Overview of pneumatic high performance ball valve

Pneumatic high-performance ball valve is an automatic control valve with high efficiency and superior performance. It combines the advantages of pneumatic actuators with the structural characteristics of ball valves and is widely used in multiple industrial fields. The following is a detailed introduction to high-performance pneumatic ball valves:

1、 Definition and Characteristics

definition:

Pneumatic high-performance ball valve is a valve that controls the opening and closing of ball valves through pneumatic devices, with high efficiency and superior performance.

characteristic:

Compact structure and small volume: The pneumatic high-performance ball valve has a compact design, small volume, and is easy to install and maintain.

High driving torque: able to adapt to valve control with large diameters, high pressures, and heavy loads, ensuring stable operation of the valve.

Fast response speed: Pneumatic actuators can quickly respond to control signals and achieve rapid opening and closing of valves.

Easy to operate: supports remote and automated control, improves production efficiency and product quality.

Good sealing performance: The sealing surface material of the ball valve widely uses materials with good sealing performance such as plastic to ensure the sealing performance of the valve.

Wide applicability: The diameter can range from a few millimeters to several meters, and can be applied to high vacuum to high pressure.

2、 Working principle

The working principle of high-performance pneumatic ball valves is mainly to use pneumatic force to push the valve core of the ball valve to the open or closed position. When the air source is introduced into the cylinder of the actuator, the air pressure inside the cylinder will cause the piston to move forward or backward, thereby pushing the valve core to rotate and achieve the opening and closing of the ball valve. The rotation angle of the valve core is usually 90 °, achieving a rapid transition from fully open to fully closed.

3、 Application Fields

Pneumatic high-performance ball valves are widely used in the following fields:

Petrochemical industry: used for cutting off and regulating control of equipment such as pipelines, storage tanks, and reactors.

Manufacturing: Used for controlling equipment such as fluid control systems, water supply systems, air conditioning systems, etc.

Environmental governance: used for controlling waste gas and wastewater treatment systems.

Pneumatic high-performance ball valves have also been widely used in other industrial fields such as power generation, papermaking, nuclear energy, aviation, rockets, and other sectors.

4、 Advantages and disadvantages

Advantages:

The fluid resistance is small, and the resistance coefficient is equal to that of a pipe segment of the same length.

Easy to operate, quick opening and closing, convenient for remote control.

Easy to maintain, the pneumatic ball valve has a simple structure, and the sealing ring is generally movable, making disassembly and replacement relatively convenient.

High safety, because the pneumatic ball valve power source uses gas, which is relatively safe.

Shortcoming:

The regulating performance is relatively inferior compared to globe valves.

Sealing materials such as polytetrafluoroethylene have a lower temperature resistance rating and can only be used below 180 ℃. Beyond this temperature, the sealing material will age.

5、 Purchase suggestions

When choosing high-performance pneumatic ball valves, the following factors need to be considered:

Work pressure and temperature: Choose a ball valve with an appropriate range of work pressure and temperature based on the actual working conditions.

Medium characteristics: Consider factors such as corrosiveness and viscosity of the medium, and select suitable sealing materials and valve body materials.

Control mode: Select the appropriate control mode according to the control requirements, such as remote control, automation control, etc.

Brand and manufacturer: Choose well-known brands and reputable manufacturers to ensure product quality and after-sales service.

In summary, pneumatic high-performance ball valves have become an indispensable and important component of industrial automatic control systems due to their superior performance and wide application fields. In the process of selection and use, various factors need to be fully considered to ensure its normal operation and long-term stability.