Caleffi Zone Valves

Zone valves are used to automatically shut-off the flow or redirect hot and chilled water in hydronic heating and air conditioning systems, and is 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 valve body. The actuator is equipped with or without auxiliary switch and configured Normally Closed or Normally Opened with wire or terminal connections. The zero leakage high temperature zone valve body Z2 series is 2-way straight through and the valve body Z3 series is 3-way diverting. The Z1 series actuator is easily attached by a push button lock and without tools.

The high temperature and high close-off performance characteristics of these zone valves, combined with the compact size, makes them suitable to fit inside baseboard or directly in fan coils units.

Manuals -


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  • 3/4" Sweat Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644259A
    • Brand: Caleffi

    $169.95 / each

    Non-Stock Item Allow 5-7 Days to Ship Out
  • 1/2" Sweat Three-Way Motorized Ball Zone Bypass Valve View Specs

    $179.95 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 3/4" Sweat Three-Way Motorized Ball Zone Bypass Valve View Specs

    $179.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 1" Sweat Three-Way Motorized Ball Zone Bypass Valve View Specs
    • SKU: 644369A-3BY
    • Brand: Caleffi

    $189.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" Sweat Three-Way Motorized Diverter Valve View Specs
    • SKU: 644359A
    • Brand: Caleffi

    $179.95 / each

    Non-Stock Item Allow 2-3 Weeks to Ship Out
  • 1" Sweat Three-Way Motorized Diverter Valve View Specs
    • SKU: 644369A
    • Brand: Caleffi

    $189.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" NPT Three-Way Motorized Diverter Valve (120v) View Specs

    $96.95 / each

    Non-Stock Item Allow 2-3 Weeks to Ship Out
  • 3/4" Inverted Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) View Specs

    $84.95 / each

    In Stock! (4 Available) Ships in 24-48 Hrs
  • 3/4" Inverted Flare 2-Way, Normally Closed Zone Valve w/ (2) 3/4" Sweat Fittings 3.5 Cv (24V) View Specs

    $93.95 / each

    $269.85 / box
    3 x $89.95

    Out of Stock Allow 2-3 Weeks to Ship Out
  • 1/2" SAE Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) View Specs

    $89.95 / each

    $258.75 / box
    3 x $86.25

    Out of Stock Allow 2-3 Weeks to Ship Out
  • 3/4" Sweat Normally Closed Zone Valve w/ Aux. Switch 7.5Cv (24V) View Specs

    $85.95 / each

    $412.75 / box
    5 x $82.55

    In Stock! (55 Available) Ships in 24-48 Hrs
  • 1/2" Sweat Zone Valve w/ Aux. Switch (24V) View Specs

    $77.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1" Sweat Normally Closed Zone Valve w/ Aux. Switch 7.5Cv (24V) View Specs

    $99.95 / each

    In Stock! (14 Available) Ships in 24-48 Hrs
  • 3/4" Press 2-Way Zone Valve w/ Aux. Switch 7.5 Cv (24V) View Specs

    $109.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 1/2" Sweat Zone Valve  w/ Screw Terminal Connections (24V) View Specs

    $79.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" Sweat Normally Closed Zone Valve w/ Screw Terminal 7.5Cv (24V) View Specs

    $87.95 / each

    $422.25 / box
    5 x $84.45

    In Stock! (29 Available) Ships in 24-48 Hrs
  • Z4 1-1/4" Sweat 2-Way Zone Valve w/ Aux. Switch 7.5 Cv (24V) View Specs

    $127.95 / each

    $368.55 / box
    3 x $122.85

    In Stock! (13 Available) Ships in 24-48 Hrs
  • Z5 1/2" Inverted Flare 2-Way Zone Valve w/ Aux. Switch 3.5 Cv (24V) View Specs

    $89.95 / each

    $258.75 / box
    3 x $86.25

    Non-Stock Item Allow 2-3 Weeks to Ship Out
  • 1" Sweat Normally Closed Zone Valve w/ Screw Terminal 7.5Cv (24V) View Specs

    $107.95 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • Z5 3/4" Inverted Flare 2-Way Zone Valve w/ (2) 3/4" Sweat Fittings 3.5 Cv (24V) View Specs

    $95.95 / each

    $276.45 / box
    3 x $92.15

    Non-Stock Item Allow 2-3 Weeks to Ship Out