Pneumatic Control Ball Valve
Summary
The pneumatic control ball valve is compact in structure, reliable in sealing, simple in structure, convenient in maintenance, sealing surface and sphere are often in the closed state, not easy to be eroded by medium, easy to operate and maintain. The pneumatic control ball valve is mainly used in the chemical industry, petrochemicals, petroleum, paper making, mining, electric power, liquefied natural gas, food, pharmaceutical, water supply and drainage, municipal administration, mechanical equipment supporting, electronic industry, urban construction, and other fields.
Advantages:
The pneumatic adjustment ball valve is mainly used to cut or connect the medium in the pipeline, can be used for the regulation and control of fluid, it compared with other valves, has the following advantages:
(1) The fluid resistance is small, the ball valve is the least fluid resistance in all valve classes, even the ball valve with reduced diameter, its fluid resistance is quite small.
(2) Thrust bearing reduces the stem friction torque, can make the stem long-term operation balance flexible.
(3) The valve seat sealing performance is good, the sealing ring made of PTFE and other materials, the structure is easy to seal, and the valve sealing ability of the ball valve increases with the addition of medium pressure.
(4) The valve stem seal is reliable because the valve stem only does the rotation movement but does not do the lifting movement, the valve stem packing seal is not easy to destroy, and the sealing ability increases with the medium pressure.
(5) Due to the good self-lubricity of PTFE and other materials, the friction loss with the ball is small and the service life of the ball valve is long.
(6) Lower valve stem and stem head convex step to prevent the valve stem gushing, such as a fire caused by the stem seal damage, convex step and the body can also form metal contact, to ensure the valve stem seal.
| Technical Data |
| Nominal pressure |
1.6, 4.0, 6.4MPa, ANSI150, 300(Lb), JIS10, 20K |
| Medium |
Water, petroleum, nitric acid, acetic acid, viscous fluid, slurry, strong oxidizing medium, etc. |
| Medium temperature |
-40 ~ +180ºC -40 ~ +350ºC |
| The leakage amount |
0 conforms to ansible 16.104 class 5 standard |
| The rotation angle of the sphere |
90° |
| Body |
A105, F304, F316, WCB, FZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8, CF8M,CF3M |
| Seat |
PTFE (normal temperature), special PPL(high temperature) |
| Explosion-proof grade group |
d BT4 (d2c4) (available for ordinary type, explosion-proof type two kinds of specifications) |
| Solenoid valve power supply |
220VAC, 24VDC |
| Air source pressure |
MPa 0.4 ~ 0.7mpa |
| Inherently adjustable ratio R |
100:1 |
| Main Outline and Connecting Flange Size |
Machining Process
Company Introduction
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
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