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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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  • 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 39623 DISCHARGE AIR GAP FOR 574

Caleffi
  • Mfr Part # 39623
  • Parts Town # CALE39623
  • Quantity0

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

Caleffi 41371A 1-1/2 MNPT FOR 5231 SERIES

Caleffi
  • Mfr Part # 41371A
  • Parts Town # CALE41371A
  • Quantity0

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

Caleffi 41372A 2 MNPT FITTING FOR 5231 SERIES

Caleffi
  • Mfr Part # 41372A
  • Parts Town # CALE41372A
  • Quantity0

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

Caleffi 41380A FITTING 1/2 SWT FOR 573

Caleffi
  • Mfr Part # 41380A
  • Parts Town # CALE41380A
  • Quantity0

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

Caleffi 41787CST 1-1/4 SWT LOW LEAD TAIL PIECE

Caleffi
  • Mfr Part # 41787CST
  • Parts Town # CALE41787CST
  • Quantity0

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

Caleffi 41788CST 1-1/2 SWT LOW LEAD TAIL PIECE

Caleffi
  • Mfr Part # 41788CST
  • Parts Town # CALE41788CST
  • Quantity0

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

Caleffi 41789CST 2 SWT LOW LEAD TAIL PIECE

Caleffi
  • Mfr Part # 41789CST
  • Parts Town # CALE41789CST
  • Quantity0

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

Caleffi 41882A FITTING 1-1/2 SWT FOR 548098A

Caleffi
  • Mfr Part # 41882A
  • Parts Town # CALE41882A
  • Quantity0

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

Caleffi 437516 1/2 COMPRESSION FITTING

Caleffi
  • Mfr Part # 437516
  • Parts Town # CALE437516
  • Quantity0

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

Caleffi 449000 WHITE HANDLE FOR 668 MANIFOLDS

Caleffi
  • Mfr Part # 449000
  • Parts Town # CALE449000
  • Quantity0

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

Caleffi 449010 MANUAL KNOB FOR RADIATOR VALVES

Caleffi
  • Mfr Part # 449010
  • Parts Town # CALE449010
  • Quantity0

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

Caleffi 449740 UNIVERSAL WALL-COVERING PLATE 40-50MM

Caleffi
  • Mfr Part # 449740
  • Parts Town # CALE449740
  • Quantity0

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

Caleffi 472000 THERMO CONTROL HEAD W/REMOTEADJ KNOB

Caleffi
  • Mfr Part # 472000
  • Parts Town # CALE472000
  • Quantity0

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

Caleffi 49684A MAGNET/DRYWELL (4") FOR 3" TO 6" SEP4 AND 2", 2-1/2" DIRTMAG

Caleffi
  • Mfr Part # 49684A
  • Parts Town # CALE49684A
  • Quantity0

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

Caleffi 49685A MAGNET/DRYWELL ASSY, 13-3/4", FOR 3" TO 6" DIRTMAG, DISCALDIRTMAG

Caleffi
  • Mfr Part # 49685A
  • Parts Town # CALE49685A
  • Quantity0

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

Caleffi 501502A Air Vent, Automatic, 3/4" Inside NPT, MAXCAL

Caleffi
  • Mfr Part # 501502A
  • Parts Town # CALE501502A
  • Quantity0

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

Caleffi 502043CST MINICAL® AUTOMATIC AIR VENT 1/2" STRAIGHT THREAD MALE

Caleffi
  • Mfr Part # 502043CST
  • Parts Town # CALE502043CST
  • Quantity0

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

Caleffi 502113A MINICAL® 1/8" WITH CHECK, HYGROSCOPIC CAP

Caleffi
  • Mfr Part # 502113A
  • Parts Town # CALE502113A
  • Quantity0

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

Caleffi 502420 ROBOCAL AUTOMATIC AIR VENT 1/4 METRIC

Caleffi
  • Mfr Part # 502420
  • Parts Town # CALE502420
  • Quantity0

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

Caleffi 502630 ROBOCAL AUTOMATIC AIR VENT 3/8 METRIC

Caleffi
  • Mfr Part # 502630
  • Parts Town # CALE502630
  • Quantity0

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

Caleffi 502640 ROBOCAL AUTOMATIC AIR VENT 1/2 METRIC

Caleffi
  • Mfr Part # 502640
  • Parts Town # CALE502640
  • Quantity0

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

Caleffi 502720A ROBOCAL™ AUTOMATIC AIR VENT 1/4" WITH CHECK

Caleffi
  • Mfr Part # 502720A
  • Parts Town # CALE502720A
  • Quantity0

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

Caleffi 508100A REPLACEMENT HYGROSCOPIC CARTRIDGE

Caleffi
  • Mfr Part # 508100A
  • Parts Town # CALE508100A
  • Quantity0

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

Caleffi 519006 DIFFERENTIAL BYPASS VALVE 1 0.23 MH2O

Caleffi
  • Mfr Part # 519006
  • Parts Town # CALE519006
  • 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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