Apr. 23, 2023
The check valve is also called one -way valve or inverse check valve. The bottom valve of the water pump water absorption is also a check valve class. The opening and closing parts are opened or closed by the medium flow and the force to prevent the valve from the back flow of the medium. The check valve is an automatic valve class, which is mainly used for the one -way pipeline of the medium. It only allows the medium to flow in one direction to prevent accidents.
The check valve is divided by the structure, which can be divided into three types: lifting valve, rotating valve, and butterfly -type check valve. Lift
The downgraded valve can be divided into two types: vertical check valve and residial check valve.
The spin -proof valve is divided into three types: single -petal check valve, double -petal check valve, and multi -petal check valve.
The butterfly check valve is a direct way to check the return valve, and the above -mentioned check valve can be divided into three types: thread connection check valve, flange connection check valve, and welded return valve in the connection form.
The installation of the check valve should pay attention to the following things:
1. Do not allow the check valve to withstand weight in the pipeline. Large -scale check valve should be supported independently so that it is not affected by the pressure generated by the tube system.
2. When installing, the direction of the medium flow should be consistent with the direction of the arrow of the valve body.
3. The lifting valve of the lift vertical petals should be installed on the vertical pipe.
4. The lift horizontal petal check valve should be installed on the horizontal pipe.
What is the vertical check return valve?
The vertical check valve is widely used in a system that needs to prevent the medium back flow, such as the water pump outlet, the hot water replenish end, and the absorption end of the centrifugal water pump. Its role is to prevent the various consequences that may be generated by the medium back flow. For example, if the exit of the pump is not installed with a vertical check valve, high -speed return water will cause a huge impact on the water pump impeller when the pump suddenly checks; If the formal check valve (bottom valve), the pump is required every time you boot.
