Expansion Tanks
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572018-004 Armstrong Diaphragm Expansion Tank 90
Armstrong
$552.95572018-004 Armstrong Diaphragm Expansion Tank 90, non-asme, 13.2 gallon tank, 8.2 acceptance volume. *Please note image is generic. Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion...$552.95 -
FXA-2500 Wessels Expansion Tank Bladder Only 2212500
Wessels
$7,280.00FXA-2500 Wessels Expansion Tank Bladder Only 2212500. Information: Wessels Series FXA Brochure Wessels patented FXA Tanks are ASME replaceable bladder type pre-charged hydro-pneumatic tanks for commercial and industrial well and water...$7,280.00 -
85-L Armstrong Expansion Tank 572006-198
Armstrong
$2,871.9585-L Armstrong Expansion Tank 572006-198. Armstrong 85-L Expansion Tank. Tank Volume Gal/L: 23 (87). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs...$2,871.95 -
CBX254-125 Taco CBX Vertical Bladder Expansion Tank 67 Gal
Taco
$5,197.95CBX254-125 Taco CBX Vertical Bladder Expansion Tank 67 Gal. Tank Volume, Gal: 67, Liter: 254. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for...$5,197.95 -
CBX130-125 Taco CBX Vertical Bladder Expansion Tank 34 Gal
Taco
$4,471.95CBX130-125 Taco CBX Vertical Bladder Expansion Tank 34 Gal. Tank Volume, Gal: 34, Liter: 130. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for...$4,471.95 -
PAX30-150 Taco Bladder Expansion Tank
Taco
$2,469.95PAX30-150 Taco Bladder Expansion Tank. Acceptance Volume: 5 gal, 19 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...$2,469.95 -
PTA-80V Bell & Gossett 1BN352LF ASME Potable Expansion Tank
Bell & Gossett
$4,032.00PTA-80V Bell & Gossett 1BN352LF 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...$4,032.00 -
113227 Bell & Gossett TPV-1/2FF Tank Purge Valve
Bell & Gossett
$82.50113227 Bell & Gossett TPV-1/2FF Tank Purge Valve. System Connection: 1/2" Female NPT - Tank Connection: 1/2" Female NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to...$82.50 -
1BN334 Bell & Gossett HFT-110V Expansion Tank
Bell & Gossett
$974.001BN334 Bell & Gossett HFT-110V 62 Gallon Hydronic Heating Expansion Tank 1BN334. Bell & Gossett Non-ASME Expansion Tanks Series HFT Pre-Charged Diaphragm Technical Brochure Bell & Gossett Diaphragm Expansion Tanks ASME And Non-Code...$974.00 -
1BN322LF Bell & Gossett PT-60V Expansion Tank
Bell & Gossett
$494.951BN322LF Bell & Gossett PT-60V 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...$494.95 -
FXA-200 Wessels Series Expansion Tank 21010200
Wessels
$3,587.00FXA-200 Wessels Series Expansion Tank 21010200. Wessels patented FXA Tanks are ASME replaceable bladder type pre-charged hydro-pneumatic tanks for commercial and industrial well and water systems, booster systems, or other non-heated potable water...$3,587.00 -
2220300 Wessels Series NLA-300 Expansion Tank Bladder Only
Wessels
$2,952.002220300 Wessels Series NLA-300 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...$2,952.00 -
BB-50-G Boiler Buddy Buffer Tank 50 Gal Geothermal W/Aquastat
Boiler Buddy
BB-50-G Boiler Buddy Buffer Tank 50 Gal Geothermal With 3 Aquastat Wells. 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...Qty in Cart: 0Quantity:Price:Subtotal: -
113243 Bell & Gossett TPV-1.5FF Tank Purge Valve
Bell & Gossett
$254.95113243 Bell & Gossett TPV-1.5FF Tank Purge Valve, 2" female NPT System Connection x 2" Female NPT Tank Connection. Please note image is generic. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve...$254.95 -
35-L Armstrong Expansion Tank 572006-196
Armstrong
$2,459.9535-L Armstrong Expansion Tank 572006-196. Armstrong 35-L Expansion Tank. Tank Volume Gal/L: 10(38). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs...$2,459.95 -
572006-303 Armstrong AST-30 ASME Pre-Pressurized Expansion Tank
Armstrong
$2,861.95572006-303 Armstrong AST-30 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (10.5) / Tank (15.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$2,861.95 -
AX-180V Armstrong 572005-105 Pre-charged ASME Expansion Tank
Armstrong
$4,542.00AX-180V Armstrong 572005-105 Pre-charged ASME Expansion Tank. *Please note image is generic. Tank Volume 90.0 gal, (73.0 L). Armstrong Series AX & AX-V Diaphragm Expansion Tanks are designed to reduce tank sizes by up to 80% over standard...$4,542.00 -
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 -
116310 Bell & Gossett Series D-280 ASME Expansion Tank
Bell & Gossett
$9,247.95116310 Bell & Gossett Series D-280 ASME Expansion Tank. Tank Volume: 211.0 Gallons (800.0L). Series "D" (ASME) Pressurized Expansion Tanks Vertical. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell &...$9,247.95 -
CX300-125 Taco 79 Gal Diaphragm Expansion Tank
Taco
$4,459.95CX300-125 Taco 79 Gal Diaphragm Expansion Tank. Tank Volume: 79 Gal, 300 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...$4,459.95 -
