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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
116478 Bell & Gossett B50 ASME Bladder Expansion Tank
Bell & Gossett
$2,947.95116478 Bell & Gossett B50 ASME Bladder Expansion Tank. Tank And Acceptance Volume: 13 Gallons (49) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank Brochure Bell & Gossett Series D ASME...$2,947.95 -
600-2067RP Taco PAX84-150 Expansion Tank Bladder Only
Taco
$2,971.95600-2067RP Taco PAX84-150 Expansion Tank Bladder Only. 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...$2,971.95 -
PTA-125V Bell & Gossett 1BN354LF ASME Potable Expansion Tank
Bell & Gossett
$5,130.95PTA-125V Bell & Gossett 1BN354LF 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...$5,130.95 -
CA2000-125 Taco CA Expansion Tank 528 Gallon
Taco
$19,153.00CA2000-125 Taco CA Expansion Tank 528 Gallon. Tank Volume: 528 Gal. 2000 Liter. Standard Design Pressure and Temperature: 125 psi @ 280*F Max. Information: Taco Series CA Expansion Tank Brochure Taco Series CA Expansion Tank Instruction...$19,153.00 -
1BN166LF Bell & Gossett WTA-457 ASME Domestic Well Tank
Bell & Gossett
$26,761.001BN166LF Bell & Gossett WTA-457 ASME Domestic Well Tank. Tank Volume Gallons: 528 (2000L). For Potable Well Water Systems. "WTA" Well Water Tanks (ASME Construction) Designed for Potable Well Water and Booster Pump Systems. Bell & Gossett...$26,761.00 -
116316 Bell & Gossett Series D-100SG ASME Diaphragm Tank w/ CA SIGHT Glass
Bell & Gossett
$3,769.00116316 Bell & Gossett Series D-100SG ASME Diaphragm Tank w/ CA SIGHT Glass. Tank Volume: 55.7 Gallons (211.8L). Series "D" (ASME) Pressurized Expansion Tanks Vertical. "Not For Potable Water Systems". Bell & Gossett Series "D" Pressurized...$3,769.00 -
PAX350-150 Taco Bladder Expansion Tank Bladder Only 600-2073RP
Taco
$4,897.00PAX350-150 Taco Bladder Expansion Tank Bladder Only 600-2073RP. Tank Volume: 92 gal, 348 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...$4,897.00 -
2220600 Wessels Series NLA-600 Expansion Tank Bladder Only
Wessels
$2,947.952220600 Wessels Series NLA-600 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...$2,947.95 -
510109-903 Armstrong AX-80V Saddles Horizontal Mounting
Armstrong
$242.95510109-903 Armstrong AX-80V Saddles Horizontal Mounting. Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use compressed air to...$242.95 -
CA1400-125 Taco CA Expansion Tank 370 Gallon
Taco
$17,854.95CA1400-125 Taco CA Expansion Tank 370 Gallon. Tank Volume: 370 Gal. 1400 Liter. Standard Design Pressure and Temperature: 125 psi @ 280*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank...$17,854.95 -
CA1400-125 Taco CA Expansion Tank Replacement Bladder Only
Taco
$15,127.00CA1400-125 Taco CA Expansion Tank Replacement Bladder Only 600-024RP. Tank Volume: 370 Gal. 1400 Liter. Standard Design Pressure and Temperature: 125 psi @ 280*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA...$15,127.00 -
85-L Armstrong Replacement Bladder Only 510110-013
Armstrong
$2,457.9585-L Armstrong Replacement Bladder Only 510110-013. Armstrong A85-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...$2,457.95 -
572005-108 Armstrong 260V Pre-charged ASME Expansion Tank
Armstrong
$4,387.00572005-108 Armstrong 260V Pre-charged ASME Expansion Tank . *Please note image is generic. Tank Volume 158.0 gal, (128.0 L). Armstrong Series AX & AX-V Diaphragm Expansion Tanks are designed to reduce tank sizes by up to 80% over...$4,387.00 -
BB-80-C Boiler Buddy Buffer Tank 80 Gal W/Internal Carbon Steel Coil
Boiler Buddy
