HONEYWELL 05701-A-0326

Description

Product Description

HONEYWELL 05701-A-0326 is a Replacement Actuator Motor and Gearbox Assembly for a Honeywell modulating or spring-return control valve, most commonly from the V5011, V5040, or similar series used in HVAC and industrial fluid control. This component is the electromechanical actuator that a PLC, DDC, or building management system commands to physically regulate flow. The primary function of the HONEYWELL 05701-A-0326 assembly is to convert an electrical control signal (typically 2-10 VDC or 4-20 mA for modulating, or 24VAC for spring-return) into precise rotary motion to position a valve shaft, thereby controlling the flow of water, steam, or other media. It directly translates a controller’s logic output into a physical process variable change. The reliability and accuracy of this actuator assembly are paramount for stable temperature, pressure, and flow control loops. For maintenance teams, the HONEYWELL 05701-A-0326 is a vital spare part for restoring critical control functionality.

Product Parameters / Technical Specifications

• Manufacturer: Honeywell (Building Technologies / Environmental and Combustion Controls)
• Product Line: Actuator Assembly for Honeywell Control Valves (e.g., V5011, V5040)
• Functional Designation: Actuator Motor & Gearbox Replacement Kit
• Actuator Type: Electric actuator, likely modulating (proportional control) or spring-return (falls to a safe position on power loss).
• Voltage: Common supply voltages are 24VAC (for spring-return) or 24VAC/VDC for modulating control.
• Control Signal: For modulating versions: 2-10 VDC or 4-20 mA input signal from the controller.
• Torque Output: Provides a specific output torque (e.g., 40 in-lb, 75 in-lb) matched to operate a specific size range of butterfly, ball, or globe valves.
• Travel Time: Standard 90-degree stroke time (e.g., 30, 60, or 90 seconds).
• Feedback: Includes a built-in potentiometer or other position feedback device to provide a valve position signal (e.g., 2-10 VDC feedback) back to the controller for verification.
• Mounting: Engineered as a direct bolt-on replacement for the original actuator on specific Honeywell valve bodies, with matching shaft connector and bolt pattern.

Advantages and Key Features

• Direct OEM Replacement: The HONEYWELL 05701-A-0326 ensures perfect mechanical fit, electrical compatibility, and performance matching with the original valve, guaranteeing correct operation and easy installation.
• Restores Loop Integrity: Replaces the most common point of failure in a control valve, quickly restoring precise and reliable automated flow control.
• Simplified Repair Process: Swapping the complete actuator assembly is a far more efficient and reliable repair than attempting to rebuild internal motor or gear components, minimizing system downtime.
• Pre-Calibrated Compatibility: The gear ratio, stroke, and feedback are designed to work with the specific valve series, making post-installation calibration straightforward—typically just setting the mechanical stops.
• Proven Durability: Built to Honeywell’s industrial specifications for long service life in demanding, continuously cycling applications.

Application Cases in Industry

• HVAC System Control: The primary application. The HONEYWELL 05701-A-0326 actuator operates 2-way and 3-way control valves for heating and cooling coils, chillers, boilers, and heat exchangers in commercial buildings.
• Industrial Process Temperature Control: Manages coolant or thermal fluid flow to regulate the temperature of machinery, injection molds, reactors, or plating baths.
• Energy Plant Control: Operates valves in district heating/cooling systems, steam distribution networks, and building utility interfaces.
• Light Industrial Fluid Regulation: Controls the flow of process water, chemicals, or other media in manufacturing and treatment applications.

Comparison with Competing Products

Selection Suggestions and Precautions

1. Exact Cross-Reference from Physical Unit: Imperative. The part number 05701-A-0326 must be taken from the nameplate of the failed actuator or the official valve spare parts list. Do not guess based on the valve body model alone.
2. Confirm Actuator Type and Electrical Specs: Determine if it is spring-return (fails safe) or modulating, and verify the supply voltage (e.g., 24VAC) and control signal (2-10 VDC, 4-20 mA). Installing the wrong type will cause immediate failure or unsafe operation.
3. Safe Isolation Procedure: Before starting work, isolate and depressurize the process fluid in the valve. Then, disconnect and lock out all electrical power to the actuator.
4. Mechanical Calibration is Mandatory: After installing the new HONEYWELL 05701-A-0326, you must perform a full mechanical calibration. This involves manually stroking the valve to set the 0% and 100% mechanical stops using the actuator’s adjustment cams. Then, calibrate the controller’s output signal to these positions.
5. Verify Feedback Signal: After installation and calibration, use a multimeter to verify that the position feedback signal from the actuator correctly tracks the valve’s physical position through its full stroke.
6. Sourcing from HVAC/R or Industrial Valve Distributors: Purchase the HONEYWELL 05701-A-0326 from authorized Honeywell building controls distributors or reputable industrial valve suppliers. This ensures you receive a genuine, correctly configured part with proper documentation.

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