Honeywell 312471 Spring

The Honeywell 312471 is a high-performance replacement pneumatic actuator spring specifically engineered for 13-inch MP953A, MP953C, and MP953E series actuators. As a critical component in proportional control systems, this white spring provides a precise 4-11 PSI operating range, ensuring accurate valve positioning for steam, hot water, or chilled water applications. Designed for industrial-grade durability, it maintains consistent tension to overcome diaphragm pressure, allowing the pneumatic valve actuator to return to its fail-safe position. This spring is a direct OEM replacement part that meets the original technical specifications for Honeywell pneumatic controls, effectively reducing hysteresis and maintaining system calibration in commercial HVACR environments. Its color-coded white finish allows for rapid field identification during maintenance or multi-spring manifold configurations. When servicing Honeywell MP953 series actuators, installing the correct 4-11# spring is essential for achieving the required close-off pressure and ensuring the longevity of the rolling diaphragm and linkage assembly.

• Precise Pressure Range: Calibrated for 4 to 11 PSI to ensure accurate modulation and dependable terminal equipment control.
• Industrial Compatibility: Purpose-built for the 13" diameter Honeywell MP953A, C, and E actuators typically found in large-scale air handling units.
• Standardized Identification: Features a white color coating for immediate visual verification of spring tension and range.
• Robust Construction: Manufactured from heavy-duty spring steel to resist fatigue and maintain force integrity over thousands of cycles.

• How do I confirm if this spring fits my 13-inch actuator? This part is specifically sized for the 13-inch (330 mm) diameter housing of the MP953 series; check the actuator nameplate to verify the diameter and model suffix.
• Can I use this spring in a reverse-acting setup? The 312471 is typically used in direct-acting configurations for the MP953A/C/E models to provide the necessary return force.
• Is professional installation required for pneumatic spring replacement? Yes, the internal spring force in a 13-inch actuator is significant; use proper safety procedures to relieve tension before removing the actuator cover.

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.