUJ41H-16CUJ41W-16CP/R公称通径DN(mm)1520253240506580100125150200250300350400450500主要外形尺寸及连接尺寸(mm)L130150160180200230290310350400480600650698787914987987D95105115135145160180195215245280335405460520580640705D1657585100110125145160180210240295355410470525585650D24555657885100120135155185210265320375435485545608b141414161616182020222426303034364044Z-φd4-φ144-φ144-φ144-φ184-φ184-φ184-φ188-φ188-φ188-φ188-φ2312-φ2312-φ2512-φ2516-φ2516-φ3020-φ3420-φ34H1331701781952302502723003123654004609409851100139514801600重量kg3.64.56811152132446285148260340552752120014002.5-MPaUJ41H-25CUJ41W-25CP/R公称通径DN(mm)1520253240506580100125150200250300350400450500主要外形尺寸及连接尺寸(mm)L130150160180200230290310350400480600650698787914987987D95105115135145160180195230270300360425485550610660730D1657585100110125145160190220250310370430490550600600D24555657885100120135160188218278332390448405555610b1616141818202222242/3034364044485052Z-φd4-φ144-φ144-φ144-φ184-φ184-φ188-φ188-φ188-φ238-φ258-φ2512-φ3012-φ3016-φ3016-φ3416-φ3420-φ3420-φ41H13317017819523025027230031236541047094010001140140015001620重量kg3.54.56811162232486590165280360580800128014504.O-MPaUJ41H-40CUJ41W-40CP/R公称通径DN(mm)1520253240506580100125150200250300350400450500主要外形尺寸及连接尺寸(mm)L130150160180200230290310350400480600650698787914987987D95105115135145160180195230270300375445510570655680735D1657585100110125145160190220250320385450515585610670D24555657885100125135160188218282345408465535560612D6405158667688110121150176204260313364422474524576b161616181820222224283038424652586062Z-φd4-φ144-φ144-φ184-φ184-φ184-φ188-φ188-φ188-φ238-φ258-φ2512-φ3012-φ3416-φ3416-φ3416-φ4120-φ4120-φ48H13317017819523025027230031236541058094010001140140015001620重量kg3.54.56811162232487512018532048070093014501600法兰连接柱塞截止阀结构尺寸6.4-MPaU41H-64CUJ41H-64P/R公称通径DN(mm)1520253240506580100125150200250300主要外形尺寸及连接尺寸(mm)L170190210230260300340380430500550650775900D105125135150165175200210250295340405470530D17590100110125135160170200240280345400460D25568788295105130140168202240300352412D6405158667688110121150176204260313364b1820222424262830323638444854Z-φd4-φ144-φ184-φ144-φ234-φ238-φ238-φ238-φ258-φ308-φ348-φ3412-φ3412-φ4116-φ41H1501651852002352602853203404004505009801000重量kg689142230407098150260400520680PNl0.0MPaUJ41H-100UJ41H-100P/R公称通径DN(mm)1520253240506580100125150200250300350400主要外形尺寸及连接尺寸(mm)L17019021023026030034038043050055065077590010251150D105125135150165195220230265310350430500585655715D17590100110125145170180210250290360430500560620H150165185200230250280300340400460520980106012001350重量kg681016263448961302503805106608109501100PNl6.0MPaUJ41H-160公称通径DN(mm)1520253240506580100125150200250300主要外形尺寸及连接尺寸(mm)L165190216229241292330356432508