Pros, Join Our TradeMaster Program!
  • 3/4" Press Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Press Two-Way Motorized Ball Zone Valve 644256A 3/4" Press Two-Way Motorized Ball Zone Valve
    SKU: 644256A Caleffi
    SKU: 644256A
    Brand: Caleffi
    $219.34 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Sweat Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Sweat Two-Way Motorized Ball Zone Valve 644259A 3/4" Sweat Two-Way Motorized Ball Zone Valve
    SKU: 644259A Caleffi
    SKU: 644259A
    Brand: Caleffi
    $199.27 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" NPT Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" NPT Two-Way Motorized Ball Zone Valve 644250A 3/4" NPT Two-Way Motorized Ball Zone Valve
    SKU: 644250A Caleffi
    SKU: 644250A
    Brand: Caleffi
    $177.07 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" NPT Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" NPT Two-Way Motorized Ball Zone Valve 644260A 1" NPT Two-Way Motorized Ball Zone Valve
    SKU: 644260A Caleffi
    SKU: 644260A
    Brand: Caleffi
    $191.81 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" Sweat Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" Sweat Two-Way Motorized Ball Zone Valve 644269A 1" Sweat Two-Way Motorized Ball Zone Valve
    SKU: 644269A Caleffi
    SKU: 644269A
    Brand: Caleffi
    $188.15 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" Press Two-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" Press Two-Way Motorized Ball Zone Valve 644266A 1" Press Two-Way Motorized Ball Zone Valve
    SKU: 644266A Caleffi
    SKU: 644266A
    Brand: Caleffi
    $219.63 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Press Three-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Press Three-Way Motorized Ball Zone Valve 644356A 3/4" Press Three-Way Motorized Ball Zone Valve
    SKU: 644356A Caleffi
    SKU: 644356A
    Brand: Caleffi
    $220.44 each
    Not Added to List Icon Add to List
    Added to List Icon List
    1
    Mon, Nov 8
    1
    QtyArrives
    1 Mon, Nov 8
    Questions? Call 1-888-757-4774
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Sweat Three-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Sweat Three-Way Motorized Ball Zone Valve 644359A 3/4" Sweat Three-Way Motorized Ball Zone Valve
    SKU: 644359A Caleffi
    SKU: 644359A
    Brand: Caleffi
    $210.48 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Tue, Dec 7 – Thu, Jan 6
    Arrives
    Tue, Dec 7 – Thu, Jan 6
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" Sweat Three-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" Sweat Three-Way Motorized Ball Zone Valve 644369A 1" Sweat Three-Way Motorized Ball Zone Valve
    SKU: 644369A Caleffi
    SKU: 644369A
    Brand: Caleffi
    $217.57 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" NPT Three-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" NPT Three-Way Motorized Ball Zone Valve 644350A 3/4" NPT Three-Way Motorized Ball Zone Valve
    SKU: 644350A Caleffi
    SKU: 644350A
    Brand: Caleffi
    $191.01 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" NPT Three-Way Motorized Ball Zone Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" NPT Three-Way Motorized Ball Zone Valve 644360A 1" NPT Three-Way Motorized Ball Zone Valve
    SKU: 644360A Caleffi
    SKU: 644360A
    Brand: Caleffi
    $223.08 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Press Three-Way Motorized Ball Zone Bypass Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Press Three-Way Motorized Ball Zone Bypass Valve 644356A-3BY 3/4" Press Three-Way Motorized Ball Zone Bypass Valve
    SKU: 644356A-3BY Caleffi
    SKU: 644356A-3BY
    Brand: Caleffi
    $225.09 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" Sweat Three-Way Motorized Ball Zone Bypass Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" Sweat Three-Way Motorized Ball Zone Bypass Valve 644369A-3BY 1" Sweat Three-Way Motorized Ball Zone Bypass Valve
    SKU: 644369A-3BY Caleffi
    SKU: 644369A-3BY
    Brand: Caleffi
    $214.54 each
    Not Added to List Icon Add to List
    Added to List Icon List
    3
    Mon, Nov 8
    4
    QtyArrives
    3 Mon, Nov 8
    1 Wed, Nov 10 – Thu, Nov 11
    Questions? Call 1-888-757-4774
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Sweat Three-Way Motorized Ball Zone Bypass Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Sweat Three-Way Motorized Ball Zone Bypass Valve 644359A-3BY 3/4" Sweat Three-Way Motorized Ball Zone Bypass Valve
