Z641H气动闸阀简介

              气动闸阀具有优良的切断性能，在工业领域得到广泛应用。公称压力有1.6、6.4MPa，口径由40至600mm，温度范围为-196℃至500℃。

Z641H气动闸阀特点

              气动闸阀的执行机构具有正、反两种作用功能，故阀的开、关方式有气开、气关两种作用方式。  闸阀采用金属接触式独特结构、动作可靠，具有极高的切断性能，比常规的切断阀优越。允许泄漏量达到10-8×KV。  使用范围广，温度可由-196℃至500℃，口径小至40mm，大至600mm.  阀座有平行、60°V型切口和90°V型切口三种，适应不同使用场合需要。
              气动闸阀  阀体可用夹套形式保温，用以介质冷却后易堵塞，凝结或结焦场合使用。

Z641H气动闸阀选用材料

1.          阀体、阀盖：ZG230-450  阀板：1Cr18Ni9Ti堆焊司太莱合金  阀杆：1Cr18Ni9Ti  闸板：1Cr18Ni9Ti堆焊司太莱合金  气缸：无缝钢管  活塞：铸铝合金  密封圈：耐油O型橡胶
2.          垫料：聚四氟乙烯，柔性石墨

Z641H气动闸阀主要技术参数


公称通径DN(mm)      40      50      80      100      125      150      200      250      300      350      400      450      500      600        
额定流量系数KV      170      270      510      940      1400      2200      3500      8500      9600      13000      17000      55000      27000      38000        
公称压力PN(MPa)      1.6  6.4
活塞直径D(mm)      120      160      280      360      420      540
操作压力P(MPa)      0.3~0.5
介质温度t(℃)      标准：-20~250  高温：250~500  低温：-196~-20
允许泄漏量      10-8×KV
流量特性      近似直线
动作方式      继续、连续（配阀门定位器）
                                                                                                                                                  
                                                                                                                                                                          
Z641H气动闸阀允许压差


DN(mm)P(MPa)D(m)      40      50      80      100      125      150      200      250      300      350      400      450      500      600
120      0.3      1.95      1.18                                                                                                
        0.4      3.08      2.03                                                                                                
        0.5      1.06      2.88                                                                                                
160      0.3                      1.35      0.93      0.63                                                                        
        0.4                      2.04      1.46      0.99                                                                        
        0.5                      2.04      1.99      1.35                                                                        


            
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