Hose Connection Vacuum Breakers 软管连接真空轧碎机
Pressure Vacuum Breakers Assembly 压力真空断路器组件
Back Siphonage Backflow Vacuum Breakers 倒虹吸回流真空关闭阀
outdoor vacuum breakers 户外真空断路器
Pipe-Applied Atmospheric-Type Vacuum Breakers 应用管道的大气式真空制动器
Vacuum Breakers and Check Valves 真空断路器和单向阀真空短路阀和止回阀
vacuum circuit breakers 真空馈电开关
vd vacuum circuit breakers vd4真空断路器
vd 4 vacuum circuit breakers vd真空断路器
Vacuum breakers fail supposing that leaks permit air to enter the interrupting chamber.
假如空气通过裂痕进入灭弧室，真空断路器就失灵。
Simplified design: Vacuum breakers and contactors are simpler in design than original air break devices.
被简化的设计：真空破碎机和接触器是简单在设计比原始的空气断裂设备。
The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies.
TK - DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
应用推荐