What is check valve ?
Check valve is a one-way valve that fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back, commonly known as a one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow, or used in pneumatic systems to prevent reverse flow of compressed air.
There are two types of check valves: straight-through and right-angle. The straight-through check valve is installed on the pipeline with a threaded connection. Right-angle check valves have three forms: threaded connection, plate connection and flange connection.
How to install the check valve?
1. Installation location
The check valve is a check valve. The installation position of the swing check valve is not restricted. It is usually installed in a horizontal pipeline, but it can also be installed in a vertical pipeline or an inclined pipeline.
2. Installation considerations
When installing a check valve, pay special attention to the flow direction of the medium, and make the normal flow direction of the medium consistent with the arrow direction indicated on the valve body, otherwise the normal flow of the medium will be blocked. The bottom valve should be installed at the bottom of the pump suction line. When the check valve is closed, water hammer pressure will be generated in the pipeline. In severe cases, it will cause damage to the valve, pipeline or equipment. Especially for large-mouth pipelines or high-pressure pipelines, it should be a high-level attention to the check valve selection . The check valve is only a one-way opening and closing valve that prevents the backflow of fluid media on various pipelines or equipment.