Neoflon inserts are available for globe , piston , and swing check discs 备有可用于截止阀，活塞和旋启式止回阀阀瓣的四氟乙烯镶嵌件。
Small size , light weight , the face to distance is one - third of the screwing check valve 体积小，重量轻，其结构长度仅为同规格旋启式止回阀的三分之一。
Most crane swing check valves can be installed in horizontal or vertical , upward flow , piping 大多数美国克雷恩旋启式止回阀可以安装在水平或垂直(流向朝上)的管路上。
One check ball valve part of this type of valve , which includes a check valve and rotary movements kai - check china valve 其中止回阀就属于这种类型的阀门，它包括旋启式止回阀和升降式止回阀。
The swing check to stop reverse - flow is moounted in the disc - lever with little axial and radial play and held by screw nuts 用来阻止逆流的旋启式止回阀是安装在阀板拉杆上，有微小的轴向和径向活动间隙，并用调节螺母固定。
Suspected problem systems should be reviewed with pacific valves before selecting and purchasing swing check valves 如果怀疑系统可能有问题，则在选型和订购旋启式止回阀之前，应该与美国太平洋阀门公司一起重新审核管道系统。
Note : on pump discharge , the preferred check valves are an in - line spring loaded , swing design with lever and weight or lever and spring 注意：在泵排泄口，首选的止回阀是管内弹簧负载，带杠杆和压铁或杠杆和弹簧的旋启式止回阀。
Kai xuan - check cast steel valve in the fully open state , almost unimpeded fluid pressure , the pressure drop through the valve relatively small 旋启式止回阀在完全打开的状况下，流体压力几乎不受阻碍，因此通过阀门的压力降相对较小。
In general a minimum of 10 pipe diameters of straight pipe should be provided upstream of a swing check valve to minimize adverse conditions 通常，旋启式止回阀与上游部件的距离至少要有管道直径的10倍，这样才能够将反作用降到最小程度。
Interference may also occur when butterfly valves are bolted directly to the outlet flange of a swing check , silent check , or reducing flange 当蝶阀直接通过螺栓连接到旋启式止回阀、静音止回阀或缩径法兰的外法兰上时，也可能发生阀瓣受到影响的情况。
