Caleffi Z44 Z-One 2-Way Zone Valve 1/2" Sweat, 24V Normally Closed with Auxiliary Switch, 2.5 Cv

The Caleffi Z44 Z-One is a 2-way, normally closed motorized zone valve with 1/2" sweat connections, a 24V actuator and an auxiliary end switch.

Z-One zone valves control flow to individual heating or cooling zones in hydronic systems. The valve stays closed until the thermostat calls, and the end switch can signal the boiler or circulator. The valve has a flow capacity of 2.5 Cv and a maximum close-off differential of 50 psi, and is rated to 240°F. The actuator can be removed from the body for service.

Before ordering, confirm the 1/2" sweat connection, the 24V control voltage, and that your system differential pressure stays below 50 psi.

Specifications

• Brand: Caleffi
• Manufacturer Part #: Z44
• Series: Z-One
• Type: 2-Way Zone Valve with Actuator
• Body Pattern: Straight-through, 2-way
• Size: 1/2"
• Connection: Sweat
• Voltage: 24V
• Position: Normally Closed
• End Switch: Yes
• Flow Capacity (Cv): 2.5
• Max Close-Off Pressure: 50 psi
• Max Temperature: 240°F
• UPC: 8016615964813
• Category: 2-Way Zone Valve

Documents

• Technical Data Sheet (PDF)
• Installation & Operation Manual (PDF)
• Submittal Sheet (PDF)
• Technical Bulletin (PDF)

See also: 2-way zone valve, all Caleffi products.