您要查找的是不是：
- CAUTION: The check valve spring is in compression. 警告：止回阀弹簧处于压缩状态。
- 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:在泵的排泄口处,首选的止回阀是管内弹簧负载,旋启式,配置杠杆和重量或杠杆和弹簧。
- Check valve guiding shall be plastic to plastic. 止回阀引导装置应该是塑料对塑料。
- On pump discharge, the preferred check valves are in-line spring loaded, swing design with lever and weight or lever and spring. 在泵出口处,首选止回阀是管内弹簧负载,配置杠杆和重量旋启式结构,或杠杆和弹簧旋启式结构。
- Remove check valve and valve seal from booster. 从倍力器上卸去逆止阀和阀门密封。
- Connect vacuum hose to booster check valve. 连接真空软管到增压器检测阀。
- To test for tightness of second check Valve. 检测第二止回阀的密封性。
- ANSI FLANGED SWING CHECK VALVE CLAS. 美标法兰止回阀。
- Reassemble the Check valve modules. 重新组装止回阀模块。
- INSPECT MANUAL VALVE LEVER FOR WORN PLASTIC INSULATION OR STEEL BURR WORN THROUGH PLASTIC. 检查手动阀杆磨破了塑料绝缘或硬毛刺磨破了塑料绝缘。
- Connect vacuum hose to booster check valve . 连接真空软管到增压器检测阀。
- Purpose: To test check valve No. 1 for tightness. 目的:检测止回阀1号的密封性。
- Valve lever must be tripped at least once a year to ensure that waterways are clear. 阀杆每年必须至少操作一次，以确保水路畅通。
- Sticky outlet check valve poppet. 1检查过滤的进水管线。
- The sleeve also rises up the shaft, and when it rises beyond a certain point, it operates a throttle valve lever, and so reduces the flow of steam. 套筒也随之顺轴上升。而当套筒升过一定的点时，套筒就会带动一个节流阀的阀杆进入工作，这样就能减少蒸汽的流量。
- Control supply line water pressure. Install a soft seated, spring loaded, check valve upstream of the assembly. 控制供应管道的水压。在总成的上游安装一个软阀座,弹簧负载止回阀。
- Remove the four screws holding the first check valve cover. 拆卸固定第一止回阀阀盖的四个螺丝。
- A check valve may be required ahead of the backflow preventer. 此时在防回流阀前面可能需要安装一个止回阀。
- Crane cast steel swing check valves can be furnished with outside lever and adjustable weight when so ordered. 如果用户需要，美国克雷恩旋启式止回阀可以配置外置杠杆和调节压铁。
- Service the second check valve using steps 2 through 12. 按照第2步至第12步维修第二止回阀。
