Pneumatic Actuated Ball Valve

Pneumatic ball valves are also called pneumatic quick shut-off ball valves, because the execution speed of the pneumatic actuator is relatively fast, and the fastest switching speed is 0.05 seconds/time. Pneumatic ball valves can realize local control and remote centralized control by configuring accessories, such as solenoid valves, air source treatment triples, limit switches, positioners, control boxes, etc. The operator can control the switch of the valve in the control room, and does not need to go to the scene or bring manual control at high altitudes and dangerous places, which greatly saves human resources, time and safety.

 

 

Pneumatic ball valves, also referred to as pneumatic quick shut-off ball valves, exhibit rapid execution due to the pneumatic actuator's high-speed capabilities, with the fastest switching speed recorded at 0.05 seconds per operation. These valves facilitate local control as well as remote centralized control through the strategic integration of accessories such as solenoid valves, air source treatment triples, limit switches, positioners, and control boxes. This comprehensive configuration empowers operators to effortlessly manage valve switching from a control room, eliminating the need for on-site or manual control in hazardous and elevated locations. This not only significantly conserves human resources and time but also enhances overall safety.

 

The pneumatic ball valve's operational principle revolves around the rotation of the spool to achieve unobstructed or blocked flow. Its compact size belies its high switching efficiency, making it adaptable for both small and large diameters. The valve's simple yet robust structure ensures dependable sealing and ease of maintenance. Furthermore, the continuous closed state of the sealing and spherical surfaces safeguards against medium erosion, rendering it a durable choice across diverse industries.

 

Categorized alongside plug valves, pneumatic ball valves share the characteristic of employing a spherical closing element. This spherical component pivots around the valve body's centerline, effectively controlling the valve's opening and closing actions. Primarily employed within pipelines, pneumatic ball valves serve pivotal roles in regulating flow speed, distribution, and alteration of medium direction.

 

 

1. The fluid resistance is small, and its resistance coefficient is equal to that of the pipe section of the same length.

2. Simple structure, small size and light weight.

3. Tight and reliable, the sealing surface material of the ball valve is widely used in plastics, with good sealing performance, and has been widely used in vacuum systems.

4. Easy to operate, fast opening and closing, only need to rotate 90° from fully open to fully closed, which is convenient for long-distance control.

5. Easy maintenance, the structure of the pneumatic ball valve is simple, the sealing ring is generally movable, and it is more convenient to disassemble and replace.

6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface.

7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure.

8. Because the power source of the pneumatic ball valve is gas, the pressure is generally 0.2-0.8MPa, which is relatively safe. If the pneumatic ball valve leaks, compared with hydraulic and electric, the gas can be discharged directly, which has no pollution to the environment and has higher safety.

9. Compared with manual and turbine rotary ball valves, pneumatic ball valves can be configured with larger diameters (manual and turbine rotary ball valves are generally below DN300 caliber, and pneumatic ball valves can reach DN1200 caliber.)

Pneumatic ball valves have been widely used in petroleum, chemical industry, power generation, papermaking, atomic energy, aviation, rocket and other departments, as well as in people's daily life.

 

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