Pneumatic ball valves, as key components in industrial automation control, are widely used in water treatment, chemical, food, pharmaceutical, and other fields. However, many engineers tend to overlook key factors during the selection process, leading to reduced system efficiency or even operational failures. This article will address the three most common mistakes in pneumatic ball valve selection and provide practical advice to help you make an accurate choice.

Mistake 1: Ignoring Media Characteristics

Many people focus solely on caliber and pressure when selecting a pneumatic ball valve, overlooking the media's corrosiveness, viscosity, or particulate content.

Consequences of this error: Mismatched valve body materials can lead to corrosion, blockage, or seal failure.

Solution: Determine the media type before selecting a valve and select the appropriate valve body material (such as stainless steel, PVC, or PTFE seals).

Covna recommends: For corrosive media, prioritize 316 stainless steel ball valves with corrosion-resistant seals.

Mistake 2: Ignoring Actuator Parameters

The actuator for a pneumatic ball valve needs to be matched to the operating pressure, frequency of operation, and control method.

Consequences of Errors: Insufficient or excessive actuator thrust, resulting in sluggish operation or damage.
Solution: Select an appropriate double-acting or single-acting pneumatic actuator based on the system air pressure and valve torque requirements.

Covna Recommendation: Use the Covna Torque Calculator to quickly match actuator models to avoid overload or underactuation.

Mistake 3: Ignoring Control Methods and Signal Feedback

In automation systems, the need for solenoid valve control, position feedback, limit switches, etc. is a key consideration when selecting an actuator.

Consequences of Errors: The system cannot achieve remote control or status monitoring, impacting overall operational efficiency.
Solution: Clarify control requirements and select pneumatic ball valves with solenoid valves, feedback sensors, or intelligent positioners.

Covna Recommendation: For PLC control systems, pneumatic ball valves with feedback sensors and NAMUR interfaces are recommended for precise feedback.

Covna Pneumatic Ball Valve Solutions

Covna offers a variety of pneumatic ball valves, supporting customized materials, interfaces, and control accessories to meet diverse operating requirements. Whether it's high-corrosion, high-frequency operation, or intelligent control systems, we can provide you with professional selection support.

View Covna's pneumatic ball valve products: https://www.china-covna.com/covna_product_menu/pneumatic_valve/

Still struggling to select a pneumatic ball valve? Submit your application requirements and we'll customize a solution for you within 24 hours!