Caleffi Z54 1/2-Inch 24-Volt Sweat Normally Closed 2-Way Zone Valve

The Caleffi Z54 is a normally closed 2-way motorized zone valve designed for hydronic heating systems. This compact valve operates on 24-volt power and features 1/2-inch sweat (copper solder) connections for reliable installation in residential and light commercial applications.

Key Features:

• Normally closed configuration ensures zone remains shut until powered
• 24-volt operation compatible with standard HVAC control systems
• 1/2-inch sweat connections for direct soldering to copper piping
• 2.5 Cv flow coefficient provides excellent flow capacity
• End switch (ES) included for auxiliary control and system integration
• Compact design suitable for tight mechanical room installations

Ideal for zoned heating applications, the Z54 provides precise control over individual heating zones, improving comfort and energy efficiency. The integrated end switch allows for pump control and system status monitoring, making it a versatile component in modern hydronic systems.