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How is the opening height of the globe valve determined?
The author: Time:2020/7/13

         截止阀设计时,一般应计算如下项目:阀体壁厚;密封面上总作用力及计算比压;阀杆强度;阀瓣强度;中法兰连接螺栓的强度(常温时、初加温时、高温时的强度);中法兰强度;阀盖强度;支架强度;手轮总扭矩及圆周力。
         并且在截止阀开启时,应以开启高度的帘面积计算,当开启高度的帘面积等于阀门通道面时,即阀瓣的开启高度达到阀门公称通径的25%~30%时,流量即已达到较大,亦即表明阀门已达到全开位置.所以,截止阀的全开位置应该按阀瓣的行程来确定。截止阀的开启高度也应该按阀瓣的行程来确定。

 

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