Imported pneumatic ball valve
Overview of imported pneumatic ball valves
The imported pneumatic ball valve (floating ball pneumatic ball valve, stainless steel pneumatic ball valve, three-way pneumatic ball valve, high temperature and high pressure pneumatic ball valve, pneumatic single-acting ball valve) provided by YLOK Valve is a ball valve equipped with a pneumatic actuator. The execution speed of the pneumatic actuator is relatively fast, the fastest switching speed is 0.05 seconds/time, so it is usually called the pneumatic quick-cut ball valve. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, air source treatment triples, limit switches, positioners, control boxes, etc., to achieve local control and remote centralized control. The valve can be controlled in the control room. , There is no need to go to the scene or high altitude and dangerously bring manual control, which greatly saves human resources, time and safety.
The specific classification of pneumatic ball valves are: floating ball pneumatic ball valves, fixed ball pneumatic ball valves, elastic ball pneumatic ball valves. Stainless steel pneumatic ball valve, plastic pneumatic ball valve, sanitary pneumatic ball valve, carbon steel pneumatic ball valve, two-way pneumatic ball valve, three-way pneumatic ball valve, four-way pneumatic ball valve.
Working principle of imported pneumatic ball valve
It only needs to use a pneumatic actuator to drive the valve body to rotate 90 degrees to achieve the function of intercepting and opening the flow of the medium. And only a small rotating torque can be closed tightly. The completely equal internal cavity of the valve provides a straight flow path for the medium with little resistance. It is generally believed that the ball valve is most suitable for direct opening and closing. Now the ball valve has been designed to throttle and control the flow. The main feature of the ball valve is its compact structure, easy operation and maintenance, suitable for general working media such as water, solvent, acid and natural gas, and also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The valve body of the ball valve can be integral or combined.
Main advantages of imported pneumatic ball valve:
A. Anti-static function: A spring is set between the ball, valve stem, and valve body, which can lead out the static electricity generated during the switching process.
B. The valve stem is reliable in sealing. Since the valve stem is only used for imitating rotation and not lifting movement, the packing seal of the valve stem is not easy to be damaged, and the sealing ability increases as the pressure of the medium increases;
C. The valve seat has good sealing performance. The sealing ring made of PTFE and other elastic materials is easy to seal, and the valve sealing capacity of the ball valve increases with the increase of the medium pressure;
D. The thrust bearing reduces the friction moment of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time;
E. Since materials such as polytetrafluoroethylene have good self-lubrication and small friction loss with the ball, the service life of the ball valve is long;
F. The bottom-mounted valve stem and the convex step of the valve stem head prevent the valve stem from spraying out. If the valve stem seal is damaged due to fire, the convex step and the valve body can also form metal contact to ensure the valve stem seal;
G. The fluid resistance is small. The ball valve is the smallest fluid resistance of all valves. Even the reduced diameter ball valve has a relatively small fluid resistance. The pneumatic ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid adjustment and control. Compared with similar valves in the above aspects, it has outstanding advantages
Performance parameters of imported pneumatic ball valve:
a. Working pressure: 1.0Mpa-42.0Mpa.
b. Working temperature: -40+550℃.
c. Drive mode: manual, worm gear, pneumatic, electric, etc.
d. Connection method: flange, welding, butt welding, socket welding, etc.
e. Manufacturing standards: national standard GB, JB, HG, American standard API, ANSI, British standard BS, Japanese JIS, JPI, etc.
f. Valve body material: cast steel, carbon steel, WCB, WC6, WC9, 20#, 25#, forged steel, A105, F11, F22, stainless steel, 304, 304L, 316, 316L, chromium molybdenum steel, low temperature steel, Titanium alloy steel, etc.
Selection of imported pneumatic ball valve.
1. Valve type/product name, model specification:
2. Nominal diameter of pneumatic ball valve:
3. Maximum operating pressure of pneumatic ball valve:
4. The maximum service temperature of the valve (minimum):
5. Product application conditions, medium composition:
6. End connection form and flange standard:
7. Valve drive mode:
8. Part material or other requirements
Contact: peng gong
Phone: 18918462396
Tel: 021-59718851
Email: kunage@126.com
Add: Lane 819, Qinghewan Road, Qingpu Industrial Park, Qingpu District, Shanghai