1. Definition and Basic Structure
Reduced diameter floating ball valve (or reduced floating ball valve) is a special type of floating ball valve, the diameter of the through hole of the sphere is slightly smaller than the inner diameter of the pipeline, making it applicable to situations where controlling the flow rate or adapting to a pipeline system with a high pressure difference is necessary.
Core Features:
Reduced bore design: The diameter of the ball passage is reduced (usually 80-90% of the inner diameter of the pipeline) to optimize stability under high pressure differential conditions by reducing the cross-sectional area of the flow.
Floating sealing: The ball moves to the valve seat at the outlet end under the medium pressure, forming a sealing specific pressure and guaranteeing two-way sealing.
2. the Application Scene and Advantages
Applicable Fields:
High pressure difference system: Such as natural gas pressure regulating stations, chemical reactor outlet pipelines, reducing the design can reduce the impact of flow rate fluctuations on the sealing surface.
Space-restricted environment: Due to the compact structure of the valve body, it is suitable for scenes with limited installation space.
Performance Advantages:
High-pressure stability: Reduced diameter reduces the direct impact of the medium on the valve seat, suitable for high-pressure conditions ≤ 32.0MPa.
Cost-effective: Compared with full bore ball valves, the reduced bore design can reduce material costs, while meeting the needs of specific operating conditions.
3. Comparison with full bore floating ball valves
| Terms | Reduced Bore Floating Ball Valve | Full Bore Floating Ball Valve |
|---|---|---|
| Via diameter | Slightly smaller than the inner diameter of the pipe (80-90 per cent) | Equal to the inner diameter of the pipe |
| Flow resistance characteristics | Higher (increased flow rate) | Very low (near zero pressure drop) |
| Applicable pressure | High pressure difference (≤32.0MPa) | Medium and low pressure (≤16.0MPa) |
4. Main Dimensions
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