CBX300-125 Taco CBX Vertical Bladder Expansion Tank 79 Gal
Taco
$5,581.95CBX300-125 Taco CBX Vertical Bladder Expansion Tank 79 Gal. Tank Volume, Gal: 79, Liter: 300. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for...$5,581.95 -
CA215-125 Taco CA Expansion Tank
Taco
$5,140.95CA215-125 Taco CA Expansion Tank. Tank Volume: 57 Gal. 215 Liter. Standard Design Pressure and Temperature: 125 psi @ 240*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank Brochure Taco Series...$5,140.95 -
116305 Bell & Gossett Series D-144 ASME Expansion Tank
Bell & Gossett
$4,419.95116305 Bell & Gossett Series D-144 ASME Expansion Tank. Tank Volume: 77.0 Gallons (291.5L). Series "D" (ASME) Pressurized Expansion Tank. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett...$4,419.95 -
PTA-20V Bell & Gossett 1BN348LF ASME Potable Expansion Tank
Bell & Gossett
$2,403.95PTA-20V Bell & Gossett 1BN348LF ASME Potable Expansion Tank. The 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 build up. PTA-5 through...$2,403.95 -
PTA-12 Bell & Gossett 1BN347LF ASME Potable Expansion Tank
Bell & Gossett
$2,051.00PTA-12 Bell & Gossett 1BN347LF ASME Potable Expansion Tank. The 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 build up. PTA-5 through...$2,051.00 -
116664 Bell & Gossett Compression Tank Model 40
Bell & Gossett
$1,242.00116664 Bell & Gossett Compression Tank Model 40. Capacity Gallons 40. Required 112010 Bell & Gossett Airtrol Tank Fitting ATF-12 Bell & Gossett ASME Compression Tanks Technical Brochure Bell & Gossett ASME Compression Tank...$1,242.00 -
1BN317LF Bell & Gossett PT-5 Expansion Tank
Bell & Gossett
$100.001BN317LF 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...$100.00 -
22010300 Wessels Series NLA-300 Expansion Tank
Wessels
$4,761.9522010300 Wessels Series NLA-300 Expansion Tank. 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 properly...$4,761.95 -
116481 Bell & Gossett B130 ASME Bladder Expansion Tank
Bell & Gossett
$4,122.00116481 Bell & Gossett B130 ASME Bladder Expansion Tank. Tank And Acceptance Volume Gallons: 34 Gallons (130) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank Brochure Bell & Gossett...$4,122.00 -
PAX170-150P Taco Bladder Expansion Tank Potable Water
Taco
$4,357.00PAX170-150P Taco Bladder Expansion Tank Potable Water. Tank Volume: 45 gal, 170 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...$4,357.00 -
BB-119-3W Boiler Buddy Buffer Tank 119 Gal W/3 Aquastat Wells
Boiler Buddy
$4,216.95BB-119-3W Boiler Buddy Buffer Tank 119 Gal W/3 Aquastat Wells. 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...$4,216.95 -
PAX30-125 Taco Expansion Tank Bladder Only 600-2065RP
Taco
$2,557.95600-2065RP Taco PAX30-125 Expansion Tank Bladder Only. Acceptance Volume: 5 gal, 19 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...$2,557.95 -
CBX130-125B Taco CBX Vertical Bladder Expansion Tank W/Sight Glass
Taco
$4,658.95CBX130-125B Taco CBX Vertical Bladder Expansion Tank W/Sight Glass, 34 Gal. Tank Volume, Gal: 34, Liter: 130. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and...$4,658.95 -
573001-008 Armstrong A300-L Expansion Tank Replacement Bladder
Armstrong
$3,208.95573001-008 Armstrong A300-L Expansion Tank Replacement Bladder Only. Tank Volume Gal/L: 80(300). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks...$3,208.95 -
572006-304 Armstrong AST-42 ASME Pre-Pressurized Expansion Tank
Armstrong
$3,157.95572006-304 Armstrong AST-42 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (15.5) / Tank (22.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$3,157.95 -
572006-301 Armstrong AST-12 ASME Pre-Pressurized Expansion Tank
Armstrong
$2,463.95572006-301 Armstrong AST-12 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (3.1) / Tank (5.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$2,463.95 -
PS135-125 Taco PS Expansion Tank 135 Gal
Taco
$2,445.50PS135-125 Taco PS Expansion Tank 135 Gal. Capacity (Gal) 135. 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...$2,445.50 -
PS120-125 Taco PS Expansion Tank 120 Gal
Taco
$2,461.95PS120-125 Taco PS Expansion Tank 120 Gal. Capacity (Gal) 120. 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...$2,461.95 -
CBX15-125 Taco CBX Vertical Bladder Expansion Tank 4 Gal
Taco
$2,464.95CBX15-125 Taco CBX Vertical Bladder Expansion Tank 4 Gal. Tank Volume, Gal: 4, Liter: 15. *Vertical Installation Only. Taco CBX Expansion Tanks are bladder type tanks that provide permanent separation of air and water. Designed for use...$2,464.95 -
600-2072RP Taco PAX300-150 Expansion Tank Bladder Only
Taco
$4,867.00600-2072RP Taco PAX300-150 Expansion Tank Bladder Only. Tank Volume: 79 gal, 299 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...$4,867.00
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.