The structure principle of Slanted Seat Check Valve

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Apr 18,2022

The Slanted Seat Check Valve has a mesh disc closure with the disc rotating around the rocker axis and offset from the seat surface. When the valve disc is turned down, it closes when it is in close contact with the valve seat, and when it is opened, the valve disc rises from the valve seat. Because the movement track of the center of gravity of the entire valve disc is only between the fully open and closed positions, and the stroke is very short, the swash plate check valve closes quickly.

quality Slanted Seat Check Valve from China manufacturer
The disc of the Slanted Seat Check Valve is a butterfly-shaped swash plate installed on the valve shaft, and the valve seat is a special floating, elastic metal hard-sealed valve seat, so as to ensure that the valve seat can automatically adjust and align with the valve disc.
The sealing surface of the valve seat of the Slanted Seat Check Valve is a part of the inclined cone. The sealing line formed between the valve seat and the valve disc is an approximately elliptical curve. The angle between the plane where the curve is located and the centerline of the valve flow channel is 60°; approximately The center of the long axis of the elliptical sealing line and the axis of the cone form an angular eccentricity, that is, the second eccentric angle formed between the axis of the cone where the sealing surface of the valve seat is located and the centerline of the flow channel of the valve body is 15°~20°; The axis of the valve rotating shaft forms an eccentricity relative to the axis of the cone, and is also in an eccentric position relative to the plane where the sealing line is located, forming an eccentricity.
The Slanted Seat Check Valve manufacturer tells you that when the pressure of the medium reaches its working pressure, the valve disc will open, and when the pressure of the medium decreases, the butterfly swash plate valve will automatically close. Because the valve disc and the metal valve seat have the characteristics of triple eccentric butterfly valve, this structure enables the valve disc to perform pendulum motion. Neither the disc bevel seat nor the funnel disc engages or disengages without friction or sliding contact. The Slanted Seat Check Valve manufacturer tells you that it can quickly seal with the valve seat without impact and collision without external force when it is closed. At the same time, it has the characteristics of large flow and small flow resistance.

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