Festo CMSX CMSH Digital Valve Positioner for Pneumatic Control Valves

The Festo CMSX CMSH Digital Valve Positioner is designed for precise control of pneumatic valves in industrial process automation. It receives a standard control signal and adjusts the valve position accurately according to process requirements. The positioner ensures stable valve operation, fast response, and consistent control performance.

The CMSX and CMSH series support both linear and rotary pneumatic actuators. They are widely used in process industries where reliable valve control and long term operational stability are required.

• Accurate valve positioning The digital control system ensures precise positioning and high repeatability. This improves process stability and reduces control deviation.
• Digital adaptive control The positioner automatically adapts to actuator and valve characteristics, maintaining consistent performance under varying operating conditions.
• Wide actuator compatibility Supports single acting and double acting pneumatic actuators. Suitable for control valves and on off valves in different applications.
• Easy installation and commissioning Standard NAMUR mounting allows quick installation. Simple configuration reduces setup time and maintenance effort.
• Industrial grade reliability Designed for continuous operation in demanding industrial environments with stable long term performance.

• Pneumatic control valves
• Linear and rotary actuators
• Chemical and petrochemical plants
• Oil and gas processing facilities
• Power generation systems
• Water and wastewater treatment
• Food and beverage production

Product type

Digital valve positioner

Control signal

4 to 20 mA

Actuator type

Linear and rotary

Acting mode

Single acting and double acting

Position feedback

Internal digital sensor

Mounting interface

NAMUR standard

Air supply

Clean dry compressed air

Operating conditions

Industrial process environments

Specifications may vary by model and configuration.

• Improves control accuracy and process efficiency
• Reduces air consumption and operating costs
• Enhances valve and actuator service life
• Simplifies installation and maintenance
• Ensures reliable long term valve performance

Festo is a globally trusted automation brand with extensive experience in pneumatic and process automation. The CMSX CMSH digital valve positioner combines advanced digital control with proven mechanical design, making it a dependable solution for modern industrial valve control applications.

The CMSX CMSH positioner integrates easily into existing control systems using standard control signals and mounting interfaces. It can be used for new installations or as a replacement for conventional analog positioners. Technical support and documentation are available to support commissioning and long term operation.

What is the difference between CMSX and CMSH

CMSX is typically used for standard industrial applications, while CMSH is designed for harsher environments with higher durability requirements. The exact differences depend on configuration and operating conditions.

Can the CMSX CMSH positioner be used with both linear and rotary valves

Yes. The positioner supports both linear and rotary pneumatic actuators using standard mounting kits.

Does the positioner support single acting and double acting actuators

Yes. It is compatible with both single acting and double acting pneumatic actuators.

What control signal does the CMSX CMSH use

The positioner operates with a standard 4 to 20 mA control signal commonly used in industrial control systems.

Is the CMSX CMSH suitable for on off valves

Yes. It can be used for modulating control valves as well as on off valve applications.

Is the positioner easy to commission

Yes. The digital control system allows fast setup and automatic adaptation, reducing commissioning time.