The fixed cone valve is a discharge valve designed for high-head, high-flow conditions, operating without vibration or cavitation. It is commonly used in the following systems: - Emergency spillway valves for hydroelectric generating units (bypass free discharge valves); - Reservoir dam discharge valves; - Flow control valves for reservoir supply pipelines; - Pressure regulation valves for various zones in municipal water supply systems.
The fixed cone valve features a stationary cone designed to align with fluid dynamics principles. This cone is supported by blades. Guided by the cone's shape, the discharged water spreads at a wide conical angle and disperses into a fine spray. This creates extensive friction between water and air, resulting in atomization and excellent energy dissipation. In fixed cone valves equipped with a flow guide hood, water is ejected through multiple spray orifices where streams collide. This mutual impact of water columns causes velocity energy to dissipate substantially. This significantly reduces the impact of drainage water flow on downstream pipelines, waterways, or structures.
| Part Name | Valve body | Casing gate | Valve seat | Sealing surface |
| Materials | Cast Steel | Stainless steel | Stainless steel | Rubber |
| Part Name | Guide rail | Stop block | Air deflector | Vertebral body |
| Materials | Stainless steel | Stainless steel | Cast Steel | Cast Steel |
Model Selection Recommendations