Reduced bore Ball Valve (also known as Reduced Diameter Ball Valve or Small Bore Ball Valve) refers to a type of ball valve whose internal channel diameter is smaller than the diameter of the connected pipeline. The main purpose of this design is to ensure the flow capacity of the fluid while reducing the valve size, lowering the manufacturing cost, and increasing the flow velocity during fluid passage, thereby achieving a better fluid control effect.
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Reduced bore ball valve Working Principle
The working principle of a reduced-bore ball valve is similar to that of a standard ball valve, mainly composed of a valve body, ball, seat, and handle (or actuator). When the handle is rotated 90 degrees, the through-hole on the ball aligns with the channels at both ends of the valve body, allowing fluid to flow smoothly. Conversely, when the handle is rotated to the closed position, the ball tightly seals the seat, preventing fluid flow. The difference lies in the diameter of its ball's through-hole, which is smaller than the diameter of the connecting pipes at both ends of the valve body. This causes the fluid to undergo a "contraction-expansion" process when passing through the ball valve; that is, it first contracts from the larger pipe diameter to the smaller ball through-hole diameter, and then expands back from the ball through-hole to the larger pipe diameter.
Features and Advantages of Reduced-Bore Ball Valves
Space Saving: Because the diameter of the ball's through-hole is smaller than the diameter of the connecting pipe, its overall size can be designed to be more compact, making it suitable for installation environments with limited space.
Cost-Effectiveness: Compared to a standard ball valve of the same specifications, a reduced-bore ball valve requires less material and has lower manufacturing costs, especially for large-diameter valves, where the cost advantage is more significant.
Increased Flow Rate: When fluid passes through a reduced-bore ball valve, the "contraction-expansion" process increases the flow rate, helping to improve fluid transport efficiency.
Reduced Pressure Drop: Although the flow rate increases when fluid passes through a reduced-bore ball valve, the pressure drop is not significant in actual use due to the good sealing between the ball and the valve seat, maintaining good fluid control performance.
High Adaptability: Widely applicable to transport systems for various media such as water, oil, and gas, especially suitable for applications requiring rapid switching and specific fluid flow rates.
Reduced bore ball valve Application Scenarios
Due to its unique design and excellent performance, reduced-bore ball valves are widely used in many industries, including but not limited to:
Oil and Gas Industry: Used for emergency shut-off and flow regulation in oil and gas field extraction and pipeline transportation.
Chemical Industry: Used as safety valves or control valves at the inlet and outlet of chemical reactors and storage tanks.
Pharmaceutical Industry: Ensures precise control of fluids during drug production, preventing contamination and leakage.
Food and Beverage Industry: Ensures the safe transport of food-grade materials, meeting hygiene standards.
Urban water supply and drainage system: used in places such as waterworks and sewage treatment plants to achieve effective management of water resources.
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