Honeywell 14004138-001 Retrofit Kit

The Honeywell 14004138-001 Positive Positioner Retrofit Kit is the industry-standard solution for field-converting MP953B pneumatic valve actuators to the high-performance MP953F configuration. This technical kit is engineered specifically for reverse acting actuators and is used to replace the legacy Gradutrol relay with a modern positive positioner. By integrating this kit, contractors can upgrade existing 13 inch diaphragm units to the latest pilot-operated standards, improving control stability and stem positioning accuracy on V5011 and V5013 valve assemblies. The 14004138-001 is a direct functional equivalent to the 14004138-001/U, ensuring full compatibility with existing Honeywell pneumatic controls. This retrofit kit conversion includes all necessary mounting hardware—such as the bracket, lever, and plate—along with the essential 14004213-001 feedback spring kit, featuring white (3 psi), bronze (5 psi), and violet (10 psi) springs to match your specific sequencing range requirements. For technicians managing steam and hot water valves, this upgrade minimizes hysteresis and ensures repeatable, precise proportional control.

• Enhanced Control Precision: Replaces the older Gradutrol relay to provide superior positioning accuracy and reduced hysteresis in HVAC pneumatic systems.
• Full Installation Package: Includes the positive positioner, mounting bracket, lever, bias spring, and the 14004213-001 spring kit for complete field service.
• Universal Compatibility: Designed for MP953B and MP953F reverse acting models, supporting standard 13 inch pneumatic actuators.
• Direct OEM Replacement: Seamlessly replaces legacy part number 14004080-001 while maintaining Honeywell performance standards.

• What is the difference between 14004138-001 and 14004138-001/U? These parts are identical; the /U suffix denotes a "Universal" trade part number for the same technical component.
• Can this kit be used on direct-acting actuators? No, this specific kit is configured for reverse acting MP953B/F models. Direct-acting models require the 14004139-001 or 14004140-001 kits.
• Which feedback springs are included? The kit includes the 14004213-001 kit, which contains 3 psi (white), 5 psi (bronze), and 10 psi (violet) feedback springs.

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.