Brass Back Water Valve

Product Information：

Brass Back Water Valve is a valve that prevents backflow of water and facilitates maintenance and replacement of water meters. This valve is safe to use, mechanically controlled, does not require power supply, and has a long life. The user can set the temperature at the beginning and end of the valve opening and closing.

Brass Back Water Valve is usually installed at the return water end of the radiator. Its main function is to adjust the pressure difference between the inlet and return water, ensure low-noise operation of the radiator and achieve end hydraulic balance, and adjust the resistance balance of each heating loop.

Product Size：

The working principle of Brass Back Water Valve:

In some facilities that use hot water, the valve needs to be opened or closed after the water reaches a certain temperature. For example, in a solar water heating system, the valve opens or closes when the temperature of the water in the solar collector reaches 60°C. The water is stored in the water tank, and the valve is closed if it is below 60°C. This kind of control method is generally realized by electronic control method at present.

The Brass Back Water Valve is equipped with a pressure reducing and stabilizing device. The pressure value can be adjusted with the pressure gauge and automatically maintain the adjusted system pressure; when the system pressure drops, the water injection is automatically opened, and the set pressure is automatically closed to avoid excessive water pressure. High damage system equipment.

Prevent the system water from returning; the automatic water replenishment valve has a check valve to prevent the system water from returning when the water pressure of the replenishing water drops or stops.

Manual shut-off; in order to facilitate the maintenance of system equipment, the automatic water supply valve is equipped with a manual shut-off valve, which can shut off the water supply source.

Drain valve is used in steam pipe network and equipment, can automatically discharge condensed water, air and other non-condensable gases, and prevent water vapor leakage.

The function of the check valve of the tap water pipeline:

Backflow preventer is based on the current water supply network in our country, especially when the backflow pollution of drinking water pipelines is serious, and there is no effective device to prevent backflow pollution, a new type of hydraulic power that strictly restricts the water in the pipeline to only flow in one direction is developed. Control device (backflow preventer).

The backflow preventer product consists of two separated check valves and a hydraulically driven drain valve. Due to the local head loss of the check valve, the pressure in the intermediate cavity is always lower than the pressure at the water inlet. This pressure difference drives the drain valve in a closed state, and the pipeline normally supplies water. When the pressure is abnormal, (that is, the pressure at the outlet end is higher than the middle chamber), even if the two check valves cannot be reversely sealed, the safety drain valve can automatically open to empty the backflow water and form an air partition to ensure upstream water supply Health and safety.