Working principle：

With the continuous development of modern high-rise buildings and the water industry, as well as the increasingly high requirements of users, our company has successfully produced the second generation of double control room multiple valves on the basis of the first generation of hydraulic control valves in combination with the actual situation. Functional hydraulic control valve. It can automatically ensure the safe operation of the pipe network after a one-time adjustment before use according to the different use environments. The valve body adopts a streamlined design, and all castings are treated with derusting and plastic spraying. All moving parts are made of anti-corrosion materials, all external conduits and pilot valves are made of copper or stainless steel, and the assembled valve does not need to be painted. All surfaces in contact with the medium have good corrosion resistance. By changing the joint form of the external pilot valve and the conduit, it can be evolved into a water level control valve, a noise reduction/hammer reduction slow opening/slow closing check valve, a safety pressure relief valve, an electric remote control valve, etc. According to the different medium and pressure, there are two kinds of piston type and diaphragm type for users to choose.

The main feature of this type of valve is to use the internal pressure in the pipeline to control the opening and closing of the main valve disc through the pressure difference between the upper and lower chamber control chambers, so as to achieve the purpose.

Features：

1. It has the function of slow opening, which can solve the traditional problem of artificially closing the valve and opening the pump

2. With slow closing function, the closing time can be adjusted manually, and the slow closing can be automatically realized to eliminate water hammer

3. It has a good non-return function, and the rubber with good elasticity and high wear resistance is used as the sealing material, and it can be watertight after closing.

4. The action is sensitive and there will be no loss of control.

5. No manual operation is required, and it works automatically during the whole process of pipe network operation

6. Easy maintenance, no need to dismantle the whole valve from the pipeline, only local inspection is needed to find out the cause of the solid failure during repair.

7. The exterior of the valve and all corrosive parts are treated with electrostatic spraying, which will not rust when used in sewage for a long time.

8. The uniformity and performance of vertical and horizontal installations in the pipeline remain unchanged.

Material of main parts: