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Refined By

Brand
Caleffi

Model

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Part Category

  • Actuators(1)
  • Bearings & Bushings(1)
  • Brackets & Retainers(4)
  • Caps & Plugs(1)
  • Controls(1)
  • Filters, Screens & Driers(9)
  • Gaskets & Seals(1)
  • Gauges & Thermometers(1)
  • Handles(1)
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  • Nuts, Bolts & Screws(36)
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  • Regulators(12)
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  • 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

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.

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.

...

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

Caleffi Z421042 INVERTED FLARE, 2.5 CV,50PSI

Caleffi
  • Mfr Part # Z421042
  • Parts Town # CALEZ421042
  • Quantity0

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

Caleffi Z421043 INVERTED FLARE, 3.5 CV,30PSI

Caleffi
  • Mfr Part # Z421043
  • Parts Town # CALEZ421043
  • Quantity0

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

Caleffi Z421053 2-WAY SAE NC 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z421053
  • Parts Town # CALEZ421053
  • Quantity0

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

Caleffi Z421411 1/2 NPT, 1.0 CV, 75 PSI

Caleffi
  • Mfr Part # Z421411
  • Parts Town # CALEZ421411
  • Quantity0

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

Caleffi Z421412 1/2 NPT, 2.5 CV, 50 PSI

Caleffi
  • Mfr Part # Z421412
  • Parts Town # CALEZ421412
  • Quantity0

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

Caleffi Z421413 2-WAY 1/2 NPT NC 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z421413
  • Parts Town # CALEZ421413
  • Quantity0

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

Caleffi Z421431 1/2 SWEAT, 1.0 CV, 75 PSI

Caleffi
  • Mfr Part # Z421431
  • Parts Town # CALEZ421431
  • Quantity0

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

Caleffi Z421432 2-WAY 1/2 SWT NC 24V W/O ES 2.5CV

Caleffi
  • Mfr Part # Z421432
  • Parts Town # CALEZ421432
  • Quantity0

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

Caleffi Z421433 2-WAY 1/2 SWT NC 24V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z421433
  • Parts Town # CALEZ421433
  • Quantity0

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

Caleffi Z421512 3/4 NPT, 2.5 CV, 50 PSI

Caleffi
  • Mfr Part # Z421512
  • Parts Town # CALEZ421512
  • Quantity0

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

Caleffi Z421513 3/4 NPT, 3.5 CV, 30 PSI

Caleffi
  • Mfr Part # Z421513
  • Parts Town # CALEZ421513
  • Quantity0

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

Caleffi Z421515 3/4 NPT, 5.0 CV, 25 PSI

Caleffi
  • Mfr Part # Z421515
  • Parts Town # CALEZ421515
  • Quantity0

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

Caleffi Z421517 2-WAY 3/4 NPT NC 24V W/O ES 7.5CV

Caleffi
  • Mfr Part # Z421517
  • Parts Town # CALEZ421517
  • Quantity0

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

Caleffi Z421532 3/4 SWEAT, 2.5 CV, 50 PSI

Caleffi
  • Mfr Part # Z421532
  • Parts Town # CALEZ421532
  • Quantity0

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

Caleffi Z421533 3/4 SWEAT, 3.5 CV, 30 PSI

Caleffi
  • Mfr Part # Z421533
  • Parts Town # CALEZ421533
  • Quantity0

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

Caleffi Z421535 3/4 SWEAT, 5.0 CV, 25 PSI

Caleffi
  • Mfr Part # Z421535
  • Parts Town # CALEZ421535
  • Quantity0

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

Caleffi Z421537 3/4 SWEAT, 7.5 CV, 20 PSI

Caleffi
  • Mfr Part # Z421537
  • Parts Town # CALEZ421537
  • Quantity0

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

Caleffi Z421617 1 NPT 8.0 CV 20 PSI

Caleffi
  • Mfr Part # Z421617
  • Parts Town # CALEZ421617
  • Quantity0

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

Caleffi Z421635 2-WAY 1 SWT NC 24V W/O ES 5.0CV

Caleffi
  • Mfr Part # Z421635
  • Parts Town # CALEZ421635
  • Quantity0

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

Caleffi Z421637 1 SWEAT 7.5 CV 20 PSI

Caleffi
  • Mfr Part # Z421637
  • Parts Town # CALEZ421637
  • Quantity0

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

Caleffi Z421737 1-1/4 SWEAT, 8.0 CV, 20 PSI

Caleffi
  • Mfr Part # Z421737
  • Parts Town # CALEZ421737
  • Quantity0

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

Caleffi Z426412 2-WAY 1/2 NPT NC 120V W/O ES 2.5CV

Caleffi
  • Mfr Part # Z426412
  • Parts Town # CALEZ426412
  • Quantity0

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

Caleffi Z426413 2-WAY 1/2 NPT NC 120V W/O ES 3.5CV

Caleffi
  • Mfr Part # Z426413
  • Parts Town # CALEZ426413
  • Quantity0

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

Caleffi Z426431 2-WAY 1/2 SWT NC 120V W/O ES 1.0CV

Caleffi
  • Mfr Part # Z426431
  • Parts Town # CALEZ426431
  • 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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