Pneumatic Ball Valve And Pneumatic Butterfly Valve: Two Major Valves For Fluid Control

In complex industrial fluid control systems, Lined Ball Valve and pneumatic butterfly valves are two key components, each with its unique advantages in cutting off, distributing, and regulating the flow direction of the medium. Although both are pneumatically driven, they have their own advantages in structure, function, and application scenarios.

Pneumatic ball valve: a model of precise cutoff and efficient regulation
As the name suggests, the core of the pneumatic ball valve is a sphere, which is opened and closed by rotating 90 degrees around the valve stem axis. This design not only gives the pneumatic ball valve excellent cutoff ability, but also enables it to have a good flow regulation function. In the chemical, petroleum, natural gas and other industries, pneumatic ball valves are widely used in occasions where it is necessary to quickly cut off the medium, accurately distribute the flow or change the flow direction.

Features Highlights:

Blockage and automatic pressure release: When the valve is closed, the valve seats on both the upstream and downstream sides fit tightly, effectively blocking the liquid. At the same time, when the pressure in the side cavity increases abnormally, the middle cavity medium can be discharged through the automatic pressure release structure to ensure the safe operation of the valve.

Reliable valve stem seal: adopts the bottom inverted seal design, the sealing force increases with the increase of medium pressure, effectively preventing medium leakage.

Fire prevention and anti-static: Fire prevention structure and anti-static device can be configured according to needs to ensure safe operation under special working conditions.

Convenient operation: quick opening and closing, only need to rotate 90 degrees to complete full opening or full closing, and support remote control, greatly improving work efficiency.

Wide applicability: from high vacuum to high pressure, from small diameter to several meters large diameter, pneumatic ball valve can do it, and its power source is gas, which is highly safe, and gas emissions do not pollute the environment when leaking.

Pneumatic butterfly valve: light and efficient, ideal choice for large-diameter pipelines
Compared with pneumatic ball valves, pneumatic butterfly valves are based on disc-type opening and closing parts, and control the opening and closing and adjustment of fluid channels by reciprocating rotation of about 90 degrees. In low-pressure large-diameter pipeline systems, pneumatic butterfly valves are favored for their simple structure, light weight and flexible operation.

Unique advantages:

Low fluid resistance: The resistance coefficient of the pneumatic butterfly valve is close to that of the same length of pipe section, which has little effect on fluid flow and significant energy saving effect.

Easy maintenance: The sealing ring is usually designed to be removable and replaceable, which reduces the difficulty and cost of maintenance.

Good sealing performance: Although the adjustment performance is slightly inferior to the stop valve, high-quality materials such as plastics are widely used on the sealing surface to ensure a good sealing effect.

Large diameter advantage: Compared with manual and turbine rotary ball valves, pneumatic butterfly valves are more widely used in large-diameter pipelines, with a diameter of up to DN1200 or more, meeting the needs of large industrial facilities.

Application scenarios and selection strategies
In actual applications, the selection of pneumatic ball valves and pneumatic butterfly valves should be based on specific working conditions and needs. For occasions where precise cutoff, flow distribution or change of flow direction is required, especially in high-pressure, high-temperature or corrosive media environments, pneumatic ball valves are a more suitable choice. In low-pressure large-diameter pipeline systems, pneumatic butterfly valves show their unique advantages in scenarios that pursue convenient operation, simple maintenance and high cost-effectiveness.

As two star products in the field of fluid control, pneumatic ball valves and pneumatic butterfly valves play an indispensable role in industrial production with their unique performance characteristics and application advantages. Correct selection and reasonable use of these two valves will effectively improve the efficiency and safety of fluid control systems.