闸阀又称闸板阀或闸门阀，应用最广泛的一种阀门。它是通过闸板的升降来控制阀门的启闭，闸板垂直于流体方向，改变闸板与阀座间相对位置即可改变通道大小。闸阀具有以下优点：1、流体阻力小,密封面受介质的忡刷和侵蚀小。2、开闭较省力。3、介质流向不受限制,不扰流、不降低压力。4、形体简单,结构长度短，制造工艺性好，适用范围广。性能范围Specifications型号Type公称压力NominalPresure试验压力TestPressure工作温度（℃）WorkingTemperature适用介质SuitableMedium强度（水）（Mpa）密封（水）空气（Mpa）低压密封空气（Mpa）Z41H-16CZ41W-16P(R)1.62.41.80.6≤200NITRICACID硝酸类Z41W-25P(R)2.53.82.80.6≤200ACETICACID醋酸类Z41W-40P(R)4.06.04.40.6≤200NITRICACID硝酸类Z41W-64P(R)6.49.67.00.6≤200ACETICACID醋酸类主要零件材料Materialformainparts零件名称Partname材料MaterialZ24Y-16I－25I－40IZ24W-16P－25P－40PQ41W-16R－25P－40R阀体、阀盖Bodydonnet铬镍钢CiNisteel铬镍钛钢CiNiTi铬镍铝钛钢CiNiMoTisteel阀板Wedgegate合金钢＋硬质合金Alloysteel＋corbiddealloy阀杆Stem合金钢Alloysteel阀杆螺母Stemnut铝铁青铜Albronze手轮Handwheel灰铸铁、可锻铸铁Csatiomforageablecasriron主要连接尺寸和外形尺寸Mainconnectingandoveralldimensions型号Type公称通径DNNominalDiameter尺寸（mm）DimensionsLDD1D2Hb-fZ-φdD0Z41W-40P(R)1513095654517016-24-144020150105755519016-24-145125160115856520516-24-1458321801351007827018-24-1866402001451108531018-34-18765023016012510037120-34-18886529018014512039122-38-181108031019516013545522-38-1812110035023019016055124-38-2315012540027022018862828-38-2517815045030025021870830-38-2520420055037532028288538-312-2526025065044538534596042-312-30313Z41W-64P(R)15170105755514018-24-144120190125906819520-24-1851252101351007821022-24-1858322301501108228024-24-2366402401651259532824-34-23765025017513510539026-34-23886528020016013041028-38-231108031021017014048530-38-2312110035025020016859032-38-2515012540029524020268836-38-3017615045034028024076838-38-3420420055040534530097344-312-34260250650470400352105048-312-41313)