0577-67372228 67372222
0577-67372228 67372222
PRODUCT NAME：
一、结构与特点
H42立式止回阀严格按 API6D、GB/T12235 标准设计制造,本系列阀门正常处于关闭状态，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，故起止回作用。
二、应用规范
1、设计制造按12236—89
2、结构长度按SDV公司规定
3、法兰型式及尺寸JB／T79 94
4、阀门检查和试验按API STD 598
三、主体材质
CF8、cF3、CFSM、CF3M WC6
PRV PRODUCT：H44H旋启式止回阀
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