Hydraulic control valve is a valve that uses the pressure of water to control various operations in the fluid conveying system. What are the main functions of the hydraulic control valve? Take a look with the hydraulic control valve manufacturer.
1. Water level control
In many water storage facilities, hydraulic control valves can automatically control the water level. For example, the float ball valve is a common hydraulic control valve, when the water level in the tank drops, the float ball drops, driving the valve to open, so that water flows into the tank; When the water level rises to the set height, the float rises to close the valve, thus keeping the water level stable within a certain range. This plays a key role in ensuring the reserve of domestic water, fire water, etc., to avoid water overflow due to high water level, or the water level is too low to meet the water demand.
2. Flow control
The hydraulic control valve can adjust the flow of fluid according to the system requirements. Taking the self-operated flow control valve as an example, it can automatically adjust the valve opening through its own structure and the pressure change of the water flow. In some central heating system or water supply system, the flow can be adjusted to ensure that each user or branch pipeline to obtain the appropriate flow distribution.
3. Pressure control
Stabilizes the pressure in the system. For example, in the water supply system of some high-rise buildings, the water pressure of the ground floor and the upper floor is very different due to the different height of the floor. As a hydraulic control valve, the pressure reducing valve can reduce the excessive pressure to the appropriate range, ensure that the water supply pressure can meet the requirements of the water equipment in each floor, and avoid damage to the pipeline and water equipment due to high pressure. In some fire fighting systems that need to maintain a certain pressure, the constant pressure valve can maintain the pressure of the system at the specified value to ensure that the fire fighting equipment can work normally when needed.
4, prevent water hammer phenomenon
A water hammer is a pressure fluctuation caused by a sudden change in flow rate in a piping system. The slow closing check valve in the hydraulic control valve can effectively prevent the phenomenon of water hammer. When the water flow suddenly stops (such as the pump suddenly stops working), the slow closing check valve will not be closed immediately, but slowly close the valve, so that the speed of the water flow gradually decreases, thereby buffering the sharp change in pressure, protecting the pipeline system, water pump and other equipment from damage caused by the water hammer, and extending the service life of the equipment and pipes.
5, remote control and automated operation
Some hydraulic control valves can be combined with the control system to achieve remote control and automatic operation. In some large hydraulic projects or industrial fluid delivery systems, by installing sensors and control devices, the operator can remotely monitor and adjust the status of the hydraulic control valve in the control room.
