What should we pay attention to when designing the valve body flow path of the check valve

A test valve's body float path layout is a essential aspect of its overall performance and capability. The flow route design impacts the hydrodynamic conduct, fluid loss, strain drop, and structural strength of the valve frame under normal operation and opposite flow situations.

Runner kind

Straight flow channel

The immediately-via drift channel refers back to the layout in which fluid flows in a immediately line whilst passing via the valve frame. This layout is typically used in situations of low float charge and occasional pressure drop, that can reduce the resistance of the fluid and improve the glide capacity. However, the directly-through go with the flow channel may also produce a massive water hammer impact in the course of counterflow, so unique control and layout are required.

Curved flow channel

The curved drift channel permits the fluid to drift through curves when passing thru the valve body. This design can gradual down the fluid velocity and decrease the water hammer effect, but might also boom the resistance of the fluid. Under high-pace waft conditions, curved flow channels can reduce strain fluctuations and enhance system balance.

Runner shape

Straight glide channel form

In a instantly-thru float channel, the go-sectional shape of the waft channel may be square, circular, and many others. Rectangular go-sections are commonly used for huge flow fees and low-pace flows, while circular go-sections have much less fluid resistance and are suitable for excessive-speed flows.

Curved waft channel form

The form of the curved float channel is usually arc-shaped to make certain that the fluid reduces resistance when flowing within the curve. The selection of the radius of curvature and radian of the glide channel calls for complete attention of things including waft charge, stress drop, and water hammer impact.

Flow channel smoothness

The smoothness of the internal surface of the waft channel is essential to reducing fluid resistance and decreasing pressure drop. The smooth float channel surface can lessen frictional resistance and improve the efficiency of fluid passage. The surface high-quality of the go with the flow channel may be advanced with the aid of using floor remedy generation or choosing substances with better smoothness.

Valve seat design

Check valve seat

The valve seat is the component inside the valve body this is in contact with the valve disc, and its design without delay affects the sealing performance of the take a look at valve. Reasonable valve seat layout can reduce medium leakage and make certain an amazing sealing impact while the valve is closed.

Valve seat perspective

The attitude of the valve seat typically relies upon on the nature of the fluid and the working conditions. Common valve seat angles encompass 45 stages and 60 tiers. Choosing one-of-a-kind angles can affect the outlet and closing force and sealing overall performance of the valve disc.

Pressure drop and fluid loss

Fluid will produce a certain stress drop and fluid loss while passing through the check valve. Reasonable flow channel layout can lessen those losses and improve system performance. Factors including the go-sectional vicinity, bending attitude, and valve seat shape of the waft channel will have an effect on the strain drop and fluid loss.