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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。
The FLX-FF4 control check valve is primarily designed for installaton in pump discharge piping where it functions as a spring loaded silent check valve,balancing valve and shut-off valve. FF4控制止回阀在管路中连接在泵的输出端，可以替代泵输出端的消音止回阀、调节阀以及关断阀。
The hydraulically-operated thermostat opens a spring loaded check in the cold water inlet allowing cold water to mix with the hot water. 水压控制的温度调节装置在冷水进口处开启弹簧加压的止回阀，让冷水进入与热水混合。
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。
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。
CAUTION: The check valve spring is in compression. 警告：止回阀弹簧处于压缩状态。
Bolt torques control total spring load. 螺栓扭矩控制所有的弹簧负载。
Check valve guiding shall be plastic to plastic. 止回阀引导装置应该是塑料对塑料。
Remove check valve and valve seal from booster. 从倍力器上卸去逆止阀和阀门密封。
The delivery pressure acting on the spring loaded diaphragm throttles the balanced valve to control the pressure. 水输出压力在弹簧负载隔膜的作用下对平衡阀进行节流调节，以控制水压。
Connect vacuum hose to booster check valve. 连接真空软管到增压器检测阀。
Key removable in locked position only. Spring loaded clip-in pawl. 只能在锁住位置时取出钥匙，弹簧加载的嵌入式掣子。
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。
Connect vacuum hose to booster check valve . 连接真空软管到增压器检测阀。
Cushion spring loaded plastic grips.Steel plate spring.Non-bevelled... 电子剪刀产品型号：Electronics ShearGround carbon steel blades.
Purpose: To test check valve No. 1 for tightness. 目的:检测止回阀1号的密封性。
Spring loaded for fast closure, eliminating reverse flow slam and water hammer. 负载弹簧用于快速关闭,消除逆流冲击和水锤。
Sticky outlet check valve poppet. 1检查过滤的进水管线。