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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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  • Hoses, Pipes & Tubing(1)
  • Insulation(25)
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  • Nuts, Bolts & Screws(36)
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  • 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 523186A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE 1 1/2" PRESS-ASSE 1017

Caleffi
  • Mfr Part # 523186A
  • Parts Town # CALE523186A
  • Quantity0

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

Caleffi 523188A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE 1 1/2" SWEAT-ASSE 1017

Caleffi
  • Mfr Part # 523188A
  • Parts Town # CALE523188A
  • Quantity0

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

Caleffi 523190A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE 2" NPT-ASSE 1017

Caleffi
  • Mfr Part # 523190A
  • Parts Town # CALE523190A
  • Quantity0

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

Caleffi 523196A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE 2" PRESS-ASSE 1017

Caleffi
  • Mfr Part # 523196A
  • Parts Town # CALE523196A
  • Quantity0

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

Caleffi 523198A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE 2" SWEAT-ASSE 1017

Caleffi
  • Mfr Part # 523198A
  • Parts Town # CALE523198A
  • Quantity0

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

Caleffi 523199A MIXCAL+™ HIGH FLOW 3-WAY MIXING VALVE BODY ONLY 14.2CV-ASSE 1017

Caleffi
  • Mfr Part # 523199A
  • Parts Town # CALE523199A
  • Quantity0

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

Caleffi 533000H PRESSCAL™ COMPACT PRV ASSE 1003, CARTRIDGE

Caleffi
  • Mfr Part # 533000H
  • Parts Town # CALE533000H
  • Quantity0

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

Caleffi 533340HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" NPT FEMALE UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533340HA
  • Parts Town # CALE533340HA
  • Quantity0

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

Caleffi 533341HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" NPT FEMALE UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533341HA
  • Parts Town # CALE533341HA
  • Quantity0

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

Caleffi 533350HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" NPT FEMALE UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533350HA
  • Parts Town # CALE533350HA
  • Quantity0

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

Caleffi 533351HA Pressure Reducing Valve with Pressure Gauge, Compact, Adjustable-Preset 45PSI, 3/4" FNPT Union, 10GPM Max PresCal

Caleffi
  • Mfr Part # 533351HA
  • Parts Town # CALE533351HA
  • Quantity0

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

Caleffi 533640HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" PRESS UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533640HA
  • Parts Town # CALE533640HA
  • Quantity0

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

Caleffi 533641HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" PRESS UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533641HA
  • Parts Town # CALE533641HA
  • Quantity0

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

Caleffi 533650HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" PRESS UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533650HA
  • Parts Town # CALE533650HA
  • Quantity0

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

Caleffi 533651HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" PRESS UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533651HA
  • Parts Town # CALE533651HA
  • Quantity0

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

Caleffi 533750HA Pressure Reducing Valve, Compact, Adjustable-Preset 45PSI, 3/4" Press PEX Crimp, 10GPM Max, PresCal

Caleffi
  • Mfr Part # 533750HA
  • Parts Town # CALE533750HA
  • Quantity0

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

Caleffi 533751HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" PEX CRIMP UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533751HA
  • Parts Town # CALE533751HA
  • Quantity0

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

Caleffi 533850HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" PEX EXP UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533850HA
  • Parts Town # CALE533850HA
  • Quantity0

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

Caleffi 533851HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" PEX EXP UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533851HA
  • Parts Town # CALE533851HA
  • Quantity0

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

Caleffi 533940HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" SWEAT UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533940HA
  • Parts Town # CALE533940HA
  • Quantity0

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

Caleffi 533941HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 1/2" SWEAT UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533941HA
  • Parts Town # CALE533941HA
  • Quantity0

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

Caleffi 533950HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" SWEAT UNION IN, FNPT OUT

Caleffi
  • Mfr Part # 533950HA
  • Parts Town # CALE533950HA
  • Quantity0

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

Caleffi 533951HA PRESSCAL™ COMPACT PRV ASSE 1003, SINGLE UNION 3/4" SWEAT UNION IN, FNPT OUT, GAUGE

Caleffi
  • Mfr Part # 533951HA
  • Parts Town # CALE533951HA
  • Quantity0

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

Caleffi 535004 REPLACEMENT CARTRIDGE X 5350-5351 1/2-3

Caleffi
  • Mfr Part # 535004
  • Parts Town # CALE535004
  • 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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