Structural features:

① The fluid resistance is small. When fully opened, the cross sections of the ball channel, valve body channel, and connecting pipeline are equal and connected in a straight line. The medium flowing through the ball valve is equivalent to flowing through a straight pipe. Among all types of valves, the ball valve has the lowest fluid resistance.
② Quick opening and closing, simply rotate the sphere 90 ° for convenient and quick opening and closing.
③ The structure is relatively simple, with a small volume and light weight, especially its height is much smaller than that of gate valves and globe valves.
④ The secret hexagram has excellent and reliable performance, zero leakage, and long service life.
⑤ The two-stage and three-stage structures can adapt to various pipeline systems and working conditions with different requirements. The three-stage ball valve allows the main valve body to be separated from the two side valve bodies, enabling online quick replacement and maintenance.
⑥ Pneumatic and electric devices can be configured according to user needs to meet the requirements of remote control and program control.
⑦ Replacing the lining material of the parts can be applied to various media.
　
Execution standards:

① Design and Manufacturing: Q/ZXD02-1999 GB/T12237-89 API 608 API 6D JIS Standard.
② Flange size:
PN=1.0MPa according to JB/T82.1-94 (original standard JB82-59) "Convex Welding Steel Pipe Flanges".
PN=1.6MPa according to GB9113.3-88 "Convex Integral Steel Pipe Flanges".
PN=2.5MPa according to GB9113.4-88 "Convex Integral Steel Pipe Flanges".
③ The structural length shall be in accordance with GB12221-89 "Structural Length of Flanged Metal Valves".
④ Inspection and testing shall be conducted in accordance with GB/T13927-92 "General Valve Pressure Test".
　
Driving mode:

Manual, worm gear worm, pneumatic, electric

Technical parameters:

Flange connected plastic lined ball valve (two-stage, three-stage):