Q347F flange forged steel ball valve

The flange forged steel ball valve has the action of rotating 90 degrees. The cock body is a sphere with a circular through hole or channel passing through its axis. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a small torque can be closed tightly. Ball valves are most suitable for switching and shut-off valves, but recent developments have designed ball valves to throttle and control flow, such as V-shaped ball valves.

Advantages of Q347F flange forged steel ball valve:

1. The fluid resistance is small, and the full-bore ball valve basically has no flow resistance.

2. Simple structure, small size and light weight.

3. Close and reliable. It has two sealing surfaces, and the current sealing surface materials of ball valves are widely used in various plastics, which have good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.

4. It is easy to operate and open and close quickly. It only needs to rotate 90° from fully open to fully closed, which is convenient for remote control.

5. The maintenance is convenient, the structure of the ball valve is simple, the sealing ring is generally movable, and it is convenient to disassemble and replace.

6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.

7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure.

8. Since the ball valve has wiping properties during opening and closing, it can be used in media with suspended solid particles.

Features of Q347F flange forged steel ball valve:

The maximum nominal diameter of floating ball valves is DN1200, and the maximum nominal diameter of fixed ball valves is DN2000. According to the specifications of the valves produced by the factory and the data available, the smallest nominal diameter of floating ball valves is DN6, and the smallest nominal diameter of fixed ball valves is DN50.

After research, the connection dimensions of various manufacturers are not uniform. In order to have a unified standard, users can exchange the same specifications when selecting and installing. It is recommended that the National General Machinery Research Institute revise JB/T2203-1999 "Ball Valve Structure Length" . It is recommended that the design institute and users choose according to the standard, and the ball valve manufacturer designs and manufactures according to the standard. Ball valve operation and use: 1. Make sure that the pipeline and valve have been flushed before operation. 2. The operation of the valve drives the valve stem to complete rotation according to the size of the input signal of the actuator: when it rotates 1/4 turn (90°) in the forward direction, the valve is closed. When reverse rotation 1/4 turn (90°), the valve opens. 3. When the direction indicating arrow of the actuator is parallel to the pipeline, the valve is in the open state; when the indicating arrow is perpendicular to the pipeline, the valve is in the closed state. Maintenance has a long service life and maintenance-free period, which will depend on the following factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable

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