进口立式止回阀 垂直安装逆止阀 美国RETZ瑞茨

　　品牌：retz瑞茨/美国，我们一直致力于流体控制领域的持续创新，始于2005……

　　150lb/pn16/10k japanese standard checkvalve立式止回阀，垂直安装逆止阀阀瓣在流体压力作用下开启，流体从进口侧流向出口侧。当进口侧压力低于出口侧时，阀瓣在流体压差、本身重力等因素作用下自动关闭以防止流体倒流 vertical check valve, vertically installed check valve disc opensunder fluid pressure, and fluid flows from the inlet side to the outlet side.when the pressure on the inlet side is lower than that on the outlet side, thevalve disc automatically closes under factors such as fluid pressure differenceand its own gravity to prevent fluid backflow

　　进口立式止回阀 垂直安装逆止阀性能说明 function deion

　　立式止回阀（垂直安装逆止阀）由于采用弹簧支撑阀芯，故采用立式安装。正常处于关闭状态，由于管线中进口端介质的压力作用，而克服弹簧阻力使阀门开启。当进口端介质压力低于出口端时，弹簧将阀芯推向阀座而使阀门关闭，阻止介质逆流 retz the vertical installation of check valve (vertical checkvalve) is adopted because the valve core is supported by spring. the valve isnormally closed, and the valve is opened by overcoming the spring resistancedue to the pressure of the medium at the inlet end of the pipeline. when themedium pressure at the inlet end is lower than that at the outlet end, thespring pushes the valve core to the valve seat to close the valve and preventthe medium from flowing back

　　执行标准 executive standards

　　设计规范design rating∶ api6d、bs1868、asme b16.34、din3356、en 13709、jis b2071

　　结构长度face to face∶asme b16.10、din3202， en 558-1, din 3202, iso 5752、jis b2002

　　连接法兰flanged ends∶asme b16.5、din2543-2546，en 12267，en 1092-1、jis b2220

　　试验与检验inspection &testing∶api598、en 12266, iso 5208，din3230、jis b2003

　　压力-温度pressure- temperature：asme b16.34

　　通径:2”~ 12” (dn50~300)

　　压力等级：150lb/pn16/10k，300lb/pn40/20k

　　适用温度：-40~425℃

　　阀体: 碳钢，不锈钢

　　阀瓣 disc：304/316

　　填料 packing：ptfe

　　阀杆 stem:304/316