$3,857.95BB-80-C Boiler Buddy Buffer Tank 80 Gal W/Internal Carbon Steel Coil. 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...$3,857.95 -
572018-009 Armstrong Diaphragm Expansion Tank SX-110V
Armstrong
$1,680.95572018-009 Armstrong Diaphragm Expansion Tank SX-110V. Tank Volume 66.1 gal, (250L). *Please note image is generic. Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation...$1,680.95 -
1BN364LF Bell & Gossett PTA-453 ASME Expansion Tank
Bell & Gossett
$14,482.951BN364LF Bell & Gossett PTA-453 ASME Expansion Tank. System Connection: 2" NPTF, Tank Volume: 264 Gallons (1000L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water Systems. Bell & Gossett...$14,482.95 -
600-2404RP Taco CA140-125 Expansion Tank Bladder Only
Taco
$4,073.95600-2404RP Taco CA140-125 Expansion Tank Bladder Only. Tank Volume: 37 Gal. 140 Liter. Standard Design Pressure and Temperature: 125 psi @ 240*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank...$4,073.95 -
189597 Bell & Gossett Series B-5000 ASME Expansion Tank Bladder Only
Bell & Gossett
$41,392.95189597 Bell & Gossett Series B-5000 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 1321 Gallons (5000) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time...$41,392.95 -
189596 Bell & Gossett B-400, B-500 & B-600 Series LA Bladder Only
Bell & Gossett
$5,481.95189596 Bell & Gossett B-400, B-500 & B-600 Series LA Bladder Only. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time & Pricing. If you have questions you can also email your...$5,481.95 -
189595 Bell & Gossett B-130, B-165, B-200 & B-300 LA Replacement Bladder Only
Bell & Gossett
$4,291.95189595 Bell & Gossett B-130, B-165, B-200 & B-300 LA Replacement Bladder Only. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time & Pricing. If you have questions you can also...$4,291.95 -
189593 Bell & Gossett Series B-4000 ASME Expansion Tank Bladder Only
Bell & Gossett
$35,681.00189593 Bell & Gossett Series B-4000 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 1057 Gallons (4000) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank...$35,681.00 -
189592 Bell & Gossett Series B-3500 ASME Expansion Tank Bladder Only
Bell & Gossett
$28,435.00189592 Bell & Gossett Series B-3500 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 925 Gallons (3500) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time...$28,435.00 -
189591 Bell & Gossett Series B-3000 ASME Expansion Tank Bladder Only
Bell & Gossett
$25,270.00189591 Bell & Gossett Series B-3000 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 792 Gallons (3000) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank...$25,270.00 -
189589 Bell & Gossett Series B-2000 ASME Expansion Tank Bladder Only
Bell & Gossett
$17,152.00189589 Bell & Gossett Series B-2000 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 528 Gallons (2000) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time...$17,152.00 -
189588 Bell & Gossett Series B-1600 ASME Expansion Tank Bladder Only
Bell & Gossett
$16,672.95189588 Bell & Gossett Series B-1600 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 422 Gallons (1600) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time...$16,672.95 -
189587 Bell & Gossett Series B-1400 ASME Expansion Tank Bladder Only
Bell & Gossett
$13,574.95189587 Bell & Gossett Series B-1400 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 370 Gallons (1400) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time...$13,574.95 -
189586 Bell & Gossett Series B-1200 ASME Expansion Tank Bladder Only
Bell & Gossett
