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Caleffi Replacement Parts

Caleffi specializes in precision-engineered components that protect hydronic and HVAC systems from pressure imbalance and thermal stress. These parts are essential for maintaining safe operation while improving overall system efficiency.

  • Pressure relief and safety valves
  • Radiant manifolds
  • Flow switches
  • Temperature and pressure monitoring devices

Parts Town offers a wide range of real OEM Caleffi parts that are always genuine OEM and tested and approved by the equipment manufacturer. Designed for exact fit and dependable performance, these components help deliver reliability, safety, efficiency and warranty protection across demanding applications.

With the most in-stock parts on the planet, Parts Town helps minimize downtime when system issues arise. Plus, Parts Town offers same-day shipping on in-stock items until 9 PM ET Monday–Friday, making it easy to get real parts faster and keep equipment protected.

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Caleffi

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  • Actuators(1)
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  • Caps & Plugs(1)
  • Controls(1)
  • Filters, Screens & Driers(9)
  • Gaskets & Seals(1)
  • Gauges & Thermometers(1)
  • Handles(1)
  • Hoses, Pipes & Tubing(1)
  • Insulation(25)
  • Knobs & Dials(1)
  • Nuts, Bolts & Screws(36)
  • Panels, Covers & Lids(2)
  • Pressure Relief Controls(6)
  • Probes & Sensors(3)
  • Pumps & Motors(5)
  • Regulators(12)
  • Switches & Buttons(18)
  • Valves, Solenoids & Fittings(363)
  • Washers, Rings & Spacers(11)

Category

Plumbing Supplies (37)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

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Caleffi

Caleffi Parts & Manuals

Caleffi parts from Parts Town are built to safeguard hydronic and HVAC systems where pressure balance and temperature control matter most. Our selection of real OEM Caleffi replacement parts includes critical components like air separators, balancing valves and pressure relief valves designed to protect equipment from damage. We only carry genuine OEM Caleffi parts so you can keep your system well-maintained and performing reliably day in and day out.

...
Caleffi

Caleffi Parts & Manuals

Caleffi parts from Parts Town are built to safeguard hydronic and HVAC systems where pressure balance and temperature control matter most. Our selection of real OEM Caleffi replacement parts includes critical components like air separators, balancing valves and pressure relief valves designed to protect equipment from damage. We only carry genuine OEM Caleffi parts so you can keep your system well-maintained and performing reliably day in and day out.

...

Caleffi 644350A3BY 644 MOTORIZED BALL VALVE 3/4" MNPT - 3-WAY BYPASS MOTORIZED VALVE

Caleffi
  • Mfr Part # 644350A3BY
  • Parts Town # CALE644350A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644356A 644 MOTORIZED BALL VALVE 3/4" PRESS - 3-WAY MOTORIZED VALVE

Caleffi
  • Mfr Part # 644356A
  • Parts Town # CALE644356A
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644356A3BY 644 MOTORIZED BALL VALVE 3/4" PRESS - 3-WAY BYPASS MOTORIZE VALVE

Caleffi
  • Mfr Part # 644356A3BY
  • Parts Town # CALE644356A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644359A 644 MOTORIZED BALL VALVE 3/4" SWT - 3-WAY MOTORIZED VALVE

Caleffi
  • Mfr Part # 644359A
  • Parts Town # CALE644359A
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644359A3BY 644 MOTORIZED BALL VALVE 3/4" SWT - 3-WAY BYPASS MOTORIZED VALVE

Caleffi
  • Mfr Part # 644359A3BY
  • Parts Town # CALE644359A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644360A 644 MOTORIZED BALL VALVE 1" MNPT - 3-WAY MOTORIZED VALVE

Caleffi
  • Mfr Part # 644360A
  • Parts Town # CALE644360A
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644360A3BY 644 MOTORIZED BALL VALVE 1" MNPT - 3-WAY BYPASS MOTORIZED VALVE

Caleffi
  • Mfr Part # 644360A3BY
  • Parts Town # CALE644360A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644366A 644 MOTORIZED BALL VALVE 1" PRESS - 3-WAY MOTORIZED VALVE

Caleffi
  • Mfr Part # 644366A
  • Parts Town # CALE644366A
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644366A3BY 644 MOTORIZED BALL VALVE 1" PRESS - 3-WAY BYPASS MOTORIZED VALVE

Caleffi
  • Mfr Part # 644366A3BY
  • Parts Town # CALE644366A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644369A 644 MOTORIZED BALL VALVE 1" SWT - 3-WAY MOTORIZED VALVE

Caleffi
  • Mfr Part # 644369A
  • Parts Town # CALE644369A
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 644369A3BY 644 MOTORIZED BALL VALVE 1" SWT - 3-WAY BYPASS MOTORIZED VALVE

Caleffi
  • Mfr Part # 644369A3BY
  • Parts Town # CALE644369A3BY
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 645114 REPLACEMENT LEGIOMIX ACTUATOR

Caleffi
  • Mfr Part # 645114
  • Parts Town # CALE645114
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Caleffi 656344 THERMO-ELECTRIC ACTUATOR 24V W/MAN.OPENI

Caleffi
  • Mfr Part # 656344
  • Parts Town # CALE656344
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 656354 THERMO-ELECT. ACT. 24V W/MAN.OPEN.&MICRO

Caleffi
  • Mfr Part # 656354
  • Parts Town # CALE656354
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 656404 THERMOELECTRIC ACTUATOR 24V

Caleffi
  • Mfr Part # 656404
  • Parts Town # CALE656404
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 656414 THERMO-ELECTRIC ACTUATOR 24V W/MICROSWIT

Caleffi
  • Mfr Part # 656414
  • Parts Town # CALE656414
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Caleffi 656504 FLOWMATIC PICV ACTUATOR 24V ON/OFF, NC

Caleffi
  • Mfr Part # 656504
  • Parts Town # CALE656504
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 656524 FLOWMATIC® PICV ACTUATOR 24V, 0-10 V PROPORTIONAL , NC

Caleffi
  • Mfr Part # 656524
  • Parts Town # CALE656524
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 656604 FLOWMATIC PICV ACTUATOR 24V NO

Caleffi
  • Mfr Part # 656604
  • Parts Town # CALE656604
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 659044 MANIFOLD HOUSING BOX:UP TO 3 OUTLET ASSY

Caleffi
  • Mfr Part # 659044
  • Parts Town # CALE659044
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 659064 MANIFOLD HOUSING BOX:UP TO 6 OUTLET ASSY

Caleffi
  • Mfr Part # 659064
  • Parts Town # CALE659064
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 659084 MANIFOLD HOUSING BOX:UPTO 10 OUTLET ASSY

Caleffi
  • Mfr Part # 659084
  • Parts Town # CALE659084
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 659104 MANIFOLD HOUSING BOX:UP TO13 OUTLET ASSY

Caleffi
  • Mfr Part # 659104
  • Parts Town # CALE659104
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Caleffi 659124 MANIFOLD HOUSING BOX:UP TO17 OUTLET ASSY

Caleffi
  • Mfr Part # 659124
  • Parts Town # CALE659124
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

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