Johnson Controls MP843E001 Valve Actuator

The Johnson Controls MP843E001 is a high-performance pneumatic valve actuator designed for reliable positioning of globe valves in commercial HVACR systems. Engineered for hot water, chilled water, and steam applications, this 50 square inch actuator features a 9-13 PSI spring range and a precise 3/4" stroke to ensure accurate flow modulation. The rugged, die-formed carbon steel housing and EPDM synthetic rubber diaphragm provide a constant effective area throughout the stroke, resisting environmental degradation and mechanical wear. This model is configured for spring return stem up (normally open) action across a 0-25 PSI control range. With a standard 1/4" OD barbed fitting for rapid air connection, the MP843E001 actuator is a preferred choice for contractors seeking a direct-acting pneumatic control solution that integrates seamlessly with Johnson Controls VG7000 and VG2000 series valves without an immediate need for an external mounting kit.

• Universal HVACR Compatibility: Specifically designed to handle medium-to-large-scale chilled water and steam control applications.
• Corrosion-Resistant Construction: Features a coated steel housing and chrome-silicon steel spring for maximum longevity in demanding mechanical rooms.
• Precise Control Logic: The 50 square inch diaphragm delivers higher torque and positioning power compared to smaller size 150 units.
• Visible Stem Positioning: Includes an integrated position indicator for immediate visual verification of valve status during maintenance.
• Field Efficiency: Utilizes a 1/4" barbed air connection to simplify installation for technicians using standard polytubing.

What valves are compatible with the MP843E001?
This actuator is optimized for Johnson Controls globe valves, specifically the VG7000 and VG2000 series. Always check your stem diameter and yoke requirements before field installation.

Can the action be reversed in the field?
Yes, the MP8000 series design allows for field-reversible action, enabling technicians to switch between spring-return-up and spring-return-down configurations if application requirements change.

Does this unit include a positioner?
The MP843E001 is a standard pneumatic actuator. For applications requiring high-precision sequencing or additional positioning power, a V-9502 or EPP-1000 positioner can be added separately.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.