Caleffi Z45P : 2-Way Valve, 1" G Thread Male Union, 7.5 Cv, 20 psi ΔP, (2) NA16265 Press Fittings, Normally Closed Spring Return Valve Actuator, 24V AC, On/Off Control Signal, (1) SPST 0.4A Auxiliary Switch, 18" Wires
The Caleffi Z45P is a 2-way motorized zone valve assembly designed for hydronic heating and cooling systems. It combines a 1" G thread male union brass valve body with (2) NA16265 press fittings and a Z111000 normally closed spring-return actuator. The actuator provides automatic shutoff when power is removed, ensuring safe and reliable system control.
This assembly is UL873, cULus Listed, and CE certified, meeting UL 1995 section 18 standards for air plenums and ducts. The stainless steel stem, EPDM rubber seals, and brass valve body provide long-lasting durability and corrosion resistance. The integrated SPST auxiliary microswitch offers feedback or interlock capability for enhanced system management.
Key Features
- 2-way motorized zone valve with normally closed actuator
- 1" G thread male union connection with (2) NA16265 press fittings
- Spring-return actuator automatically closes when power is removed
- Integrated SPST auxiliary microswitch (0.4A @ 24V AC)
- Stainless steel stem with EPDM seals and paddle for dependable sealing
- 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) NA16265 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
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Caleffi Z-One Motorized Zone Valve Installation and Commissioning Manual |
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- Valve Pattern:
- 2-Way
- Valve Size:
- 1 Inch
- Connection Type:
- G Thread Male Union
- CV Rating:
- 7.5
- GPM:
- 15 @ 4 psi
- Actuator Type:
- Non Fail-Safe
- Voltage:
- 24VAC
- Control Signal:
- On/Off
- Auxillary Switch:
- Yes
- NEMA 4X Enclosure:
- No
