What working conditions are ball valves suitable for?

The many unique characteristics of ball valves determine that ball valves are used in a relatively wide range of applications. Usually, they are used in two-position adjustment, strict sealing performance, mud, wear, shrinkage channel, rapid opening and closing action (1/4 turn opening and closing), high pressure cut-off ( Ball valves are recommended for pipeline systems with large pressure difference), low noise, cavitation and vaporization phenomena, a small amount of leakage to the atmosphere, small operating torque, and small fluid resistance.

Ball valves are also suitable for pipeline systems with light structure, low pressure cutoff (small pressure difference), and corrosive media. Ball valves can also be used in cryogenic (cryogenic) devices and piping systems.

Applicable principles of ball valves:

2. If it is buried on the ground, choose a ball valve with a full-diameter welded connection or a flange connection; for a branch pipe, choose a ball valve with a flange connection, a welded connection, a full-diameter or a reduced diameter.

3. For product oil transportation pipelines and storage equipment, flange-connected ball valves are used.

4. On city gas and natural gas pipelines, floating ball valves with flange connection and internal thread connection are used.

5. In the oxygen pipeline system in the metallurgical system, fixed ball valves with flange connections should be selected that have undergone strict degreasing treatment.

6. For piping systems and devices with low-temperature media, low-temperature ball valves with valve covers should be used.

7. For the piping system of the catalytic cracking unit of the oil refining unit, a lift-rod ball valve can be used.

8. For devices and piping systems with corrosive media such as acid and alkali in chemical systems, it is appropriate to use all-stainless steel ball valves made of austenitic stainless steel and with polytetrafluoroethylene as the valve seat seal.

9. Metal-to-metal sealing ball valves can be used for pipeline systems or devices with high-temperature media in metallurgical systems, power systems, petrochemical installations, and urban heating systems.

10. When flow adjustment is required, a worm gear-driven, pneumatic or electric regulating ball valve with a V-shaped opening can be used.

Ball valves are widely used, and the variety and quantity are still expanding, and are developing towards high pressure, high temperature, large diameter, high sealing, long life, excellent regulating performance and multi-functionality of one valve. Its reliability and other performance indicators All have reached a high level and can partially replace gate valves, stop valves and regulating valves.

With the technological advancement of ball valves, they will be more widely used in the foreseeable short term, especially on oil and gas pipelines, cracking units in oil refining, and in the nuclear industry. In addition, ball valves will also become one of the leading valve types in large and medium diameter, medium and low pressure fields in other industries.