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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 ½ to 1 inch 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.

  • Two-way zone valve
  • Male union body and two press fittings
  • Spring return
  • Normally closed actuator
  • Auxiliary micro-switch
  • Max body pressure: 300 psi.
  • Overall length: 5-5/8"
  • Temperature range: 32—240°F.
  • Suitable fluids: water, 50% max. glycol, 15 psi max steam.
  • Power supply: 24 V AC.
  • Power consumption: 5 W, 7 VA
  • Screw Terminal Connection
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Manuals (3)



Normally Closed



Connection Type:


Flow Capacity (Cv):


Max Temp (F):


Body Pattern:


End Switch:


Max Close-Off PSI:

20 psi


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