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Ball Valves

KEFA Ball Valves are mechanical devices used to control the flow of liquids or gases through a pipe or tubing system. They consist of a hollow, spherical ball with a hole (bore) in the center. The ball is positioned within a valve body and can be rotated by a handle or actuator to control the flow.

When the ball valve is open, the bore aligns with the pipe, allowing the fluid or gas to pass through unobstructed. Conversely, when the valve is closed, the ball is rotated 90 degrees, blocking the flow, and sealing off the pipe. This on/off functionality makes ball valves ideal for applications where quick and precise control of the flow is required.

Ball valves offer several advantages. They provide a tight seal when closed, minimizing leakage. They are highly durable, resistant to wear, and suitable for various media, including corrosive substances. The full-bore design of some ball valves allows for unrestricted flow, reducing pressure drop across the valve. Additionally, ball valves are relatively easy to operate and require low maintenance.

Ball valves come in different designs, such as floating ball, trunnion-mounted ball, or V-port ball valves, each with specific applications and features. They are commonly used in industries such as oil and gas, petrochemicals, water and wastewater treatment, pharmaceuticals, and HVAC (heating, ventilation, and air conditioning) systems.

Q41F Ball Valve – Hand Operated
Technical Information
Type Test Pressure Shell Test Pressure Seal Test PressureWorking TemperatureApplication
Q41F-16Q
Q41F-16C
232 psi 550 psi418 psi392 max.Steam, Water, Petroleum, etc.
Q41F-25Q
Q41F-25
367 psi1,378 psi1,029 psi
Q41F-40 580 psi3,480 psi2,552 psi
Col1Col2
Row1Row2