Where Are the Ball Valves Used?(Part 2)

The many unique characteristics of the ball valve determine the relatively widespread use of the ball valve. Generally, the two-position adjustment, strict sealing performance, mud, wear, shrinkage channel, rapid opening and closing action (1/4 turn opening and closing), high-pressure cutoff ( Large pressure difference), low noise, cavitation and gasification, a small amount of leakage into the atmosphere, small operating torque, low fluid resistance, the use of ball valves is recommended.

The ball valve is also suitable for piping systems with a light structure, low-pressure cut-off (small pressure difference) and corrosive media. Ball valves can also be used in low temperature (cryogenic) devices and piping systems. In the oxygen pipeline system in the metallurgical industry, it is necessary to use a ball valve that has undergone strict degreasing treatment. When the main pipeline in the oil pipeline and gas pipeline needs to be buried underground, a full-diameter welded ball valve should be used. When regulating performance is required, a ball valve with a special structure with a V-shaped opening needs to be selected. In petroleum, petrochemical, chemical, electric power, and urban construction, metal-to-metal sealed ball valves can be used for piping systems with operating temperatures above 200 degrees.

Flange Ball Valve

Ball valve application principles

For pipelines for oil and natural gas, pipelines that need to be cleaned or buried underground, use full welded ball valves.

For those buried in the ground, select a flange ball valve with a full-pass welded connection or flange connection; a branch pipe with a flange connection, a welded connection, a full-pass or reduced-diameter ball valve.

Flanged ball valves are used for the transportation pipeline and storage equipment of refined oil.

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

In the oxygen pipeline system in the metallurgical system, it is advisable to use a fixed ball valve that is strictly degreased and flanged.

For piping systems and devices of low-temperature media, low-temperature ball valves with bonnets should be used.

On the pipeline system of the catalytic cracking device of the oil refining device, a lifting rod type ball valve can be selected.

In the equipment and piping system of the acidic and alkali corrosive media in the chemical system, it is appropriate to select all-stainless steel ball valves made of austenitic stainless steel with PTFE as the seat ring.

Metallurgical systems, electric power systems, petrochemical installations, and high-temperature medium piping systems or devices in urban heating systems can be metal-to-metal sealed ball valves.

When flow adjustment is required, worm gear drive, pneumatic or electric regulating ball valve with V-shaped opening can be selected.

summary:

Industrial ball valves are widely used, and the variety and number of them are still expanding. They are developing towards high pressure, high temperature, largemouth, high sealing, long life, excellent adjustment performance, and multi-function of one valve. Its reliability and other performance The indicators have reached a high level, and have partially replaced gate valves, globe valves, and regulating valves.

The industrial ball valve supplier believes that with the advancement of ball valve technology, in the foreseeable short period of time, especially in oil and gas pipelines, oil refining crackers, and the nuclear industry, there will be more extensive application. In addition, in the large and medium caliber, low and medium pressure fields in other industries, ball valves will also become one of the leading valve types.