Floating ball valve
The sphere of the ball valve is floating, under the action of medium pressure, the sphere can produce a certain displacement and press on the seal surface at the exit end, ensuring that the outlet seal. The structure of the floating ball valve is simple and sealed well, but the load of the ball under the working medium is passed to the outlet seal ring, so it is necessary to consider whether the sealing ring material can withstand the working load of the sphere medium, and the sphere may be offset when it is affected by higher pressure. This structure is commonly used for medium and low pressure ball valves.
Trunnion Ball Valve
The sphere of the ball valve is fixed and does not move after pressure. Fixed ball valves are equipped with floating seat, subject to media pressure and the seat is generated to move, so that the seal ring is pressed on the sphere to ensure the seal. Bearings are usually installed on the upper and lower shafts with spheres. Small torque for operation leads to its suitability for high pressure and large size valves.
Elastic Ball Valve
The sphere of the ball valve is elastic. The sphere and seat seal ring are made of metal material. This valve is suitable for high-temperature and high-pressure media. An elastic sphere is an elastic slot at the lower end of the wall inside the sphere, which obtains elasticity. When closing the channel, use the wedge head of the stem to make the sphere rise and hold to tighten to seal. Release the wedge head before turning the sphere, and the sphere reverts to its original shape, allowing for a small gap between the sphere and the seat, reducing friction and operating torque of the sealing surface.
V Type Ball Valve
The V-shaped regulating ball valve has a shear effect on the seat because the core has a V-shaped structure. Therefore, it is suitable for paper, chemical, metallurgy and other industrial enterprises containing fiber or tiny solid particles in the suspension fluid medium of the relevant process parameters control. V-ball valve belongs to the fixed ball valve and has a single seat. Its adjustment performance is the best ball valve. Plus, its flow characteristics are equal percentage, adjustable ratio of up to 100:1.
Three-way Ball Valve
The tee ball valves are T-type and L-type. The T-type can connect three orthogonal pipes to each other and cut off the third channel, which acts as a diversion and convection.
The L-type can only connect two orthogonal pipes to each other, and cannot maintain the interconnection of the third pipe at the same time, only for distribution.