MP958A1009 | Honeywell 2–5 PSI Direct-Acting Spring Return Pneumatic Valve Actuator

Description 

The Honeywell MP958A1009 is a low-force, direct-acting valve actuator designed for precision control in pneumatic systems. Operating with a 2–5 PSI spring range, it offers reliable spring return functionality for safe and consistent damper positioning.

Technical Specifications 

Information About MP958A1009

The MP958A1009 is part of Honeywell’s pneumatic actuator series, specifically engineered for valve and damper control in HVAC applications. It features a compact body measuring 2-1/4 inches in diameter and 3-3/16 inches in height, allowing installation in space-restricted areas. With a direct-acting mechanism, it responds proportionally to increasing air pressure, and its 2–5 PSI spring range ensures precise modulation in low-pressure control loops. The actuator includes a spring return fail-safe mode for automatic repositioning in the event of air supply loss, and it connects via a barbed fitting for 1/4-inch O.D. plastic tubing to simplify pneumatic integration. Designed for durability, it supports up to 30 PSI maximum safe operating pressure without compromising performance.

Key Features:

• Low-force pneumatic control: Specifically engineered for applications where minimal actuator force is required, ensuring smooth operation in sensitive valve or damper mechanisms without overloading the system.

• Direct-acting operation: Responds proportionally to increases in control air pressure, moving the actuator stem in a consistent and predictable manner to deliver precise valve positioning.

• 2–5 PSI calibrated spring range: Provides accurate modulation in low-pressure pneumatic systems, allowing fine adjustments for optimal air balancing and HVAC performance.

• Spring return fail-safe mode: Uses a built-in spring mechanism to automatically return the actuator to a predetermined safe position when the air supply is lost, protecting the system during power or control failures.

• Compact form factor for tight spaces: With a diameter of just 2-1/4 inches and height of 3-3/16 inches, it can be installed in confined mechanical spaces without the need for extensive mounting modifications.

• High-pressure durability: Built to safely withstand up to 30 PSI without damage, offering a substantial safety margin for demanding pneumatic environments.

The MP958A1009 delivers the reliability and precision required for accurate pneumatic valve and damper control in HVAC systems.