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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 280176A ANTICONDENSING VALVE 1-1/4 NPT 140 F

Caleffi
  • Mfr Part # 280176A
  • Parts Town # CALE280176A
  • Quantity0

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

Caleffi 280965A ANTICONDENSING VALVE 1 SWT 130 F

Caleffi
  • Mfr Part # 280965A
  • Parts Town # CALE280965A
  • Quantity0

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

Caleffi 280966A ANTICONDENSING VALVE 1 SWT 140 F

Caleffi
  • Mfr Part # 280966A
  • Parts Town # CALE280966A
  • Quantity0

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

Caleffi 280975A ANTICONDENSING VALVE 1-1/4 SWT 130 F

Caleffi
  • Mfr Part # 280975A
  • Parts Town # CALE280975A
  • Quantity0

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

Caleffi 280976A ANTICONDENSING VALVE 1-1/4 SWT 140 F

Caleffi
  • Mfr Part # 280976A
  • Parts Town # CALE280976A
  • Quantity0

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

Caleffi 290030 ISOLATION BALL VALVE 1 MXF UNION

Caleffi
  • Mfr Part # 290030
  • Parts Town # CALE290030
  • Quantity0

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

Caleffi 290031 ISOLATION VALVE W/INTEGRAL STEM EXTENSION

Caleffi
  • Mfr Part # 290031
  • Parts Town # CALE290031
  • Quantity0

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

Caleffi 290503A TANKLESS WATER HEATER SERVICE KIT 3/4" FNPT W/O PRV

Caleffi
  • Mfr Part # 290503A
  • Parts Town # CALE290503A
  • Quantity0

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

Caleffi 290504A TANKLESS WATER HEATER SERVICE KIT 3/4" FNPT W/O PRV EQUAL LENGTH

Caleffi
  • Mfr Part # 290504A
  • Parts Town # CALE290504A
  • Quantity0

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

Caleffi 301040 STRAIGHT TWO-PIPE VALVE 1/2M

Caleffi
  • Mfr Part # 301040
  • Parts Town # CALE301040
  • Quantity0

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

Caleffi 301140 ANGLED TWO-PIPE VALVE 1/2M

Caleffi
  • Mfr Part # 301140
  • Parts Town # CALE301140
  • Quantity0

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

Caleffi 301241 STRAIGHT VALVE 1-PIPE SYSTEM 1/2M

Caleffi
  • Mfr Part # 301241
  • Parts Town # CALE301241
  • Quantity0

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

Caleffi 301341 ANGLED ONE-PIPE VALVE SYSTEM1/2M X 3/4

Caleffi
  • Mfr Part # 301341
  • Parts Town # CALE301341
  • Quantity0

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

Caleffi 304740A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" MNPT

Caleffi
  • Mfr Part # 304740A
  • Parts Town # CALE304740A
  • Quantity0

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

Caleffi 304743A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" FNPT

Caleffi
  • Mfr Part # 304743A
  • Parts Town # CALE304743A
  • Quantity0

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

Caleffi 304746A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" PRESS

Caleffi
  • Mfr Part # 304746A
  • Parts Town # CALE304746A
  • Quantity0

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

Caleffi 304747A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" PEX CRIMP

Caleffi
  • Mfr Part # 304747A
  • Parts Town # CALE304747A
  • Quantity0

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

Caleffi 304748A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" PEX EXPANSION

Caleffi
  • Mfr Part # 304748A
  • Parts Town # CALE304748A
  • Quantity0

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

Caleffi 304749A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ½" SWEAT

Caleffi
  • Mfr Part # 304749A
  • Parts Town # CALE304749A
  • Quantity0

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

Caleffi 304750A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ¾" MNPT

Caleffi
  • Mfr Part # 304750A
  • Parts Town # CALE304750A
  • Quantity0

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

Caleffi 304753A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ¾" FNPT

Caleffi
  • Mfr Part # 304753A
  • Parts Town # CALE304753A
  • Quantity0

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

Caleffi 304756A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ¾" PRESS

Caleffi
  • Mfr Part # 304756A
  • Parts Town # CALE304756A
  • Quantity0

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

Caleffi 304757A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ¾" PEX CRIMP

Caleffi
  • Mfr Part # 304757A
  • Parts Town # CALE304757A
  • Quantity0

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

Caleffi 304758A DUAL UNION LOW LEADSERVICEABLE CHECK VALVE ¾" PEX EXPANSION

Caleffi
  • Mfr Part # 304758A
  • Parts Town # CALE304758A
  • 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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