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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  • 1/2" NPT Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644240A
    • Brand: Caleffi

    $159.95 / each

    Non-Stock Item Allow 5-7 Days to Ship Out
  • 1/2" Sweat Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644249A
    • Brand: Caleffi

    $157.95 / each

    Non-Stock Item Allow 5-7 Days to Ship Out
  • 3/4" NPT Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644250A
    • Brand: Caleffi

    $165.95 / each

    Non-Stock Item Allow 5-7 Days to Ship Out
  • 3/4" Press Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644256A
    • Brand: Caleffi

    $178.95 / each

    Non-Stock Item Allow 5-7 Days to Ship Out
  • 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" NPT Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644260A
    • Brand: Caleffi

    $176.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1" Sweat Two-Way Motorized Ball Zone Valve View Specs
    • SKU: 644269A
    • Brand: Caleffi

    $173.95 / each

    In Stock! (4 Available) Ships in 24-48 Hrs
  • 1/2" Sweat Three-Way Motorized Ball Zone Valve View Specs

    $171.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" Press Three-Way Motorized Ball Zone Valve View Specs

    $183.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" Sweat Three-Way Motorized Ball Zone Valve View Specs

    $179.95 / each

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

    $189.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" NPT Three-Way Motorized Ball Zone Valve View Specs
    • SKU: 644340A
    • Brand: Caleffi

    $173.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" NPT Three-Way Motorized Ball Zone Valve View Specs
    • SKU: 644350A
    • Brand: Caleffi

    $178.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1" NPT Three-Way Motorized Ball Zone Valve View Specs
    • SKU: 644360A
    • Brand: Caleffi

    $189.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" Sweat Three-Way Motorized Ball Zone Bypass Valve View Specs

    $179.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 3/4" Press Three-Way Motorized Ball Zone Bypass Valve View Specs

    $183.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1" Sweat Three-Way Motorized Ball Zone Bypass Valve View Specs
    • SKU: 644369A-3BY
    • Brand: Caleffi

    $189.95 / 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

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" NPT Three-Way Motorized Ball Zone Bypass Valve View Specs
    • SKU: 644340A-3BY
    • Brand: Caleffi

    $173.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 24V 3-wire Control Actuator 6442 and 6443 Series Valves View Specs

    $126.95 / each

    In Stock at Supplier! Ships in 3-5 Days