    SKU: 644359A-3BY Caleffi
    SKU: 644359A-3BY
    Brand: Caleffi
    $243.02 each
    Not Added to List Icon Add to List
    Added to List Icon List
    2
    Wed, Nov 10 – Thu, Nov 11
    2
    QtyArrives
    2 Wed, Nov 10 – Thu, Nov 11
    Questions? Call 1-888-757-4774
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" NPT Three-Way Motorized Ball Zone Bypass Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" NPT Three-Way Motorized Ball Zone Bypass Valve 644350A-3BY 3/4" NPT Three-Way Motorized Ball Zone Bypass Valve
    SKU: 644350A-3BY Caleffi
    SKU: 644350A-3BY
    Brand: Caleffi
    $219.77 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 24V 3-wire Control Actuator 6442 and 6443 Series Valves Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    24V 3-wire Control Actuator 6442 and 6443 Series Valves 644004 24V 3-wire Control Actuator 6442 and 6443 Series Valves
    SKU: 644004 Caleffi
    SKU: 644004
    Brand: Caleffi
    $124.43 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" NPT Three-Way Motorized Ball Zone Bypass Valve Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" NPT Three-Way Motorized Ball Zone Bypass Valve 644360A-3BY 1" NPT Three-Way Motorized Ball Zone Bypass Valve
    SKU: 644360A-3BY Caleffi
    SKU: 644360A-3BY
    Brand: Caleffi
    $229.62 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Press 2-Way Thermo-Electric Zone Valve w/ TwisTop Actuator Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Press 2-Way Thermo-Electric Zone Valve w/ TwisTop Actuator 676256A 3/4" Press 2-Way Thermo-Electric Zone Valve w/ TwisTop Actuator
    SKU: 676256A Caleffi
    SKU: 676256A
    Brand: Caleffi
    $117.49 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator 676259A 3/4" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator
    SKU: 676259A Caleffi
    SKU: 676259A
    Brand: Caleffi
    $124.22 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator 676269A 1" Sweat Union 2-Way Zone Valve w/ TwisTop Actuator
    SKU: 676269A Caleffi
    SKU: 676269A
    Brand: Caleffi
    $121.74 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Inverted Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Inverted Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) Z40 3/4" Inverted Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V)
    SKU: Z40 Caleffi
    SKU: Z40
    Brand: Caleffi
    (1)
    $93.50 each
    Not Added to List Icon Add to List
    Added to List Icon List
    20
    Mon, Nov 8
    20
    QtyArrives
    20 Mon, Nov 8
    Questions? Call 1-888-757-4774
    Not Added to List Icon Add to List
    Added to List Icon List
  • 3/4" Inverted Flare 2-Way, NC Zone Valve w/ (2) 3/4" Sweat Fittings 3.5 Cv (24V) Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    3/4" Inverted Flare 2-Way, NC Zone Valve w/ (2) 3/4" Sweat Fittings 3.5 Cv (24V) Z40F 3/4" Inverted Flare 2-Way, NC Zone Valve w/ (2) 3/4" Sweat Fittings 3.5 Cv (24V)
    SKU: Z40F Caleffi
    SKU: Z40F
    Brand: Caleffi
    $90.52 each
    Not Added to List Icon Add to List
    Added to List Icon List
    4
    Mon, Nov 8
    4
    QtyArrives
    4 Mon, Nov 8
    Questions? Call 1-888-757-4774
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1/2" SAE Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1/2" SAE Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V) Z42 1/2" SAE Flare 2-Way, Normally Closed Zone Valve 3.5 Cv (24V)
    SKU: Z42 Caleffi
    SKU: Z42
    Brand: Caleffi
    $87.13 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Tue, Dec 7 – Thu, Jan 6
    Arrives
    Tue, Dec 7 – Thu, Jan 6
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
  • 1/2" Sweat Zone Valve w/ Aux. Switch (24V) Product Image
    Not Added to List Icon Add to List
    Added to List Icon List
    1/2" Sweat Zone Valve w/ Aux. Switch (24V) Z44 1/2" Sweat Zone Valve w/ Aux. Switch (24V)
    SKU: Z44 Caleffi
    SKU: Z44
    Brand: Caleffi
    $77.96 each
    Not Added to List Icon Add to List
    Added to List Icon List
    Mon, Nov 22 – Tue, Nov 30
    Arrives
    Mon, Nov 22 – Tue, Nov 30
    Questions? Call 1-888-757-4774 or
    Not Added to List Icon Add to List
    Added to List Icon List
FAQs, Manuals & Videos

Resources

Videos

Articles

  • 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.
  • Product Image

  • Product Image

    Select 2 to 3 items to compare

  • Product Image

    Compare up to 1 more item

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.