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Floating ball valve specification

Author: Site Editor     Publish Time: 2018-11-12      Origin: Site

The floating ball valve has a motion of 90° of rotation, the body of the plug is a sphere, with a circular through hole or passage through its axis. The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. It only needs to be rotated 90° and the torque can be closed tightly. Ball valve is most suitable for switching and shut-off industrial valves.

Here are the content list:

  1. Floating ball valve working principle

  2. The main structural features of the floating ball valve

  3. Ball valve working principle


A. Floating ball valve working principle

The water level of the water tower or the pool is automatically controlled by the crank arm and the floating ball. The maintenance is simple, flexible and durable, the liquid level control is high, the water level is not disturbed by the water pressure, and the opening and closing is tight and watertight.

main feature


It is an unsupported shaft of the sphere. The sphere is held in a "floating" state by the two valve seats. It is mainly used to cut, distribute and change the direction of medium flow on the pipeline. The main features of the floating ball valve are the seat seal design, the reliable inverted valve seal, the fireproof electrostatic function, the automatic pressure relief and the locking device.

Floating ball valve is suitable for: chemical, petroleum, natural gas, metallurgy, and other industries and hydrogen-containing medium, impurities and corrosion of natural gas long-distance pipeline.

B. The main structural features of the floating ball valve

1. The valve has an indication of opening and closing position;

2. Locking device;

3. Stem anti-fly structure;

4. Anti-static device;

5. Fireproof structure;

6. Unique seat sealing structure;

7. The middle flange (the valve body and the left body connection) has no external leakage structure.

Floating ball valves are divided into: ordinary carbon steel series (WCB & A105); stainless steel series (304, 316); low temperature steel series (LCB, LCC); anti-sulfur series, etc. according to different application requirements.

Floating ball valves are suitable for general industrial use.


C. Ball valve working principle

The float always floats on the water, and as the water rises, the float also rises. As the drift rises, the connecting rod also rises. The connecting rod is connected to the valve at the other end. When it rises to a certain position, the connecting rod supports the rubber piston pad to close the water source. When the water level drops, the float also drops, and the connecting rod drives the piston pad to open.

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