r 详细介绍r
rr r
一、V型球阀的概念: r r r V型球阀属于固定球阀,也是单阀座密封球阀,调节性能是球阀中最佳的,流量特性是等百分比的,可调比达100:1。它的V型切口与金属阀座之间具有剪切作用,特别适合含纤维、微小固体颗粒、料浆等介质。r r r
二、ZSHV气动V型切断球阀: r r r ZSHV气动V型切断球阀是一种芯阀座采用金属,或金属对聚四氟乙烯密封配合的旋转球阀,它将球阀和蝶阀的最佳控制特性结合成一体,既可用作控制调节阀,又可作关断切断阀。r r r
三、ZSHV气动V型切断球阀的主要特点: r r r (
1)不带任何管接头的整体式阀体,因此不受管道或螺栓应力影响,并且由于阀体无任何管接头,故耐压壳体不会受压力“突变”的影响;r r r (
2)具有一个V型阀体,即使在小流量或高粘度介质的情况下,也可在整个量程范围内,保证控制的精确性;r r r (
3)防漏耐用的阀座在其外径处衬有带不锈钢内芯PTFE杯形或是O型密封圈,阀座用截面较大的钨钴硬质合金制成,通过一个合金的波纹弹簧进一步增强了阀座的结构;r r r (
4)当阀门关闭时,V型缺口与阀座之间产生楔形剪切作用,并既具有自洁功能又可防止球芯卡死,特别适用于管线结垢冻结或含有纤维和颗粒固体场合。r r r ZSHV气动V型切断球阀适用于高粘度、悬浮液、纸浆等不干净、含纤维介质场合。采用直连方式与执行机构连接,具有结构紧凑、尺寸小、重量轻、阻力小、动作稳定可靠等优点。执行机构根据用户要求配置UNIC、PSQ、HQ、DHL等型号电子式电动执行机构或GTX、AL等气动活塞式执行机构。 r r r
四、ZSHV气动V型切断球阀的技术参数: r r r
r r r | r r 型式r r | r r r 直通式铸造球阀r r | r
r r | r r 公称通径DNr r | r r r 25r r | r r r 32r r | r r r 40r r | r r r 50r r | r r r 65r r | r r r 80r r | r r r 100r r | r r r 125r r | r r r 150r r | r r r 200r r | r r r 250r r | r r r 300r r | r r r 350r r | r r r 400r r | r
r r | r r 阀座直径r r | r r r 20r r | r r r 26r r | r r r 33r r | r r r 40r r | r r r 53r r | r r r 66r r | r r r 86r r | r r r 104r r | r r r 128r r | r r r 170r r | r r r 212r r | r r r 255r r | r r r 300r r | r r r 340r r | r
r r | r r 额定流量系数Kvr r | r r r 25r r | r r r 36r r | r r r 63r r | r r r 100r r | r r r 184r r | r r r 280r r | r r r 400r r | r r r 600r r | r r r 950r r | r r r 1540r r | r r r 2500r r | r r r 3900r r | r r r 6150r r | r r r 9800r r | r
r r | r r 公称压力PNr r | r r r PN1.6、6.4MPar r | r
r r | r r 泄漏量r r | r r r 软密封:≤1.8×10-7×△P×DN.I/h(试验介质为液体:式中△P为压差) 硬密封:≤10-4×阀额定容量.I/h(阀额定容量的计算见附表)r r | r
r r | r r 气源压力r r | r r r 0.4~0.6MPar r | r
r r | r r 连接形式r r | r r r 对夹式、法兰式、管道法兰按JB79-59标准r r | r
r r | r r 适用温度r r | r r r 软密封-40℃~+180℃;硬密封-40℃~+450℃r r | r
r r | r r 球芯转角r r | r r r 90?r r | r
r r | r r 流量特性r r | r r r 近似等百分比(典型曲线图见附录)r r | r
r r | r r 阀体材料r r | r r r 铸钢、铸不锈钢r r | r
r r | r r 球芯型式r r | r r r 部分球带有V形缺口r r | r
r r | r r 阀座材料r r | r r r 聚四氟乙烯、不锈钢司钛莱硬合金r r | r
r r | r r 基本误差r r | r r r ≤全行程的±2%(带定位器)r r | r
r r | r r 回差r r | r r r ≤全行程的2.0%(带定位器)r r | r
r r | r r 死区r r | r r r ≤全行程的0.8%(带定位器)r r | r
r r
r r r
五、ZSHV气动V型切断球阀的外形尺寸: r r r

r r r
r r r | r r 公称通径r r r DNr r | r r r Lr r | r r r H1 r r | r r r H2 r r | r r r L1 r r | r r r L2 r r | r r r D1 r r | r r r n-dr r | r
r r | r r 单作用r r | r r r 双作用r r | r r r 单作用r r | r r r 双作用r r | r r r 单作用r r | r r r 双作用r r | r
r r | r r 25r r | r r r 102r r | r r r 388r r | r r r 359r r | r r r 60r r | r r r 125r r | r r r 56r r | r r r 125r r | r r r 56r r | r r r 85r r | r r r 4-14r r | r
