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

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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.

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No matching models were found. Please try changing your search keyword or adjusting your search selections.

Caleffi Z441413 2-WAY 1/2 NPT NO 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z441413
  • Parts Town # CALEZ441413
  • Quantity0

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

Caleffi Z441433 2-WAY 1/2 SWT NO 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z441433
  • Parts Town # CALEZ441433
  • Quantity0

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

Caleffi Z441513 2-WAY 3/4 NPT NO 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z441513
  • Parts Town # CALEZ441513
  • Quantity0

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

Caleffi Z441533 2-WAY 3/4 SWT NO 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z441533
  • Parts Town # CALEZ441533
  • Quantity0

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

Caleffi Z441537 2WNO 24V N/ES 3/4 SWT 7.5CV

Caleffi
  • Mfr Part # Z441537
  • Parts Town # CALEZ441537
  • Quantity0

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

Caleffi Z446413 2WAY, NO, N ES 120V 1/2 3.5

Caleffi
  • Mfr Part # Z446413
  • Parts Town # CALEZ446413
  • Quantity0

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

Caleffi Z446433 2-WAY 1/2 SWT NO 120V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z446433
  • Parts Town # CALEZ446433
  • Quantity0

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

Caleffi Z44P Z-ONE™ 2-WAY,NCW/ MS,24V,1/2",UNION PRESS,2.5CV

Caleffi
  • Mfr Part # Z44P
  • Parts Town # CALEZ44P
  • Quantity0

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

Caleffi Z45 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATORW/ SWITCH,24V,3/4",SWEAT,7.5CV,20 PSI ∆P

Caleffi
  • Mfr Part # Z45
  • Parts Town # CALEZ45
  • Quantity0

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

Caleffi Z451517 24V NC W/ES 3/4 NPT 7.5 CV W/TERM.BLK

Caleffi
  • Mfr Part # Z451517
  • Parts Town # CALEZ451517
  • Quantity0

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

Caleffi Z451533 2-WAY 3/4 SWT NC 24V W/TERMBLOCK 3.5CV

Caleffi
  • Mfr Part # Z451533
  • Parts Town # CALEZ451533
  • Quantity0

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

Caleffi Z451617 24V NC 2-WAY 1 NPT 7.5 CV W/TERM.BLK

Caleffi
  • Mfr Part # Z451617
  • Parts Town # CALEZ451617
  • Quantity0

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

Caleffi Z451635 2-WAY 1 SWT NC 24V W/ES 5.0CV

Caleffi
  • Mfr Part # Z451635
  • Parts Town # CALEZ451635
  • Quantity0

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

Caleffi Z45P Z-ONE™ 2-WAY,NCW/ MS,24V,3/4", UNION PRESS,7.5CV

Caleffi
  • Mfr Part # Z45P
  • Parts Town # CALEZ45P
  • Quantity0

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

Caleffi Z45P3 Z-ONE™ 2-WAY,NCW/ MS,24V,3/4", UNION PRESS,3.5CV

Caleffi
  • Mfr Part # Z45P3
  • Parts Town # CALEZ45P3
  • Quantity0

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

Caleffi Z45PL Z-ONE™ 2-WAY,NCW/ MS,24V,3/4", UNION PRESS LONG,7.5CV

Caleffi
  • Mfr Part # Z45PL
  • Parts Town # CALEZ45PL
  • Quantity0

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

Caleffi Z46 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATORW/ SWITCH,24V,1",SWEAT,7.5CV,20 PSI ∆P

Caleffi
  • Mfr Part # Z46
  • Parts Town # CALEZ46
  • Quantity0

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

Caleffi Z46P Z-ONE™ 2-WAY,NCW/ MS,24V,1",UNION PRESS,7.5CV

Caleffi
  • Mfr Part # Z46P
  • Parts Town # CALEZ46P
  • Quantity0

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

Caleffi Z47 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATORW/ SWITCH,24V,1 1/4",SWEAT,7.5CV,20 PSI ∆P

Caleffi
  • Mfr Part # Z47
  • Parts Town # CALEZ47
  • Quantity0

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

Caleffi Z50 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATOR TERMINAL BLOCKW/ SWITCH,24V,INVERTED FLARE,INVERTED FLARE,3.5CV,35 PSI ∆P

Caleffi
  • Mfr Part # Z50
  • Parts Town # CALEZ50
  • Quantity0

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

Caleffi Z50F Z-ONE™ 2-WAY,NC TERMINAL BLOCK, W/ MS,24V,INVERTED FLARE, INVERTED FLARE,3.5CV W/ FITTINGS

Caleffi
  • Mfr Part # Z50F
  • Parts Town # CALEZ50F
  • Quantity0

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

Caleffi Z54 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATOR TERMINAL BLOCKW/ SWITCH,24V,1/2",SWEAT,2.5CV,50 PSI ∆P

Caleffi
  • Mfr Part # Z54
  • Parts Town # CALEZ54
  • Quantity0

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

Caleffi Z54P Z-ONE™ 2-WAY,NC TERMINAL BLOCK, W/ MS,24V,1/2", UNION PRESS,2.5CV

Caleffi
  • Mfr Part # Z54P
  • Parts Town # CALEZ54P
  • Quantity0

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

Caleffi Z55 Z-ONE™ 2-WAY VALVE BODY,NORMALLY CLOSED ACTUATOR TERMINAL BLOCKW/ SWITCH,24V,3/4",SWEAT,7.5CV,20 PSI ∆P

Caleffi
  • Mfr Part # Z55
  • Parts Town # CALEZ55
  • 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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