555050RP Zone Valve Power Head for Taco 550 570 Series 555 556 557 571 572

This Zone Valve Power Head is a replacement actuator compatible with Taco 550 and 570 series zone valves and matches OEM Part# 555-050RP.

Product Overview

The zone valve power head controls the flow of hot water in Taco hydronic heating systems. This zone valve power head replaces worn or failed actuators on Taco 550 and 570 series valves. Designed for residential and light commercial boilers, the zone valve power head delivers reliable open/close operation.

Key Features & Performance

• Synchronous motor provides quiet and consistent actuation
• Manual lever allows easy open/close override during installation or troubleshooting
• Snap-on design simplifies replacement without draining the system
• Compatible with both 2-wire and 3-wire Taco zone valve configurations
• Sealed construction resists dust and moisture in mechanical rooms
• Fast response minimizes temperature swings in zoned heating systems

Fitment & Compatibility

• Taco 550 Series: 555, 556, 557
• Taco 570 Series: 570, 571, 572
• Also compatible with valves using power head 555-050RP

Common Uses

• Zoned hydronic baseboard heating systems
• Radiant floor heating manifold controls
• Indirect water heater circulation loops
• Commercial boiler zone management

Technical Specifications

• Part Number(s): 555-050RP

Frequently Asked Questions

Q: What voltage does this power head require? A: It typically operates on 24VAC, matching the standard for Taco 550 and 570 series valves.

Q: How can a faulty power head be diagnosed? A: A continuity test across the motor leads or manual lever stiffness can indicate actuator failure.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.