Caleffi Z44P 2-Way Valve, 1″ G Thread Male Union, 7.5 Cv, 20 psi ΔP, (2) NA16264 Press Fittings, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, 18″ Wires

Description

Caleffi Z44P : 2-Way Valve, 1″ G Thread Male Union, 7.5 Cv, 20 psi ΔP, (2) NA16264 Press Fittings, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, 18″ Wires

The Caleffi Z44P is a 2-way motorized zone valve assembly combining a 1″ G thread male union valve body with (2) NA16264 press fittings and a Z111000 normally closed spring-return actuator. This configuration provides dependable on/off control for hydronic heating and cooling systems, delivering efficient flow management and easy installation with press-fit adaptability.

The assembly is UL873, cULus Listed, and CE certified, meeting UL 1995 section 18 standards for air plenums and ducts. When power is removed, the spring-return actuator automatically closes the valve, ensuring fail-safe operation. It includes an integrated SPST auxiliary microswitch for control interlock or status feedback. The Z44P features a brass valve body, stainless steel stem, and EPDM rubber seals for long-lasting durability and leak resistance in hydronic systems.

Key Features

• 2-way motorized zone valve with normally closed actuator
• 1″ G thread male union connection with (2) NA16264 press fittings
• Spring-return actuator closes automatically when power is removed
• Integrated SPST auxiliary microswitch (0.4A @ 24V AC)
• Stainless steel stem and EPDM seals for long service life
• UL, cULus, and CE certified for plenum and duct applications

Technical Specifications

• Valve Type: 2-Way Straight
• Connection Type: 1″ G Thread Male Union with (2) NA16264 Press Fittings
• Maximum Operating Pressure: 300 psi
• Maximum ΔP: 20 psi
• Cv Rating: 7.5 gpm
• Medium Temperature Range: 32–240 °F
• Electric Supply: 24V AC
• Power Consumption: 7 VA (at full capacity)
• Auxiliary Switch Rating: 0.4A @ 24V AC
• Maximum Glycol Concentration: 50%
• Medium: Water, glycol solutions, vapor (max 15 psi)

Datasheets