Upgraded 555-050RP Zone Valve Power Head Replacement Compatible with Taco 550 & 570 Series, 24V Heat-Actuated Thermal Actuator for Hydronic Heating Systems, Silent Boiler Control Part with End Switch

Restore Your Heating System’s Efficiency with the 555-050RP Replacement Power HeadIs your boiler zone valve sticking, making loud banging noises, or failing to open? The 555-050RP Zone Valve Power Head is the perfect direct replacement for Taco 550 and 570 series valves. Engineered for precision and longevity, this heat-actuated head restores smooth, silent control to your hydronic heating system without the need for expensive plumbing work.Key Features:✅ Wide Compatibility: Specifically designed to fit Taco zone valve bodies with sweat connections (1/2", 3/4", 1", and 1-1/4"). A perfect match for models 555, 556, 557, 560, 561, 562, 571, 572, and 573. ✅ Silent Thermal Operation: Say goodbye to motor hum and water hammer. Our advanced wax-filled element expands smoothly when heated, providing a silent and gradual open/close action that reduces wear on your pipes. ✅ Easy "Twist-Off" Installation: DIY-friendly design allows you to replace the head without draining your heating system. Simply disconnect the wires, twist off the old head, twist on the new one, and reconnect. Ideally suited for tight spaces. ✅ Reliability You Can Trust: Built with a corrosion-resistant housing and a sealed piston system, tested for over 50,000 cycles to withstand the harsh environment of boiler rooms. Technical Specifications: - Voltage: 24 VAC - Current: 0.9 Amps (Standard) - Wiring: 3-Wire Connection (Terminals 1, 2, 3) - Mechanism: Heat-Actuated Wax Motor - Operating Range: 40°F to 240°F - Function: Includes Isolated End Switch Package Includes: 1 x 555-050RP Zone Valve Power Head 1 x Installation Instruction Guide Note: Please ensure the power to your boiler is shut off before installation. This unit is a power head only; the valve body is not included.

• 【PERFECT COMPATIBILITY】Precisely engineered to replace Part No. 555-050RP. This power head is fully compatible with Taco 550 and 570 series zone valves, including models 555, 556, 557, 560, 561, 562, 571, 572, and 573. Fits standard 1/2" to 1-1/4" sweat connection valve bodies, restoring your hydronic heating system to peak performance.
• 【EASY INSTALLATION】Designed for a quick "Twist-Off, Twist-On" replacement without draining the system or removing the valve body. Unlike noisy motor-driven units, this power head uses a premium heat-responsive wax element (thermal actuator) to provide smooth, silent valve operation. It effectively eliminates water hammer noise while making DIY setup simple via a standard 3-wire connection.
• 【HEAVY-DUTY CONSTRUCTION】Built with a corrosion-resistant housing and high-conductivity copper components to withstand high-humidity boiler environments. Equipped with a reliable isolated end switch to ensure precise synchronization with your thermostat and circulator pump, delivering consistent zone control effectively.
• 【RELIABLE & ENERGY EFFICIENT】Optimized for residential and commercial hydronic heating systems. The 555-050RP actuator ensures rapid heat response and stable temperature management across different zones. Tested for over 50,000 heating cycles to guarantee long-term reliability and leak-free operation in harsh conditions.
• 【DEDICATED SUPPORT】We stand behind the quality of our boiler control parts with a comprehensive [3-Year] Warranty and professional customer service. If you encounter any compatibility questions or installation issues, our technical team is ready to assist you with a quick resolution or free replacement. Buy with confidence!