Check valves, also known as check valves and check valves, are mainly used for operation in hydraulic systems or for operation in pneumatic systems to prevent reverse flow. Then follow the small series together to see the relevant knowledge of the one-way valve , take a look at the working principle of the one-way valve and other knowledge.
What is a Check Valve
One-way valves are divided into two types, one is a straight-through type and the other is a right-angle type. Straight-through check valves are threaded on the piping. Right-angle check valves are available in threaded, plate and flanged versions. A pilot-operated check valve is also called a lock-up valve or a pressure-retaining valve. It is the same as a check valve to prevent the reverse flow of oil. However, when the oil flow in the hydraulic circuit is required to reverse flow, the oil pressure can be controlled to open the check valve so that the oil flow can flow in both directions.
Check valve works
One-way valve refers to a valve that automatically opens and closes the valve flap by means of the medium itself to prevent the back flow of the medium. It is also called a check valve, a one-way valve, a backflow valve, and a back pressure valve. The one-way valve is an automatic valve whose main function is to prevent the reverse flow of the medium, prevent the reverse rotation of the pump and the drive motor, and release the medium of the container.
Check valves can also be used on pipelines where the pressure may rise above the system pressure of the auxiliary system. The one-way valve can be mainly divided into a swing-opening one-way valve (depending on the center of gravity rotation) and a lifting one-way valve (moving along the axis).
The role of the one-way valve is to allow only the medium to flow in one direction, but also to prevent the opposite direction of flow. Normally, this type of valve operates automatically. The valve flap is opened by the fluid pressure flowing in one direction. When the fluid flows in the opposite direction, the fluid pressure and the self-closing flap of the valve flap act on the valve seat to shut off the flow.
Check valve structure function
The opening and closing parts are opened or closed by means of the medium flow and force, so that the valve for preventing the medium from flowing back is called a one-way valve. The one-way valve belongs to the automatic valve type and is mainly used for the one-way flow of the medium on the medium. It only allows the medium to flow in one direction to prevent accidents.
The role of the one-way valve is to allow only the medium to flow in one direction, but also to prevent the opposite direction of flow. Normally, this type of valve operates automatically. The valve flap is opened by the fluid pressure flowing in one direction. When the fluid flows in the opposite direction, the fluid pressure and the self-closing flap of the valve flap act on the valve seat to shut off the flow.
The one-way valve is divided according to the structure and can be divided into three types: lift-type check valve, swing check valve and butterfly check valve. Lifting check valve can be divided into vertical and horizontal two. Swing check valve is divided into single-valve, double-valve and multi-valve. The butterfly check valve is a straight-through type. The above kinds of one-way valves can be divided into three types: threaded connection, flange connection and welding.
The above is the working principle of the one-way valve and the one-way valve structure brought by Xiaobian to everyone. After reading it, I have some understanding of the aspect of the one-way valve. I understand that there are always no disadvantages. I hope you can enjoy the introduction of the Xiaobian. , If you want to know other related information, please continue to pay attention to this site, more exciting so stay tuned!
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