The floating ball valve and the fixed ball valve are different from the connection, below we will elaborate:

Float Ball valve:

Floating ball valve ball is floating, in the medium pressure, the sphere can produce a certain displacement and tight pressure on the export end of the seal ring, to ensure that the export end seal, is a unilateral forced seal.

The design of floating ball valve should focus on whether the sealing ring material can withstand the medium action load of the sphere. This floating ball structure is widely used in the medium and low pressure ball valves because the ball is subjected to the load of the working medium and is all passed to the outlet seal ring. In addition, the design should also consider large-caliber ball valve operation requires a larger torque.

Fixed ball valve:

Fixed ball valve ball is fixed, under pressure does not produce movement, therefore, in the design of the two seals should be sufficient preload to ensure seal, is a double-sided forced seal. A thrust or sliding bearing is usually arranged on the upper and lower stem of the ball connected with the sphere.