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Boiler Valves

Welcome to Plumbing Deals, the leading provider of boiler valves and rough-in plumbing parts for residential customers! Our commitment to providing top name brands at affordable prices has earned us a reputation as one of the most reliable suppliers in the industry.
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39 products

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

Brass drain cock with white plastic cap and black grip ring, 1/4" NPT connection.

Caleffi 337221A 1/4" NPT Drain Cock w/Metal Seal

SKU #: CALE337221A   |   MPN #: 337221A
$15.67
$15.67 $0.00
MSRP: $15.67

Available in stock

Brass 3-way mixing valve with 3/4" ports and temperature probe attachment.

Caleffi 520519A AngleMix 3- Way Mixing valve 3/4" SWTw/probe

SKU #: CALE520519A   |   MPN #: 520519A
$224.45
$224.45 $0.00
MSRP: $291

Available in stock

Brass 3-way mixing valve with black adjustment knob and attached temperature gauge showing MIN-MAX settings.

Caleffi 521516A MixCal 3-way Mixing Valve 3/4" Press w/ Temp Gauge

SKU #: CALE521516A   |   MPN #: 521516A
$233.72
$233.72 $0.00
MSRP: $304

Available in stock

Brass 3-way mixing valve with black adjustment knob, copper press fittings on inlet and outlet ports, labeled MIN and MAX.

Caleffi 521506A MixCal 3-way Mixing Valve 3/4" Press

SKU #: CALE521506A   |   MPN #: 521506A
$200.18
$200.18 $0.00
MSRP: $259

Available in stock

Brass air separator with blue DISCAL CALEFFI label, side ports, and threaded top connection fitting.

Caleffi 551007AC DISCAL Air Separator 1 1/4"" NPT w/ Expansion Tank Check

SKU #: CALE551007AC   |   MPN #: 551007AC
$222.38
$222.38 $0.00
MSRP: $329

Available in stock

Brass DirtMagPRO separator with copper press connections, blue Caleffi label, black base band, red ball valve, and drain port

Caleffi 546366AM DirtMagPRO 1" press

SKU #: CALE546366AM   |   MPN #: 546366AM
$227.50
$227.50 $0.00
MSRP: $306

Available in stock

Brass water filter with blue Caleffi label, black band, yellow warning symbol, and red shutoff valve at bottom.

Caleffi 546341AM DirtMagPRO 1-1/2" sweat

SKU #: CALE546341AM   |   MPN #: 546341AM
$365.10
$365.10 $0.00
MSRP: $508

Available in stock

Brass automatic air vent with magnetic dirt separator, 1-1/4 inch sweat connection fitting.

Caleffi 546335AM DirtMagPRO 1-1/4" sweat

SKU #: CALE546335AM   |   MPN #: 546335AM
$283.11
$283.11 $0.00
MSRP: $390

Available in stock

Brass low lead check valve with 3/4" sweat connections and white manufacturer label.

Caleffi NA51259 Serviceable low lead check 3/4" sweat

SKU #: CALENA51259   |   MPN #: NA51259
$75.95
$75.95 $0.00
MSRP: $86.70

Available in stock

Brass pressure relief valve with white and black regulator body, attached pressure gauge, and 3/4" sweat connections.

Caleffi 535951HA PressCal PRV ASSE 1003, 3/4" Sweat w/ Pressure Gauge

SKU #: CALE535951HA   |   MPN #: 535951HA
$129.47
$129.47 $0.00
MSRP: $161

Available in stock

Brass 3-way mixing valve with dial thermometer gauge and black actuator knob.

Caleffi 520516A AngleMix 3- Way Mixing valve 3/4" Press Temp Probe

SKU #: CALE520516A   |   MPN #: 520516A
$233.72
$233.72 $0.00
MSRP: $304

Available in stock

Brass elbow lockshield valve with gray cap and detached fitting connector showing male threads on both ends.

Caleffi 342452 Elbow Lockshield 1/2"M x 3/4"M

SKU #: CALE342452   |   MPN #: 342452
$43.85
$43.85 $0.00
MSRP: $48.30

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

Brass straight lockshield valve with white cap, 1/2" and 3/4" connections, and adjustment nut.

Caleffi 343452 Straight Lockshield 1/2" X 3/4"

SKU #: CALE343452   |   MPN #: 343452
$45.94
$45.94 $0.00
MSRP: $50.70

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

Caleffi solar air vent with 1/2" NPT threaded connections, cylindrical metal body with ridged cap and vent valve on top.

Caleffi 251004A High Capacity Solar Air Vent 1/2" NPT

SKU #: CALE251004A   |   MPN #: 251004A
$138.13
$138.13 $0.00
MSRP: $168

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

Two brass automatic air vents with 1/8" NPT male threads and black top valves.

Caleffi 502015A MINICAL Automatic Air Vent 1/8" NPT Male - 2 Pack

SKU #: CALE502015Ax2   |   MPN #: 502015A
$36.44
$36.44 $0.00
MSRP: $42

Available in stock

Five brass automatic air vents with black release valves and knurled grip surfaces.

Caleffi 502015A MINICAL Automatic Air Vent 1/8" NPT Male - 5 Pack

SKU #: CALE502015Ax5   |   MPN #: 502015A
$81.54
$81.54 $0.00
MSRP: $105

Available in stock

Expertise and Affordable Prices

Our industry experts have the knowledge and experience to provide boiler valves and rough-in plumbing parts that meet your individual needs. Whether you are looking for a residential or commercial system, our team is committed to helping you find the perfect solution. From traditional copper pipes to advanced manifold systems, we offer a wide range of products designed to fit any budget and situation.

Our goal is to provide the best possible customer experience, from knowledgeable advice to timely delivery – everything you need to get your project done quickly and professionally. We proudly carry top name brands like Caleffi, Danfoss, Watts, Zilmet, and more.

Our team of expert technicians is on hand for consultation and support, so don't hesitate to reach out if you have any questions or concerns about our products. We take great pride in the quality of our work and strive to exceed your expectations with every order. Thank you for choosing Plumbing Deals for all your residential boiler needs. Shop with us today and experience the difference!
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