Caleffi Z40 24V NC 2-Way Inverted Flare Zone Valve 3.5 Cv

The Caleffi Z40 is a 24-volt normally closed (NC) 2-way zone valve designed for hydronic heating and cooling systems. This compact valve features inverted flare connections for quick, reliable installation without soldering or threading.

Key Features:

• 24V normally closed operation - valve closes when power is off for fail-safe operation
• 3.5 Cv flow coefficient provides excellent flow capacity for residential and light commercial applications
• Inverted flare connections for easy, leak-free installation
• 2-way valve design for zone control in heating and cooling systems
• Compact construction saves space in tight mechanical rooms
• Durable brass body construction for long service life
• Quick-acting electric actuator for responsive zone control

Ideal for controlling individual zones in radiant heating systems, fan coil units, baseboard heating, and other hydronic applications. The normally closed configuration ensures energy savings by preventing flow when the zone thermostat is not calling for heat or cooling.