working principle

The pilot valve is controlled by the water force to make the main valve flap play the function of slow closing and noise elimination.

Characteristics

Operate with the pressure of the pipeline itself.
- Simple and reliable design, easy to install and maintain.
- When a water hammer occurs at the downstream outlet end, the main valve closes quickly, preventing the downstream water hammer from damaging the upstream pipe network and equipment.
- At the same time, when the water pump is turned on and the water is in the no-pressure state, the slow-closing check valve slowly opens to supply water downstream, reducing the impact of high-speed water flow on downstream pipelines and equipment.

product manual

The hydraulic control valve is generally divided into two types: diaphragm type and piston type. The company adopts a diaphragm type with a caliber of Φ600mm or less, and a piston type with a caliber of Φ600mm or more.
The hydraulic control valve is a combination of a main valve and an external needle valve, a sound guide valve, etc., and is transformed into a remote control float valve, a fixed water level valve, a pressure reducing valve, and a slow closing check valve in accordance with the purpose, function and location. , flow control valves, pressure relief valves, electric control valves and pump control valves. The main valve is composed of main parts such as valve body, diaphragm, valve stem assembly and valve seat.