The main features of the Pneumatic three-piece ball valves are its compact structure, easy operation and maintenance, suitable for general working media such as water, solvent, acid and natural gas, and also suitable for medium with harsh working conditions such as oxygen, methane and ethylene.
The ball valve body may be integral or combined.
Pneumatic three-piece ball valves have been widely used in petroleum, chemical, power generation, paper, atomic, aerospace, rocket and other departments, as well as people's daily lives.
1. The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length.
2. The structure is simple, small in size and light in weight.
3. Compact and reliable, it has also been widely used in vacuum systems.
4. The operation is convenient, the opening and closing is rapid, and the rotation is 90° from full opening to full closing, which is convenient for long-distance control.
5. The maintenance is convenient, the pneumatic ball valve has a simple structure, and the sealing ring is generally active, and the disassembly and replacement are relatively convenient.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium does not cause erosion of the sealing surface of the valve.
7. Wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.
Nominal Diameter(mm) |
10-80mm |
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Nominal Pressure(Mpa) |
1.6 |
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Model |
Q611F, Q661F, Q681F, Q621F |
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Main Part |
Valve Body |
CF8 304 |
CF8M 316 |
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Ball |
CF8 304 |
CF8M 316 |
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Valve Stem |
CF8 304 |
CF8M 316 |
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Seal Ring |
Enhanced PTFE, Para-polyphenylene |
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Filler |
PTFE , Flexible Graphite |
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Applicable Conditions |
Applicable Medium |
Water, Steam, Oil, Gas, etc. |
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Applicable Temperature |
-28°C - 300°C |
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Actuator |
Model |
AT series or GT series |
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Air pressure |
0.4-0.7Mpa |
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Executive Standard |
Design and Manufacture |
Structure Length |
Flange Size |
Pressure Temperature |
Test Inspection |
|
GB/T12238 |
GB/T12221 |
/ |
GB/T13927 |
GB/T13927 |