Honeywell V4055D1043 Actuator

The Honeywell V4055D1043 is a heavy-duty on-off fluid power gas valve actuator engineered for commercial and industrial burner systems. Designed for 120Vac operation, this fast-opening model features a 13-second opening cycle and a safety-critical closing time of one second or less. This specific Honeywell actuator includes an integrated proof of closure auxiliary switch, ensuring the valve is physically seated before the next burner sequence begins, making it ideal for systems requiring strict safety interlocks. It is rated for a 5 psi maximum operating pressure and performs reliably across a wide temperature range of -40°F to 150°F. The V4055D1043 is a direct functional equivalent to the V4055D1043/U and is primarily compatible with low-pressure V5055C or V5097C series valve bodies. Its robust construction provides final safety shutoff service for a variety of fuel gases, maintaining consistent performance in demanding high-cycle environments.

Key Benefits

• Proof of Closure Switch: Built-in interlock switch provides positive mechanical verification of the valve’s closed position for enhanced safety compliance.
• Fast-Opening Performance: 13-second timing ensures a smooth light-off for industrial burners while maintaining a rapid 1-second emergency shutdown.
• Universal Mounting: Multi-poise design allows for installation in any orientation directly to the valve bonnet using three set screws.
• Visual Position Indication: Features a red indicator to signal the valve is open and a yellow indicator for the closed position, simplifying HVACR troubleshooting.
• Industrial Compatibility: Specifically optimized for V5055C and V5097C gas valves, ensuring a secure valve seal overtravel interlock.

Common Questions

What is the difference between V4055D1043 and V4055D1043/U?
They are technically identical. The "/U" suffix simply denotes a Universal "Tradeline" version packaged for wholesale distribution, but the specifications and internal components are the same.

Can this actuator be used with high-pressure gas valves?
No, the V4055D1043 is specifically rated for low-pressure systems with a maximum safe operating pressure of 5 psi. For higher pressure requirements, a V4055B or V4055E series actuator should be used.

Is the proof of closure switch field-adjustable?
The internal proof of closure (POC) switch is factory-set to ensure the safety interlock is only completed when the valve is fully seated. Unlike standard auxiliary switches, the POC switch is not meant for field adjustment to maintain safety certifications.

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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.