一、产品概述：上明牌ZSPQ气动活塞切断阀由切断机构与气动活塞执行机构组成。切断机构采用直通单座形成，DN20阀芯为单导向，DN25～200阀芯为双导向，具有结构简单、操作方便、使用可靠、快速开闭等特点。主要应用于无杂质、无颗粒的液体、气体介质，要求快速严密关闭，快速放空的自动控制系统中。产品符合GB/T4213-92。二、主要零件材料：零件名称材料阀体、阀盖ZG270-500、ZG1Cr18Ni9Ti阀杆、阀芯1Cr18Ni9密封填料V型聚四氟乙烯密封垫1Cr18Ni9夹石棉板蜗杆45O型密封圈耐油橡胶压缩弹簧60Si2Mn支架HT270蜗轮箱、蜗轮、气缸、轴承盖、活塞HT200推杆2Cr13三、型号及规格：类别软密封硬密封常温型中温型高温型低温型型号ZSPQ-40ZSPQ-40GZSPQ-40GZSPQ-40D规格DN20～200四、技术参数和性能指标、切断机构主要技术参数：公称通径mm20253240506580100125150200250300350400阀座直径mm26434352627994115145166216可与本公司商洽生产额定流量系数Kv6.51015254065100150260350540公称压力MPa4.0(JB/T79·2-94)行程mm16254060介质温度℃-16～150(常温)；-60～450(中温)；-60～550（高温）；-250～60（低温）；流量特性两位快开式配执行机构ZSD-DZSD-3ZSD-5ZSD-7法兰尺寸、型式按JB/T79·2-94凹式（常、中、高温）；按JB/T79·3-94榫槽式（低温）阀体材质ZG270-500；ZG1Cr18Ni9Ti；ZG0Cr18Ni12Mo2Ti五、活塞执行机构主要技术参数：型号ZSD-DZSD-3ZSD-5ZSD-7活塞直径mm150200300400有效面积cm21753057001245行程mm16254060进气孔螺纹M16×1.5M20×1.5M24×2***大输出力N720012800293005200可配附件空气过滤减压器、保位阀、行程开关、阀位传送器、电磁阀、手轮机构等操作气源压力KPa500六、气动切断阀性能指标：公称通径mm20253240506580100125150200泄漏量滴/min软密封0硬密封13579切断时间S1～22～4额定行程偏差%+10注：泄漏量试验介质为水允许压差MPa公称通径mm20253240506580100125150200允许压差气开4.04.04.02.83.52.4气关4.02.51.71.01.10.80.6七、上明牌常温型气动活塞切断阀外形尺寸：公称通径LH2带手轮不带手轮HH1H3重量kgHH1重量kg20180536624472223957435926251901117324664433322101177444865635402301318855702808577846361502551469158980865652851811131706389135969542978031019011471439839910035519411551639911091254252561588102230513057392181504602661608331132524420056028916594451376358八、上明牌中温型气动活塞切断阀外形尺寸：公称通径LH2带手轮不带手轮HH1H3重量kgHH1重量kg201805381344722243725359302519011188352795393221011789554807414023013110365702809092946366502551461066959697165285181129670638914511325421018031019013101551146111100355194131817211541281254252561803102232715207392401504602661823356154026920056028918744641591377九、上明牌低温型气动活塞切断阀外形尺寸：公称通径LH2H3-100℃-200℃-250℃带手轮不带手轮带手轮不带手轮带手轮不带手轮H1HH1HH1HH1HH1HH1H20180532225001127500103970012377001239900152790014392519011150011815001093700138170012939001581900149132210117500119350011057001393700130590015939001505402301312805001310500120370015107001403900171090016035025514650013355001228700153570014289001735900162865285181600155460014478001754800164710001954100018478031019060015656001458800176580016581000196510001858100355194600156960014628001769800166210001769100018621254252563787001942700180990021429002009110023421100220915046026670019527001819900215290020191100235211002219200