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A bent pipe fixed conical valve is a valve featuring an inverted conical plug valve core structure, hence also known as a conical valve or an energy dissipation valve. It is primarily used for bypass valves in hydraulic turbine generators, free discharge valves, and continuous flow rate control, and is also suitable for agricultural irrigation and other applications.

Working Principle

The bent tube fixed conical valve adjusts flow by changing the distance between the moving valve sleeve and the fixed conical body. The annular space between the sleeve and the cone is used for flow release, with the valve sleeve moving forward and backward along the flow direction via a screw drive, thereby regulating the flow. When fully open, the flow coefficient can reach over 0.85.

Structural Features

The bent tube fixed conical valve features the following characteristics:

Excellent energy dissipation effect: Energy is dissipated through friction between water and air, as well as by the vortex formed upon entering the water, reducing impact on downstream pipelines or structures.

Flow Control: The conical design ensures a linear relationship between flow and valve core displacement, offering excellent regulating performance.

Simple structure, easy operation: The full valve's weight is supported by the root anchoring bolt, ensuring good structural load conditions.

Application Scenarios

Bend pipe fixed conical valves are widely used in the following scenarios:

Turbine-generator set: Used as a bypass valve or discharge valve for regulating and controlling flow.

‌Agricultural Irrigation: Suitable for agricultural irrigation systems due to its excellent energy dissipation effect and flow control capabilities.‌