SIPHON BREAKER VALVES

Siphon Breaker Valves are mounted at the top (the highest point) of siphon-typed water conveyance pipes. They serve as swift-reacted valves. They remain open when power is down. Sharing the electricity lines with the master units, they are turned off and on synchronously with the system.

The valve is structurally divided into five parts: water cavity, air cavity, main and sub electromagnetic control unit and electric control unit. The water cavity bounds with the matching water pipes. The air cavity opens to the air. The main and sub electromagnetic parts are connect by the left and right side of the valve. And the electric control box is installed nearby on request.

When the electric module is on power, the main axle moves leftwards under the suction power generated by both the main and sub electromagnetic units. Meanwhile, sealing rings of two discs mounted on the axle will be dragged towards the seats resulting in a sealing function. In this means, the water and air cavities are separated, which has the pipes underneath reach the siphon state.

When the electric module is off power, the main axle, together with its discs, moves rightwards under the thrust power caused by the energy-stored springs when the electromagnets are put apart. The discs and the seats are thus separated right away. Hence, the air is pouring into the water cavity via the air room due to the great pressure difference between the atmosphere and the vacuum condition inside the pipes. Siphon state is broken and the flow is, hereafter, stopped.

Two series are available: 1) HX-DP Open-typed; 2) HX-QP Shut-typed.