With the technological progress of ball valves, there will be wider applications in the foreseeable short time, especially on oil and gas pipelines, cracking units for oil refining, and in the nuclear industry. In addition, ball valves will become one of the dominant valve types in other industries in large and medium diameter, low and medium pressure areas.
The many unique features of ball valves determine the relatively wide range of occasions for the use of ball valves, usually, in the two-position adjustment, strict sealing performance, mud, wear, indentation channel, rapid opening and closing action (1/4 turn opening and closing), high-pressure shut-off (large differential pressure), low noise, cavitation and cavitation phenomenon, a small amount of leakage to the atmosphere, small operating torque, low fluid resistance piping system, the recommended use of ball valves.
Ball valves are also suitable for light structure, low-pressure cut-off (small differential pressure), and corrosive media piping systems. In the low-temperature (deep cooling) devices and piping systems can also be selected ball valves. In the metallurgical industry, the oxygen pipeline system, the need to use the ball valve after strict degreasing treatment. In the oil pipeline and gas pipeline in the mainline to be buried in the ground, you need to use the full diameter welded ball valve. In the requirement of regulating performance, need to use a special structure with a V-shaped opening of the ball valve. In petroleum, petrochemical, chemical, electric power, and urban construction, a working temperature above 200 degrees in the pipeline system can be selected metal to metal sealed ball valve.
ㆍNeed to clean the pipeline and need to be buried in the underground oil, and natural gas transmission mainline, choose the full passage through, the all-welded structure of the ball valve.
ㆍBuried in the ground, choose the full passage through the welding connection or flange connection of the ball valve; branch pipe, choose flange connection, welding connection, full passage through, or reduction of the ball valve.
ㆍFinished oil transmission pipeline and storage equipment, choose flange connection of the ball valve.
ㆍCity gas and natural gas pipeline, the choice of flange connection, and internal thread connection of the floating ball valve.
ㆍIn the oxygen pipeline system of the metallurgical system, it is appropriate to use the fixed ball valve with strict degreasing treatment and flange connection.
ㆍLow-temperature media piping systems and devices, it is appropriate to use the low-temperature ball valve with the valve cover.
ㆍThe piping system of the catalytic cracking unit of the oil refinery can be used to lift the lever ball valve.
ㆍChemical system of acid and alkali and other corrosive media devices and piping systems, it is appropriate to use austenitic stainless steel, PTFE for the seat seal of the full stainless steel ball valve.
ㆍMetallurgical systems, electric power systems, petrochemical devices, urban heating systems, high-temperature media piping systems or devices, and metal-to-metal sealed ball valves can be used.
ㆍWhen flow adjustment is required, the worm gear drive, pneumatic or electric with a V-shaped opening adjustment ball valve can be used.
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