Johnson Controls MP843D001F Valve Actuator

The Johnson Controls MP843D001F is a robust pneumatic valve actuator designed for precise proportional control in commercial HVACR systems. Built with a 50 square inch effective diaphragm area, this unit provides the necessary force to modulate valves under high pressure drops. It features a 4 to 8 PSI spring range and a 3/4 inch stroke, ensuring reliable performance in spring return stem up configurations. The housing is engineered for durability in mechanical rooms, utilizing a 1/4 inch OD barbed fitting for secure air line connections. With a 25 PSI maximum control pressure, this actuator is compatible with standard pneumatic controllers and Johnson Controls VG7000 series valves. It includes a comprehensive mounting kit for streamlined field installation. For contractors maintaining legacy pneumatic infrastructure, the MP843D001F pneumatic actuator offers a drop-in solution that restores optimal flow regulation and system efficiency without requiring extensive control upgrades.

Key Benefits

• High Thrust Output: The 50 sq. in. diaphragm delivers consistent force for positive valve positioning.
• Precision Modulation: The 4-8 PSI spring shift ensures accurate response to pneumatic control signals.
• Field Versatility: Included mounting hardware allows for efficient integration with existing globe valve bodies.
• Fail-Safe Operation: Mechanical spring return ensures the valve returns to the stem-up position during a loss of pilot air.

Common Questions

What is the maximum pressure rating for this actuator?
The unit is rated for a maximum control air pressure of 25 PSI to prevent diaphragm damage.

Is the mounting kit included with the MP843D001F?
Yes, this model comes equipped with the necessary mounting assembly for standard JCI valve interfaces.

Can this actuator handle high-temperature steam applications?
It is designed for use on valves regulating water and steam, provided the ambient temperature at the actuator does not exceed 150°F.

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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.