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Caleffi

Founded in 1956 in Italy, Caleffi is a global leader in hydronic heating, plumbing, and air conditioning components. From thermostatic mixing valves and pressure reducing valves to air separators and zone valves, Caleffi engineers for precision, efficiency, and reliability.
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1805 products

Brass 3-way bypass valve body with cream-colored actuator head and black electrical connector wire.

Caleffi NA644300 3BY 3-Way bypass body w/24V act., no fittings

SKU #: CALENA6443003BY   |   MPN #: NA644300 3BY
$275.58
$275.58 $0.00
MSRP: $365

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass 3/4" NPT male threaded tail piece with cylindrical body and tapered threads.

Caleffi 31901A 3/4" NPT Male Tail Piece

SKU #: CALE31901A   |   MPN #: 31901A
$20.96
$20.96 $0.00
MSRP: $20.96

Special Order. Expect 4-6 weeks for delivery, subject to change

White manual knob for radiator valve with chrome metal base and top ring.

Caleffi 449010 MANUAL KNOB FOR RADIATOR VALVES

SKU #: CALE449010   |   MPN #: 449010
$18.79
$18.79 $0.00
MSRP: $18.79

Special Order. Expect 4-6 weeks for delivery, subject to change

White plastic universal wall-covering plate with dual circular openings and radial slot patterns for pipe penetrations.

Caleffi 449740 Universal Wall-Covering Plate 40-50MM

SKU #: CALE449740   |   MPN #: 449740
$11.42
$11.42 $0.00
MSRP: $11.42

Special Order. Expect 4-6 weeks for delivery, subject to change

White ribbed plastic cap with brass threaded base and blue center disc.

Caleffi 508100A Replacement Hygroscopic Cartridge

SKU #: CALE508100A   |   MPN #: 508100A
$13.23
$13.23 $0.00
MSRP: $13.23

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass valve body with black dial knob and black component housing, threaded connectors on top and bottom.

Caleffi 132637 QS+ replacement body 0.5 to 1.75 GPM

SKU #: CALE132637   |   MPN #: 132637
$201.04
$201.04 $0.00
MSRP: $248

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass valve body with analog pressure gauge, black adjustment knob, and copper connection ports on white background.

Caleffi 132657 QS+ replacement body 2.0 to 7.0 GPM

SKU #: CALE132657   |   MPN #: 132657
$211.56
$211.56 $0.00
MSRP: $262

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi NA16265LC 3/4" Press adapter w/1" union nut, check

SKU #: CALENA16265LC   |   MPN #: NA16265LC
$57.56
$57.56 $0.00
MSRP: $66.60

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi NA11307 PRV Spool, 535H (1-1/4") Series

SKU #: CALENA11307   |   MPN #: NA11307
$24.51
$24.51 $0.00
MSRP: $24.51

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi F0000580 Replacement therm. dis. cartridge

SKU #: CALEF0000580   |   MPN #: F0000580
$54.40
$54.40 $0.00
MSRP: $62.40

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass valve assembly with black cylindrical base, multiple inlet ports, and adjustment actuators on top.

Caleffi 59472 Valve seat for 574050A

SKU #: CALE59472   |   MPN #: 59472
$44.06
$44.06 $0.00
MSRP: $51.20

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass valve body with copper ports and air vent fitting, Caleffi brand.

Caleffi 551716 body only, order unions separately

SKU #: CALE551716   |   MPN #: 551716
$203.35
$203.35 $0.00
MSRP: $297

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi brand logo in green text on white background.

Caleffi F19346 132 Series Replacement Stem

SKU #: CALEF19346   |   MPN #: F19346
$45.39
$45.39 $0.00
MSRP: $50.40

Special Order. Expect 4-6 weeks for delivery, subject to change

Two brass port connectors with knurled caps and red and green lever handles.

Caleffi 100001A Port Set 1/4 Inch NPT Brass

SKU #: CALE100001A   |   MPN #: 100001A
$21.87
$21.87 $0.00
MSRP: $21.87

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi temperature gauge with 1-1/2 inch dial displaying 0-80 degrees Celsius scale and threaded stem connection.

Caleffi 116010 Repl. temp gauge, 1-1/2" dial, 30-180F

SKU #: CALE116010   |   MPN #: 116010
$20.89
$20.89 $0.00
MSRP: $20.89

Special Order. Expect 4-6 weeks for delivery, subject to change

Black foam insulation shell with cylindrical shape and central opening for pipe fitting.

Caleffi 112001 Insulation Shell for 132552A

SKU #: CALE112001   |   MPN #: 112001
$44.79
$44.79 $0.00
MSRP: $49.60

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass cartridge actuator with white cap, metal stem, and black seal ring for replacement in valve assembly.

Caleffi 116000 Replacement actuator dis. cartridge

SKU #: CALE116000   |   MPN #: 116000
$68.00
$68.00 $0.00
MSRP: $80.50

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass cylindrical air separator with side inlet/outlet ports, top vent valve, and DISCAL CALEFFI label.

Caleffi 551054A DISCAL Air Separator 2" Sweat

SKU #: CALE551054A   |   MPN #: 551054A
$319.82
$319.82 $0.00
MSRP: $488

Available in stock

Brass air vent valve with hygroscopic cap, 1/2" NPT connection, vertical orientation.

Caleffi NA502640A PLUMBVENT 1/2" NPT Low Lead Air Vent with Hygroscopic Cap

SKU #: CALENA502640A   |   MPN #: NA502640A
$46.99
$46.99 $0.00
MSRP: $60.40

Available in stock

Brass check valve with sweat connections, gray internal mechanism visible through center chamber with black sealing rings.

Caleffi NA51369 Serviceable low lead Check Valve 1" sweat

SKU #: CALENA51369   |   MPN #: NA51369
$105.34
$105.34 $0.00
MSRP: $123

Available in stock

Caleffi FAQ

What is Caleffi?

Caleffi is a manufacturer of hydronic heating and plumbing components, known for high-quality valves, fittings, and system solutions designed for efficiency and reliability.

What products does Caleffi offer?

Caleffi offers mixing valves, pressure reducing valves (PRVs), pressure relief valves, air separators, zone valves, and hydronic system controls for plumbing and HVAC applications.

What is a Caleffi mixing valve used for?

Caleffi mixing valves, including thermostatic and temperature mixing valves, regulate water temperature to improve safety, comfort, and system efficiency.

What does a Caleffi pressure reducing valve do?

A Caleffi pressure reducing valve (PRV) controls incoming water pressure, protecting plumbing systems and fixtures from damage caused by high pressure.

What is a Caleffi air separator?

Caleffi air separators remove air from hydronic heating systems, improving efficiency, reducing noise, and preventing system damage.

Are Caleffi products high quality?

Caleffi products are made from premium materials and engineered for durability, offering long-lasting performance in demanding hydronic and plumbing systems.

Where are Caleffi products made?

Caleffi was founded in Italy and operates globally, with manufacturing and distribution supporting markets including Caleffi North America.

Can Caleffi products be used in residential and commercial systems?

Yes, Caleffi components are designed for residential, commercial, and industrial hydronic systems, ensuring consistent performance across applications.

Do Caleffi products help improve energy efficiency?

By regulating temperature, pressure, and air removal, Caleffi valves and components help hydronic systems operate more efficiently and reduce energy waste.

Why choose Caleffi for hydronic systems?

Caleffi stands out for precision engineering, reliable performance, and a complete range of hydronic solutions that support safe, efficient plumbing and heating systems.
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