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Refined By

Brand
Caleffi

Model

loading spinner

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)
  • 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

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.

...

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Caleffi 145559A1G8 FLOWMATIC® PICV DUAL UNION 3/4" SWT, 1.8 GPM

Caleffi
  • Mfr Part # 145559A1G8
  • Parts Town # CALE145559A1G8
  • Quantity0

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

Caleffi 145559A3G5 FLOWMATIC® PICV DUAL UNION 3/4" SWT, 3.5 GPM

Caleffi
  • Mfr Part # 145559A3G5
  • Parts Town # CALE145559A3G5
  • Quantity0

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

Caleffi 145559A5G3 FLOWMATIC® PICV DUAL UNION 3/4" SWT, 5.3 GPM

Caleffi
  • Mfr Part # 145559A5G3
  • Parts Town # CALE145559A5G3
  • Quantity0

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

Caleffi 145559AG90 FLOWMATIC® PICV DUAL UNION 3/4" SWT, 0.9 GPM

Caleffi
  • Mfr Part # 145559AG90
  • Parts Town # CALE145559AG90
  • Quantity0

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

Caleffi 145663A13G FLOWMATIC® PICV DUAL UNION 1" FNPT, 13 GPM

Caleffi
  • Mfr Part # 145663A13G
  • Parts Town # CALE145663A13G
  • Quantity0

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

Caleffi 145663A16G FLOWMATIC® PICV DUAL UNION 1" FNPT, 16 GPM

Caleffi
  • Mfr Part # 145663A16G
  • Parts Town # CALE145663A16G
  • Quantity0

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

Caleffi 145663A7G9 FLOWMATIC® PICV DUAL UNION 1" FNPT, 7.9 GPM

Caleffi
  • Mfr Part # 145663A7G9
  • Parts Town # CALE145663A7G9
  • Quantity0

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

Caleffi 145666A13G FLOWMATIC® PICV DUAL UNION 1" PRESS, 13 GPM

Caleffi
  • Mfr Part # 145666A13G
  • Parts Town # CALE145666A13G
  • Quantity0

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

Caleffi 145666A16G FLOWMATIC® PICV DUAL UNION 1" PRESS, 16 GPM

Caleffi
  • Mfr Part # 145666A16G
  • Parts Town # CALE145666A16G
  • Quantity0

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

Caleffi 145666A7G9 FLOWMATIC® PICV DUAL UNION 1" PRESS, 7.9 GPM

Caleffi
  • Mfr Part # 145666A7G9
  • Parts Town # CALE145666A7G9
  • Quantity0

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

Caleffi 145669A13G FLOWMATIC® PICV DUAL UNION 1" SWT, 13 GPM

Caleffi
  • Mfr Part # 145669A13G
  • Parts Town # CALE145669A13G
  • Quantity0

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

Caleffi 145669A16G FLOWMATIC® PICV DUAL UNION 1" SWT, 16 GPM

Caleffi
  • Mfr Part # 145669A16G
  • Parts Town # CALE145669A16G
  • Quantity0

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

Caleffi 145669A7G9 FLOWMATIC® PICV DUAL UNION 1" SWT, 7.9 GPM

Caleffi
  • Mfr Part # 145669A7G9
  • Parts Town # CALE145669A7G9
  • Quantity0

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

Caleffi 149400A1G8 FLOWMATIC® EXPRESS COIL KIT 1/2" NPT, 0.9 TO 1.8 GPM

Caleffi
  • Mfr Part # 149400A1G8
  • Parts Town # CALE149400A1G8
  • Quantity0

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

Caleffi 149400A3G5 FLOWMATIC® EXPRESS COIL KIT 1/2" NPT, 1.8 TO 3.5 GPM

Caleffi
  • Mfr Part # 149400A3G5
  • Parts Town # CALE149400A3G5
  • Quantity0

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

Caleffi 149400AG40 FLOWMATIC® EXPRESS COIL KIT 1/2" NPT, 0.1 TO .4 GPM

Caleffi
  • Mfr Part # 149400AG40
  • Parts Town # CALE149400AG40
  • Quantity0

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

Caleffi 149400AG90 FLOWMATIC® EXPRESS COIL KIT 1/2" NPT, .4 TO .9 GPM

Caleffi
  • Mfr Part # 149400AG90
  • Parts Town # CALE149400AG90
  • Quantity0

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

Caleffi 149500A1G8 FLOWMATIC® EXPRESS COIL KIT 3/4" NPT, 0.9 TO 1.8 GPM

Caleffi
  • Mfr Part # 149500A1G8
  • Parts Town # CALE149500A1G8
  • Quantity0

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

Caleffi 149500A3G5 FLOWMATIC® EXPRESS COIL KIT 3/4" NPT, 1.8 TO 3.5 GPM

Caleffi
  • Mfr Part # 149500A3G5
  • Parts Town # CALE149500A3G5
  • Quantity0

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

Caleffi 149500A5G3 FLOWMATIC® EXPRESS COIL KIT 3/4" NPT, 3.5 TO 5.3 GPM

Caleffi
  • Mfr Part # 149500A5G3
  • Parts Town # CALE149500A5G3
  • Quantity0

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

Caleffi 149500AG90 FLOWMATIC® EXPRESS COIL KIT 3/4" NPT, 0.4 TO 0.9 GPM

Caleffi
  • Mfr Part # 149500AG90
  • Parts Town # CALE149500AG90
  • Quantity0

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

Caleffi 149600A13G FLOWMATIC® EXPRESS COIL KIT 1" NPT, 7.9 TO 13 GPM

Caleffi
  • Mfr Part # 149600A13G
  • Parts Town # CALE149600A13G
  • Quantity0

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

Caleffi 149600A16G FLOWMATIC® EXPRESS COIL KIT 1" NPT, 7.9 TO 16 GPM

Caleffi
  • Mfr Part # 149600A16G
  • Parts Town # CALE149600A16G
  • Quantity0

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

Caleffi 149600A7G9 1 FNPT 5.30 - 7.90 GPM

Caleffi
  • Mfr Part # 149600A7G9
  • Parts Town # CALE149600A7G9
  • 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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