Supply inclined disc check valve

Exhaust check valve is a type of valve used to prevent the backflow of medium in pipelines, mainly used in systems that require exhaust (or vacuum) environment (such as turbine exhaust systems, vacuum pipelines, condensate systems, etc.).

Its core functions are:

Unidirectional flow: allows the medium (gas, vapor, or liquid) to flow in a single direction, preventing reverse reflux.

Vacuum protection: Maintain stable system pressure under pumping or vacuum conditions, prevent external air or medium from flowing back into the equipment, and avoid damage to the unit (such as the steam turbine) or affecting system efficiency.

Structural characteristics of inclined disc Check valve

Valve body: usually made of cast steel, cast iron or stainless steel, with a straight through structure and low fluid resistance.

Valve disc: It is shaped like a disc or a semicircle and is connected to the valve body through an inclined pin shaft. The axis of the valve disc is at a certain angle to the axis of the pipeline, rather than perpendicular.

Valve seat: located inside the valve body, it matches with the sealing surface of the valve disc to achieve bidirectional or unidirectional sealing.

Key design advantages

Smooth opening and closing: The valve disc is installed at an angle, and the fluid impact force is dispersed when it is opened. When it is closed, the valve disc slowly falls back along the inclined trajectory, reducing the water hammer effect, especially suitable for high flow and high velocity pipeline systems.

Low flow resistance: Optimized valve disc rotation angle, larger flow area when medium passes through, and lower pressure loss than traditional Swing Check Valves.

Strong vibration resistance: The inclined axis design causes the center of gravity of the valve disc to shift, resulting in higher stability during fluid fluctuations and less susceptibility to sealing surface wear or abnormal opening and closing due to vibration.