Examples Of The Characteristics Of Eccentric Hemispheric Valves And V-type Ball Valves

2 Piece Threaded Ball Valve is a relatively new type of ball valve. It has some advantages unique to its own structure, such as no friction when opening and closing, the seal is not easy to wear, and the opening and closing torque is small. This can reduce the specifications of the actuator. Equipped with a multi-turn electric actuator, it can achieve the adjustment and strict shutoff of the medium. It is widely used in working conditions that require strict shutoff, such as petroleum, chemical industry, and urban water supply and drainage.

① The eccentric semi-ball valve is a top-mounted structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the shutdown of the device and reduce costs.

② The eccentric semi-ball valve is a single valve seat design. The problem of abnormal pressure increase in the valve cavity medium affecting the safety of use is eliminated.

③ Low torque design. The valve stem with a special structural design can be easily opened and closed with a small handle valve.

④ Opening and closing without friction. This function completely solves the problem that the traditional valve affects the sealing due to friction between the sealing surfaces.

⑤ Wedge sealing structure. The valve is sealed by the mechanical force provided by the valve stem, which presses the ball wedge onto the valve seat, so that the sealing performance of the valve is not affected by the change of pipeline pressure difference, and the sealing performance is reliably guaranteed under various working conditions.

⑥ Self-cleaning structure of the sealing surface of the eccentric hemispherical valve. When the ball tilts away from the valve seat, the fluid in the pipeline passes evenly along the sealing surface of the ball at 360°, which not only eliminates the local scouring of the valve seat by the high-speed fluid, but also washes away the accumulation on the sealing surface, achieving the purpose of self-cleaning.

The V-type ball valve belongs to the fixed ball valve and is also a single-seat sealed ball valve. The adjustment performance is the best among ball valves, and the flow characteristics are equal percentages, and the adjustable ratio is 100:1. There is a shearing effect between its V-shaped cut and the metal valve seat, which is particularly suitable for media containing fibers, tiny solid particles, slurry, etc.

The V-type ball valve does not have a flow regulation function and can also be used for fluids containing impurity particles.

1. The fluid resistance is small, and its resistance coefficient is equal to the same length.

2. Simple structure, small size and light weight

3. The ball valve sealing material is tight and reliable, widely used in plastics, with good sealing performance, and widely used in vacuum systems.

4. Simple operation, fast opening and closing, only rotate 90 degrees from full open to full closed, easy to control over long distances.

5. The utility model has the advantages of convenient maintenance, simple ball valve structure, simple movable sealing ring structure, and convenient disassembly and replacement.

6. When fully opened or fully closed, the sealing surface of the ball and the seat are isolated from the medium. When the medium passes through, it will not cause corrosion on the sealing surface of the valve.

7. Wide range of applications, diameters range from small to several millimeters, and sizes can be used from high vacuum to high pressure.

When the ball rotates 90 degrees, the spherical surface should be fully presented at the inlet and outlet, thereby cutting off the flow. The eccentric semi-ball valve is a relatively new type of ball valve, which has its own unique structural advantages, such as frictionless switching, seals that are not easy to wear, and small switching torque. This reduces the specifications of the adapter. The multi-rotation electric actuator can adjust and cut off the medium. It is widely used in petroleum, chemical industry, urban water supply and drainage and other industries.

The above are simple examples of eccentric semi-ball valves and V-type ball valves for reference and comparison. I believe you have more or less known about these two ball valves. Finally, we attach their corresponding models to make it easier for you to remember.