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- Z-one™ valves are used to automatically shut-off the flow or redirect hot and chilled water in hydronic systems, open systems, closed systems, low-pressure steam; and are UL listed for plenum installations. The motorized two-position, on/off, spring return Z1 series actuator has an end mounted push button for quick installation to the valve body. The actuator is equipped with or without an auxiliary micro-switch and models are either normally closed or normally open and with wire or terminal connections. The high temperature zone valve body Z2 series is 2-way straight through and the valve body Z3 series is 3-way diverting or mixing. The Z1 series actuator is easily attached by a push button lock and requires no tools. The Z-one™ valve provides 100% bubble-tight seat close-off leakage. The high temperature and high close-off performance characteristics of these zone valves, combined with the compact size, makes them suitable to fit inside baseboards or directly in fan coil units. Z-one™ valves are available with 1/2 to 1 in press fittings, the Presscon™ copper tail-piece with union nut, making installation and maintenance fast, easy and efficient. Special slots in the EPDM O-ring allows fluid to leak during system testing if unpressed and provide a perfect leak proof seal when completely pressed. Some models are low-lead brass, for domestic hot water applications.
Caleffi Z-one™ Zone Valve, 2-Way, Series: Z Series, 1/2 in Nominal, Press, 300 psi, 7.5 Cv, 24 VAC, 0.4 A, 32 to 240 deg F Water Temperature, 20 psi Differential, Screw Terminal, Forged Brass, 5-5/8 in OAL
- Installer friendly - Ample room for terminations, large screw terminals, automatic resettable fuse, snap-in transformers
- Application versatility - 3 selectable 120 VAC auxiliary switches for enabling pumps and boilers, dedicated pump outputs, unlimited zone expansion
- Universal compatibility - Compatible with 2, 3 and 4 wire zone valves and thermostats, configurable pump logic
- Coefficient of Volume7.5 CvEnd StylePRESSNominal Size1/2 inPressure Rating300 psiVoltage Rating24 VACAmperage Rating0.4 ADifferential20 psiDimensions5-5/8 in OALElectrical ConnectionsScrew TerminalManufacturerCaleffiManufacturer #Z54PMaterialForged BrassSeriesZ SeriesType2-WayWater Temperature32 to 240 degF