Johnson Controls MP865C001G Valve Actuator

The Johnson Controls MP865C001G is a heavy-duty pneumatic valve actuator designed for precise flow control in demanding HVACR applications. Specifically engineered for larger valves requiring significant force, this 100 square inch actuator features a 3-7 PSI spring range and a generous 1-1/8 inch stroke. The unit is configured for spring return stem up operation, ensuring a fail-safe position during control air loss. Built with a rugged die-cast aluminum housing, it handles a 25 PSI maximum control pressure via a standard 1/4 inch OD barbed fitting. This model is frequently used for modulating steam or water flow in commercial air handling units where reliable proportional control is non-negotiable. The included mounting kit simplifies field installation, allowing for direct integration with compatible Johnson Controls valve bodies. For technicians managing high-capacity terminal units, the MP865C001G provides the stability and stroke length required for linear valve positioning and efficient thermal regulation.

Technical Key Benefits

• High-Torque Performance: The massive 100 sq. in. effective diaphragm area provides the necessary force to actuate large or high-pressure valves.
• Field Reliability: Rugged construction and a simple pneumatic piston design minimize mechanical failure points in high-cycle environments.
• Fail-Safe Logic: The spring return stem up configuration ensures the system reverts to a known safe state during power or air failures.
• Standardized Integration: Features a universal 1/4 inch barbed fitting for seamless connection to existing pneumatic control systems.

Common Questions

What is the effective area of the MP865C001G diaphragm?
This actuator features a 100 square inch diaphragm, providing high force output for larger valve bodies compared to the smaller MP800 series.

Can this actuator be used for 2-way or 3-way valves?
Yes, the MP865C001G is compatible with various Johnson Controls valve bodies, provided the 1-1/8 inch stroke and stem-up fail-safe requirements align with the application.

What is the maximum operating pressure for this pneumatic actuator?
The unit is rated for a maximum control signal pressure of 25 PSI, though it typically operates within the 3-7 PSI proportional spring range.

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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.