Expansion Tanks
We stock expansion tanks from Bell & Gossett, Armstrong, Taco HVAC, Wessels and more. Expansion Tanks are available with either bladders or diaphragms so that water and air are permanently separated. No absorption can take place at any point during the system cycle, and you avoid the problems of waterlogged tanks, air-bound terminal units, excessive corrosion, inefficient balancing and pump cavitations. Plain steel tanks are also available. Please give us a call and we can help you find the right expansion tank for your needs.
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2220130 Wessels Series NLA-130 Expansion Tank Bladder Only
Wessels
$1,357.952220130 Wessels Series NLA-130 Expansion Tank Bladder Only. Wessels bladder expansion tanks are required in a closed loop heating or chilled water HVAC system to absorb the expanding fluid and limit the pressure within a heating or cooling system. A...$1,357.95 -
AX-60V Armstrong Pre-charged ASME Expansion Tank
Armstrong
$3,127.00AX-60V Armstrong Pre-charged ASME Expansion Tank. Tank Volume 35.0 gal, (132.5 L). *Please note image is generic. Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard...$3,127.00 -
CX84-125 Taco 23 Gal Diaphragm Expansion Tank
Taco
$2,358.95CX84-125 Taco Diaphragm 23 Gal Expansion Tank. Tank Volume: 23 Gal, 84 Lit. Taco Series CX Expansion Tanks. Most Taco Expansion Tanks are available with either bladders or diaphragms so that water and air are permanently separated. The Taco...$2,358.95 -
CX30-125 Taco 8 Gal Diaphragm Expansion Tank
Taco
$1,928.95CX30-125 Taco Diaphragm 8 Gal Expansion Tank. Tank Volume: 8 Gal, 30 Lit. Taco Series CX Expansion Tanks. Most Taco Expansion Tanks are available with either bladders or diaphragms so that water and air are permanently separated. The Taco...$1,928.95 -
CBX30-125 Taco CBX Vertical Bladder Expansion Tank 8 Gal
Taco
$2,759.95CBX30-125 Taco CBX Vertical Bladder Expansion Tank 8 Gal. Tank Volume, Gal: 8, Liter: 30. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for use...$2,759.95 -
PTA-42V Bell & Gossett 1BN350LF ASME Potable Expansion Tank
Bell & Gossett
$2,910.95PTA-42V Bell & Gossett 1BN350LF ASME Potable Expansion Tank. The Bell & Gossett Series PTA expansion tank is an ASME constructed vessel designed to absorb the forces of expanding water and protect the domestic water system from...$2,910.95 -
BB-18 Boiler Buddy Buffer Tank 18 Gallon
Boiler Buddy
$1,758.95BB-18 Boiler Buddy Buffer Tank 18 Gallon. The Boiler Buddy is designed to be used in heating systems with low-mass boilers, geothermal, chilled water applications, or low-mass radiation. Boilers operating at low loads will short cycle which leads to...$1,758.95 -
572005-101 Armstrong AX-80V Pre-charged ASME Expansion Tank
Armstrong
$3,548.00AX-80V Armstrong 572005-101 Pre-charged ASME Expansion Tank. Tank Volume 45.0 gal, (170.3 L). *Please note image is generic. Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80%...$3,548.00 -
113235 Bell & Gossett TPV-1FF Tank Purge Valve
Bell & Gossett
$108.95113235 Bell & Gossett TPV-1FF Tank Purge Valve. System Connection: 1" Female NPT - Tank Connection: 1" Female NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to connect the...$108.95 -
572018-007 Armstrong Diaphragm Expansion Tank SX-60V
Armstrong
$742.95572018-007 Armstrong Diaphragm Expansion Tank SX-60V. Tank Volume 39.7 gal, (150L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$742.95 -
572018-003 Armstrong Diaphragm Expansion Tank 60
Armstrong
$561.95572018-003 Armstrong Diaphragm Expansion Tank 60 Tank Volume 6.3 gal, (24L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$561.95 -
572005-099 Armstrong AX-40V Pre-charged ASME Expansion Tank
Armstrong
$2,871.00572005-099 Armstrong AX-40V Pre-charged ASME Expansion Tank . Tank Volume 25.0 gal, (94.6 L). *Please note image is generic. Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by...$2,871.00 -
220001 Bell & Gossett Sight Glass Assembly
Bell & Gossett
$124.95220001 Bell & Gossett Sight Glass Assembly, 2 gauge cocks, glass tube 12" & guard rods. This Item Usually Ships The Same Day!$124.95 -
573100-008 Armstrong A400-L Expansion Tank
Armstrong
$6,448.95573100-008 Armstrong A400-L Expansion Tank. Tank Volume Gal/L: 106(400). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use compressed air to...$6,448.95 -
112011 Bell & Gossett ATF-16 Airtrol Tank Fittings
Bell & Gossett
$352.95112011 Bell & Gossett ATF-16 Airtrol Tank Fittings. Connection Size: Tank - 1/2"M, Boiler - 3/4"F. Bell & Gossett Airtrol Tank Fittings help to establish proper initial liquid level in the compression tank when filling the hydronic system. They...$352.95 -
12NA33 Wessels Series NA Hydronic Expansion Tank 23012033
Wessels
$728.9512NA33 Wessels Series NA Hydronic Expansion Tank 23012033, 15 Gal. Wessels NA series are ASME plain carbon steel expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating/cooling systems. This tank is the...$728.95 -
PS030-125 Taco PS Expansion Tank 30 Gal
Taco
$1,279.95PS030-125 Taco PS Expansion Tank 30 Gal. Capacity (Gal) 30. Specifications: Manufactured in Accordance with ASME Section VIII. Maximum working pressure - 125 PSIG (optional 150 PSIG, -150 in Model No.). Maximum Operating Temperature - 375*F. Taco...$1,279.95 -
PAX84-150 Taco Bladder Expansion Tank
Taco
$3,537.95PAX84-150 Taco Bladder Expansion Tank. Acceptance Volume: 12 gal, 45 liter. Taco PAX Series bladder type tanks provide permanent separation of air and water. All wetted components are built of FDA-approved materials. Available in 11 models to meet...$3,537.95 -
1BN104LF Bell & Gossett WT-404 Domestic Well Tank
Bell & Gossett
1BN104LF Bell & Gossett WT-404 Domestic Well Tank. *Obsolete. Replaced by 1BN372LF WTA-404 ASME Domestic Well Tank. Bell & Gossett None-ASME Domestic Well Tanks. The Series WT expansion tank will help protect the pump and pressure switches...Qty in Cart: 0Quantity:Price:Subtotal: -
116052 Bell & Gossett Series B-300 ASME Pressurized Expansion Tank
Bell & Gossett
$5,464.00116052 Bell & Gossett Series B-300 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 80 Gallons (300) liters. Repair Parts: 189580 Bell & Gossett B-300 Expansion Tank Replacement Bladder Only Information: Bell...$5,464.00