The check valve is an important control element used to prevent fluid backflow. It is usually installed at the outlet of the water pipe and effectively prevents the water from flowing back. There are many types of check valve, today the main introduction is the dual plate check valve and swing check valve in the soft sealed check valve. Soft sealing check valve uses flexible sealing material to seal the valve seat to make it more reliable.
First, introduce the dual plate check valve. A dual plate check valve is a mechanical device used to control the flow of liquid or gas. It works by rotating the valve to prevent the fluid backflow. Dual plate check valves are usually used in water piping, hydraulic systems, and pneumatic systems to prevent fluid backflow and leakage.
The dual plate check valve consists of two cloes, one called the inlet and the other called the outlet flap. When the inlet disc rotates, the disc will open to allow fluid passage. Then, when the outlet disc rotates, the disc closes to prevent the fluid from flowing back to the inlet pipe. Therefore, the double-plate check valve can effectively control the flow rate of the fluid. It is simple and easy to install and maintain. They are usually made of metal and have good corrosion resistance and wear resistance.
Dual plate check valve has been widely used in various industries and industries. In the oil and gas industry, they are used for storing and transporting liquids and gases. In the chemical industry, they are used to control the flow rate of chemicals. In the power and energy industries, they are used to protect electrical equipment and the power grid. In addition, dual plate check valves are also widely used in domestic and commercial places to control the flow of fluids such as water, gas and air.
The second is the swing check valve. A swing check valve is a valve used to prevent the flow from flowing back. It works because when the water passes through the swing check valve, the flow is exerted by an external force that makes the disc rotate along the guide groove of the seat, preventing the disc recovery and preventing the flow from flowing back. Swing check valves are usually used in water supply and drainage pipeline systems, especially in high-rise buildings, residential communities, factories and other places that need to prevent water backflow. The valve has simple structure, easy installation, reliable use, and is widely used in the water pipe system.
Although the structure of the valve is simple, some problems need to be paid attention to during use. The check valve is a very important control element, which can effectively prevent the fluid backflow and protect the safe operation of the water system. Although the structure of the check valve is simple and easy to use, the following points should be paid attention to during installation: first, the check valve should be installed on the horizontal pipe and kept away from the expansion valve and pump; secondly, the size of the check valve should match the size of the pipe; finally, the check valve should be correctly installed in the direction of water flow.
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Post time: Aug-24-2023