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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.

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

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

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Part Category

  • Actuators(1)
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  • Gaskets & Seals(1)
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  • Nuts, Bolts & Screws(36)
  • Panels, Covers & Lids(2)
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  • Pumps & Motors(5)
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  • 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

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

Caleffi 549597A SEP 4 4-IN-1 UNION 1 1/4 SWEAT

Caleffi
  • Mfr Part # 549597A
  • Parts Town # CALE549597A
  • Quantity0

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

Caleffi 549598A SEP 4 4-IN-1 UNION 1 1/2 SWEAT

Caleffi
  • Mfr Part # 549598A
  • Parts Town # CALE549598A
  • Quantity0

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

Caleffi 549599A SEP 4 4-IN-1 UNION 2 SWEAT

Caleffi
  • Mfr Part # 549599A
  • Parts Town # CALE549599A
  • Quantity0

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

Caleffi 551003A DISCAL AIR SEPARATOR 3/4 NPT COMPACT

Caleffi
  • Mfr Part # 551003A
  • Parts Town # CALE551003A
  • Quantity0

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

Caleffi 551003AC DISCAL® AIR SEPARATOR 3/4" NPT COMPACT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551003AC
  • Parts Town # CALE551003AC
  • Quantity0

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

Caleffi 551004A DISCALAIR™ HIGH DISCHARGE AUTOMATIC AIR VENT 1/2" NPT FEMALE

Caleffi
  • Mfr Part # 551004A
  • Parts Town # CALE551004A
  • Quantity0

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

Caleffi 551005A DISCAL AIR SEPARATOR 3/4 NPT

Caleffi
  • Mfr Part # 551005A
  • Parts Town # CALE551005A
  • Quantity0

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

Caleffi 551005AC DISCAL® AIR SEPARATOR 3/4" NPT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551005AC
  • Parts Town # CALE551005AC
  • Quantity0

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

Caleffi 551006A DISCAL AIR SEPARATOR 1 NPT

Caleffi
  • Mfr Part # 551006A
  • Parts Town # CALE551006A
  • Quantity0

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

Caleffi 551006AC DISCAL® AIR SEPARATOR 1" NPT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551006AC
  • Parts Town # CALE551006AC
  • Quantity0

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

Caleffi 551007AC DISCAL® AIR SEPARATOR 1 1/4"" NPT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551007AC
  • Parts Town # CALE551007AC
  • Quantity0

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

Caleffi 551008A DISCAL AIR SEPARATOR 1 1/2 NPT

Caleffi
  • Mfr Part # 551008A
  • Parts Town # CALE551008A
  • Quantity0

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

Caleffi 551008AC DISCAL® AIR SEPARATOR 1 1/2" NPT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551008AC
  • Parts Town # CALE551008AC
  • Quantity0

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

Caleffi 551009A DISCAL AIR SEPARATOR 2 NPT

Caleffi
  • Mfr Part # 551009A
  • Parts Town # CALE551009A
  • Quantity0

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

Caleffi 551009AC DISCAL® AIR SEPARATOR 2" NPT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551009AC
  • Parts Town # CALE551009AC
  • Quantity0

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

Caleffi 551022A DISCAL AIR SEPARATOR 3/4 SWEAT COMPACT

Caleffi
  • Mfr Part # 551022A
  • Parts Town # CALE551022A
  • Quantity0

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

Caleffi 551022AC DISCAL® AIR SEPARATOR 3/4" SWEAT COMPACT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551022AC
  • Parts Town # CALE551022AC
  • Quantity0

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

Caleffi 551028AC DISCAL® AIR SEPARATOR 1" SWEAT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551028AC
  • Parts Town # CALE551028AC
  • Quantity0

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

Caleffi 551035AC DISCAL® AIR SEPARATOR 1 1/4"" SWEAT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551035AC
  • Parts Town # CALE551035AC
  • Quantity0

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

Caleffi 551041A DISCAL AIR SEPARATOR 1 1/2 SWEAT

Caleffi
  • Mfr Part # 551041A
  • Parts Town # CALE551041A
  • Quantity0

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

Caleffi 551041AC DISCAL® AIR SEPARATOR 1 1/2" SWEAT W/ EXPANSION TANK CHECK

Caleffi
  • Mfr Part # 551041AC
  • Parts Town # CALE551041AC
  • Quantity0

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

Caleffi 551050A DISCAL AIR SEPARATOR 2 FLANGE

Caleffi
  • Mfr Part # 551050A
  • Parts Town # CALE551050A
  • Quantity0

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

Caleffi 551050AT DISCAL AIR SEPARATOR 2 MNPT

Caleffi
  • Mfr Part # 551050AT
  • Parts Town # CALE551050AT
  • Quantity0

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

Caleffi 551054A DISCAL AIR SEPARATOR 2 SWEAT

Caleffi
  • Mfr Part # 551054A
  • Parts Town # CALE551054A
  • 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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