CALEFFI Motorized Zone Valve Sweat Normally Closed 8016615964912 Z55 3/4 2-WAY 24V

( Brand: Caleffi ), ( Type: 3/4 Sweat ), ( Voltage: 24 V ), ( Item Diameter: 1 In ), ( Maximum Temperature: 240f ), ( Country Of Origin: United States ), ( Power: Less Than 100 W ), ( Item Weight: 1.7 Lbs. ), ( UPC: 016615964912 )

Review CALEFFI Z one Z55 Motorized Zone Valve 3/4 Inch Sweat 2-way Normally Closed 24v Nib

The Caleffi 016615964912 Z-One Z55 Motorized Zone Valve is a high-performance, 2-way, normally closed, motorized zone valve designed for use with hydronic heating and cooling systems. This valve is built with the latest technology to ensure optimal system efficiency and reliability.

The Z55 Motorized Zone Valve features a compact, sleek design that can easily be installed in various applications. It comes in a 3/4 inch sweat connection size, making it suitable for both new and retrofit projects. The valve operates on a 24-volt electric supply and is equipped with a high-quality, low-wattage actuator that provides quick and precise valve positioning.

The Z55 Motorized Zone Valve is built with a robust, corrosion-resistant body made of brass and stainless steel. It is designed to withstand the rigors of frequent use in harsh environments. The valve's solenoid is also protected by an IP66 rated cover, ensuring that it remains dry and free from contaminants, which contributes to its long service life.

The valve's motorized operation provides a number of advantages over traditional manual valves. It offers greater energy efficiency by allowing the system to be zoned, enabling users to control the temperature of individual zones. This leads to improved comfort levels and energy savings. The motorized operation also eliminates the need for manual intervention, providing greater convenience and reducing the risk of human error.

The Z55 Motorized Zone Valve is easy to install and integrate into hydronic systems. It comes with a comprehensive set of installation instructions and is compatible with various control systems. The valve can be easily programmed using simple commands, allowing users to customize the valve's operation to suit their specific requirements.

In summary, the Caleffi 016615964912 Z-One Z55 Motorized Zone Valve is a high-quality, reliable, and efficient solution for controlling hydronic heating and cooling systems. Its compact design, motorized operation, and robust construction make it an excellent choice for both new and retrofit projects. With its quick and precise valve positioning, energy savings, and ease of installation, this valve is an essential component for any hydronic system.

Caleffi 016615964912 Z-One Z55 Motorized Zone Valve: A Detailed Analysis

The Caleffi 016615964912 Z-One Z55 Motorized Zone Valve is a popular choice for residential and commercial hydronic heating systems. This 3/4 sweat 2-way normally closed 24V motorized zone valve comes with several advantages and disadvantages. In this analysis, we will discuss these factors to help you make an informed decision.

1. Reliable and Durable: Caleffi is a reputable brand known for manufacturing high-quality heating products. The Z55 motorized zone valve is no exception. Its robust design ensures long-lasting performance.

2. Energy Efficiency: The valve's motorized feature allows for precise temperature control in each zone, minimizing energy waste and reducing overall heating costs.

3. Quiet Operation: Unlike traditional manually operated zone valves, the Z55 operates quietly, making it an excellent choice for residential installations.

4. Compatibility: The valve is compatible with various hydronic heating systems, including solar, radiant floor heating, and underfloor heating.

5. Easy Installation: The valve's 3/4 sweat connection makes it easy to install, while the 2-wire 24V control allows for simple wiring.

1. Cost: The Caleffi Z55 motorized zone valve is more expensive than traditional manual zone valves.

2. Complexity: As a motorized valve, the Z55 may require more expertise to install and troubleshoot compared to manual valves.

3. Dependence on Power: Since the valve is motorized, it relies on electricity to function. In the event of a power outage, the valve will not operate, potentially affecting the heating system's performance.

The Caleffi 016615964912 Z-One Z55 Motorized Zone Valve offers several advantages, such as reliability, energy efficiency, quiet operation, compatibility, and ease of installation. However, its higher cost, complexity, and dependence on power may be considered disadvantages for some users.

If you are looking for precise temperature control in your hydronic heating system and are willing to invest in a more expensive, yet durable and energy-efficient solution, the Caleffi Z55 motorized zone valve is an excellent choice. However, if you have a limited budget or prefer a simpler, manually operated valve, you might consider other options. Always consult with a professional heating contractor to ensure the best choice for your specific application.

Details:

Built with Caleffi signature Italian craftsmanship, this unit is designed for silent operation and long-term durability in residential or commercial closed-loop systems. Ensure precision control of your hydroponic heating or cooling system with the Caleffi Z-one Motorized Zone Valve. Condition: Brand new in box NIB ; includes original internal packaging and installation instructions. Smart Design: Features a push-button release for quick actuator attachment/removal and manual override lever.

Technical Specs: 24 VAC power, 7.5 CV flow capacity, and a maximum switch rating of 300 mA. This complete Z55 assembly includes the high-torque Z151000 actuator and Z200537 forged brass valve body. Complete Assembly: Includes Z-one motorized actuator Z151000 and 2-way valve body Z200537. Designed for 3/4 sweat connections, the valve is Normally Closed NC and features a convenient manual lever opening during system filling or emergency operation.

The actuator is equipped with a sealed reed end switch, making it ideal for controlling pumps or boilers. Premium Construction: Forged brass body with a stainless steel stem and EPDM seals for leak-proof performance.

specifications wateheat:

• brand: Caleffi
• type: 3/4 Sweat
• voltage: 24 V
• item diameter: 1 In
• maximum temperature: 240f
• country of origin: United States
• power: Less Than 100 W
• item weight: 1.7 Lbs.
• upc: 016615964912

shipping wateheat:

• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• transit: 5-11 Days
• cost: $15.25
• type: Calculated

returns wateheat:

• policy: No Returns

payments wateheat:

• other
• wallet: Google-pay
• credit card: Diners-club

seller wateheat:

• # reviews: 172
• rating: 98.8%
• city: Stoughton, Massachusetts

general wateheat:

• Heating, Cooling Air > Water Heaters > Water Heater Parts
• condition: New

offer wateheat:

• quantity: 1
• started: April 5, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• sold: 0

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