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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112010 Bell & Gossett ATF-12 Airtrol Tank Fittings
Bell & Gossett
$167.95112010 Bell & Gossett ATF-12 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...$167.95 -
1BN327LF Bell & Gossett Expansion Tank HFT-30
Bell & Gossett
$114.951BN327LF Bell & Gossett Expansion Tank HFT-30. Bell & Gossett Non-ASME Expansion Tanks Series HFT Pre-Charged Diaphragm Technical Brochure Bell & Gossett Diaphragm Expansion Tanks ASME And Non-Code Instruction Manual Bell & Gossett...$114.95 -
1BN326 Bell & Gossett Expansion Tank HFT-15
Bell & Gossett
$68.951BN326 Bell & Gossett Expansion Tank HFT-15. The Series HFT tank is designed to absorb the force of thermal expansion of heating water and to maintain proper pressurization in a closed hydronic system. The heavy duty butyl diaphragm separates...$68.95 -
112013 Bell & Gossett ATF-24 Airtrol Tank Fittings
Bell & Gossett
$178.95112013 Bell & Gossett ATF-24 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...$178.95 -
1BN319LF Bell & Gossett PT-25V Expansion Tank
Bell & Gossett
$254.951BN319LF Bell & Gossett PT-25V Expansion Tank. The Series PT expansion tank is designed to absorb the forces of expanding water and protect a potable water system from pressure build up. The FDA approved heavy duty butyl diaphragm with...$254.95 -
572005-097 Armstrong AX-15V Pre-charged ASME Expansion Tank
Armstrong
$1,152.95AX-15V Armstrong Pre-charged ASME Expansion Tank 572005-097. Tank Volume 8.0 gal, (30.3 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% over...$1,152.95 -
1BN317LF Bell & Gossett PT-5 Expansion Tank
Bell & Gossett
$74.951BN317LF Bell & Gossett PT-5 Expansion Tank. The Series PT expansion tank is designed to absorb the forces of expanding water and protect a potable water system from pressure build up. The FDA approved heavy duty butyl diaphragm with...$74.95 -
1BN329 Bell & Gossett HFT-90 Expansion Tank
Bell & Gossett
$272.951BN329 Bell & Gossett HFT-90 Expansion Tank. Bell & Gossett Non-ASME Expansion Tanks Series HFT Pre-Charged Diaphragm Technical Brochure Bell & Gossett Diaphragm Expansion Tanks ASME And Non-Code Instruction Manual Bell & Gossett...$272.95 -
1BN318LF Bell & Gossett PT-12 Expansion Tank
Bell & Gossett
$103.951BN318LF Bell & Gossett PT-12 Expansion Tank. The Series PT expansion tank is designed to absorb the forces of expanding water and protect a potable water system from pressure build up. The FDA approved heavy duty butyl diaphragm with...$103.95 -
572018-002 Armstrong Diaphragm Expansion Tank 30
Armstrong
$204.95572018-002 Armstrong Diaphragm Expansion Tank 30 Tank Volume 4.8 gal, (18L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$204.95 -
CBX84-125 Taco CBX Vertical Bladder Expansion Tank 22 Gal
Taco
$3,561.95CBX84-125 Taco CBX Vertical Bladder Expansion Tank 22 Gal. Tank Volume, Gal: 22, Liter: 84. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for use...$3,561.95 -
116300 Bell & Gossett Series D-40 ASME Expansion Tank
Bell & Gossett
$2,163.95116300 Bell & Gossett Series D-40 ASME Expansion Tank. Tank Volume: 21.7 Gallons (82.1L). Series "D" (ASME) Pressurized Expansion Tank. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett Series...$2,163.95 -
116298 Bell & Gossett Series D-15 Expansion Tank
Bell & Gossett
$1,354.95116298 Bell & Gossett Series D-15 Expansion Tank. Tank Volume: 8 Gallons (30.3L). Series "D" (ASME) Pressurized Expansion Tanks Vertical. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett...$1,354.95 -
1BN328 Bell & Gossett HVAC Expansion Tank HFT-60
Bell & Gossett
$184.951BN328 Bell & Gossett HVAC Expansion Tank HFT-60. Information: Bell & Gossett Non-ASME Expansion Tanks Series HFT Pre-Charged Diaphragm Technical Brochure Bell & Gossett Diaphragm Expansion Tanks ASME And Non-Code Instruction...$184.95 -
PTA-60V Bell & Gossett 1BN351LF ASME Potable Expansion Tank
Bell & Gossett
$3,755.95PTA-60V Bell & Gossett 1BN351LF 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 pressure...$3,755.95 -
112026 Bell & Gossett ATF-20 Airtrol Tank Fittings
Bell & Gossett
$214.95112026 Bell & Gossett ATF-20 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...$214.95 -
113229 Bell & Gossett TPV-1/2FM Tank Purge Valve
Bell & Gossett
$82.50113229 Bell & Gossett TPV-1/2FM Tank Purge Valve. System Connection: 1/2" Female NPT - Tank Connection: 1/2" Male NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to connect...$82.50 -
1BN330 Bell & Gossett HFT-30V Expansion Tank
Bell & Gossett
$394.951BN330 Bell & Gossett HFT-30V 14 Gallon Hydronic Heating Expansion Tank. Bell & Gossett Non-ASME Expansion Tanks Series HFT Pre-Charged Diaphragm Technical Brochure Bell & Gossett Diaphragm Expansion Tanks ASME And Non-Code Instruction...$394.95 -
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 -
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