r r | r r 32r r | r r r 102r r | r r r 396r r | r r r 396r r | r r r 65r r | r r r 125r r | r r r 96r r | r r r 125r r | r r r 96r r | r r r 100r r | r r r 4-18r r | r
r r | r r 40r r | r r r 114r r | r r r 406r r | r r r 406r r | r r r 75r r | r r r 125r r | r r r 96r r | r r r 125r r | r r r 96r r | r r r 110r r | r r r 4-18r r | r
r r | r r 50r r | r r r 124r r | r r r 484.5r r | r r r 484.5r r | r r r 95r r | r r r 159.5r r | r r r 123.5r r | r r r 159.5r r | r r r 123.5r r | r r r 125r r | r r r 4-18r r | r
r r | r r 65r r | r r r 143r r | r r r 526r r | r r r 499.5r r | r r r 105r r | r r r 200.5r r | r r r 123.5r r | r r r 200.5r r | r r r 123.5r r | r r r 145r r | r r r 4-18r r | r
r r | r r 80r r | r r r 165r r | r r r 743r r | r r r 536r r | r r r 120r r | r r r 324r r | r r r 150r r | r r r 644r r | r r r 150r r | r r r 160r r | r r r 8-18r r | r
r r | r r 100r r | r r r 194r r | r r r 756r r | r r r 549r r | r r r 140r r | r r r 324r r | r r r 150r r | r r r 644r r | r r r 150r r | r r r 180r r | r r r 8-18r r | r
r r | r r 125r r | r r r 213r r | r r r 809r r | r r r 773r r | r r r 165r r | r r r 398r r | r r r 324r r | r r r 627r r | r r r 324r r | r r r 210r r | r r r 8-18r r | r
r r | r r 150r r | r r r 229r r | r r r 993r r | r r r 793r r | r r r 185r r | r r r 556r r | r r r 324r r | r r r 776r r | r r r 324r r | r r r 240r r | r r r 8-23r r | r
r r | r r 200r r | r r r 243r r | r r r 1033r r | r r r 869r r | r r r 205r r | r r r 556r r | r r r 398r r | r r r 776r r | r r r 398r r | r r r 295r r | r r r 12-23r r | r
r r | r r 250r r | r r r 297r r | r r r 1080r r | r r r 1073r r | r r r 240r r | r r r 642r r | r r r 540r r | r r r 1016r r | r r r 540r r | r r r 355r r | r r r 12-25r r | r
r r | r r 300r r | r r r 338r r | r r r 1117r r | r r r 1113r r | r r r 290r r | r r r 759r r | r r r 540r r | r r r 1294r r | r r r 540r r | r r r 410r r | r r r 12-25r r | r
r r | r r 350r r | r r r 380r r | r r r 1326r r | r r r 1155r r | r r r 330r r | r r r 856r r | r r r 632r r | r r r 1399r r | r r r 632r r | r r r 470r r | r r r 16-25r r | r
r r | r r 400r r | r r r 420r r | r r r 1361r r | r r r 1190r r | r r r 360r r | r r r 856r r | r r r 632r r | r r r 1399r r | r r r 632r r | r r r 525r r | r r r 16-30r r | r
r r
r r r
六、ZSHV气动V型切断球阀的配置附件: r r r 调节型:电气阀门定位器、空气过滤减压器、手轮机构等准切断型:空气过滤减压器、电磁阀、阀位开关、手轮机构等r r r
七、订购须知: r r r r 来电询价、订购时,注明产品类型、应用场所、材质、公称通径、公称压力、工作介质、工作压差、介质温度、电源电压及功率等参数,以便我们为你正确选型及报价。r r r