$9,212.95189586 Bell & Gossett Series B-1200 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 317 Gallons (1200) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank Brochure Bell...$9,212.95 -
189585 Bell & Gossett Series B-1000 ASME Expansion Tank Bladder Only
Bell & Gossett
$7,104.95189585 Bell & Gossett Series B-1000 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 264 Gallons (1000) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time &...$7,104.95 -
1BN164LF Bell & Gossett WTA-455 ASME Domestic Well Tank
Bell & Gossett
$13,621.951BN164LF Bell & Gossett WTA-455 ASME Domestic Well Tank. Tank Volume Gallons: 370 (1400L). For Potable Well Water Systems. "WTA" Well Water Tanks (ASME Construction) Designed for Potable Well Water and Booster Pump Systems. Information: Bell...$13,621.95 -
1BN376LF Bell & Gossett WTA-449 Domestic Well Tank
Bell & Gossett
$8,340.001BN376LF Bell & Gossett WTA-449 Domestic Well Tank. Tank Volume Gallons: 106 (400L). For Potable Well Water Systems. Please note this item has to ship LTL freight at 658lbs. Information: Bell & Gossett ASME Expansion Tanks Series WTA...$8,340.00 -
573100-012 Armstrong A1000-L Expansion Tank
Armstrong
$10,323.95573100-012 Armstrong A1000-L Expansion Tank. Tank Volume Gal/L: 264(999). 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...$10,323.95 -
573100-011 Armstrong A800-L Expansion Tank
Armstrong
$9,171.95573100-011 Armstrong A800-L Expansion Tank. Tank Volume Gal/L: 211(800). 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...$9,171.95 -
600-2068RP Taco PAX130-150 Expansion Tank Bladder Only
Taco
$3,257.40600-2068RP Taco PAX130-150 Expansion Tank Bladder Only. Tank Volume: 34 gal, 129 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...$3,257.40 -
PAX130-150P Taco Bladder Expansion Tank Potable Water
Taco
$3,276.00PAX130-150P Taco Bladder Expansion Tank Potable Water. Tank Volume: 34 gal, 129 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...$3,276.00 -
CA1600-150 Taco CA Expansion Tank 422 Gallon
Taco
$17,531.00CA1600-150 Taco CA Expansion Tank 422 Gallon / 1600 Liter. Standard Design Pressure and Temperature: 150 psi @ 280*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank Brochure Taco Series CA...$17,531.00 -
CA1600-125 Taco CA Expansion Tank 422 Gallon
Taco
$17,438.00CA1600-125 Taco CA Expansion Tank 422 Gallon. Tank Volume: 422 Gal. 1600 Liter. Standard Design Pressure and Temperature: 125 psi @ 280*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank...$17,438.00 -
AX-200V Armstrong Pre-charged ASME Expansion Tank 572005-106
Armstrong
$4,928.00AX-200V Armstrong Pre-charged ASME Expansion Tank 572005-106. Tank Volume 115.0 gal, (93.0 L). *Please note image is generic. Armstrong Series AX & AX-V Diaphragm Tanks are designed to reduce tank sizes by up to 80% over standard designs...$4,928.00 -
600-2065RP Taco PAX30-125 Expansion Tank Bladder Only
Taco
$1,893.60600-2065RP 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...$1,893.60 -
CA450-175P Taco CA Bladder Expansion Tank
Taco
$6,457.00CA450-175P Taco CA Bladder Expansion Tank. Tank Volume: 119 Gal. 450 Liter. Standard Design Pressure and Temperature: 175 psi @ 240*F Max. Suitable for Vertical or Horizontal Installation. Information: Taco Series CA Expansion Tank...$6,457.00 -
189582 Bell & Gossett Series B-500 ASME Expansion Tank Bladder Only
Bell & Gossett
$5,128.95189582 Bell & Gossett Series B-500 ASME Expansion Tank Bladder Only. Tank And Acceptance Volume Gallons: 132 Gallons (500) liters. Bell & Gossett Pre-charged Bladder & Diaphragm Tanks ASME (B,D,B-LA). Please Contact Us For Lead Time &...$5,128.95