Close valves at both inlet and outlet ends 进、出水端阀门关上。
2.
The experimental results show that the pressure at the outlet end of pipeline is lower than that of the other end 结果表明，处于管道出气口一端的压力小于管道另一端的压力。
3.
Alignment . the axes of the threaded inlet and outlet ends shall be [ b ] [ red ] within 1 . 0 of the angle specified [ / red ] [ / b ] 对齐。带螺纹的流体入口端面与出口端面的轴线允许所规定的角度的1 . 0上下范围内波动。
4.
Remove the two check modules by pressing firmly from the outlet end ( end with wrench pads ) . o - ring seals will be removed with the removal of modules from the body 从出口端（带有板钳基座的端口）稳稳地压下，拆卸两个止回模块。 o形环密封将随着模块的拆卸从阀体上拆卸下来。
