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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573100-010 Armstrong A600-L Expansion Tank
Armstrong
$8,381.95573100-010 Armstrong A600-L Expansion Tank. Tank Volume Gal/L: 158(600). 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...$8,381.95 -
573100-009 Armstrong A500-L Expansion Tank
Armstrong
$6,912.95573100-009 Armstrong A500-L Expansion Tank. Tank Volume Gal/L: 132(500). 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...$6,912.95 -
PAX42-150 Taco Bladder Expansion Tank
Taco
$2,672.95PAX42-150 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...$2,672.95 -
Bell & Gossett 1BN308LF WTX-26S Expansion Tank
Bell & Gossett
Bell & Gossett 1BN308LF WTX-26S Expansion Tank. Vol/Tank Accept (gal) 26/11.4. The Series “WTX” tanks will help protect the pump and pressure switches against short cycling. The potable well tank delivers adequate water under...Qty in Cart: 0Quantity:Price:Subtotal: -
1BN306LF Bell & Gossett WTX-14S Expansion Tank
Bell & Gossett
1BN306LF Bell & Gossett WTX-14S Expansion Tank. Vol/Tank Accept (gal) 14/11.3. The Series “WTX” tanks will help protect the pump and pressure switches against short cycling. The potable well tank delivers adequate water under...Qty in Cart: 0Quantity:Price:Subtotal: -
1BN305LF Bell & Gossett WTX-10S Expansion Tank
Bell & Gossett
1BN305LF Bell & Gossett WTX-10S Expansion Tank. Vol/Tank Accept (gal) 10.3/10.3. The Series “WTX” tanks will help protect the pump and pressure switches against short cycling. The potable well tank delivers adequate water under...Qty in Cart: 0Quantity:Price:Subtotal: -
1BN103LF Bell & Gossett WT-403 Domestic Well Tank
Bell & Gossett
$1,492.851BN103LF Bell & Gossett WT-403 Domestic Well Tank. Bell & Gossett None-ASME Domestic Well Tanks. The Series WT expansion tank will help protect the pump and pressure switches against short cycling. The Potable well tank delivers adequate water...$1,492.85 -
1BN102LF Bell & Gossett WT-402 Domestic Well Tank
Bell & Gossett
$1,472.551BN102LF Bell & Gossett WT-402 Domestic Well Tank. Bell & Gossett None-ASME Domestic Well Tanks. The Series WT expansion tank will help protect the pump and pressure switches against short cycling. The Potable well tank delivers adequate water...$1,472.55 -
1BN372LF Bell & Gossett WTA-404 ASME Domestic Well Tank
Bell & Gossett
$4,893.951BN372LF Bell & Gossett WTA-404 ASME Domestic Well Tank. Tank Volume Gallons: 68 (257L). For Potable Well Water Systems. "WTA" Well Water Tanks (ASME Construction) Designed for Potable Well Water and Booster Pump Systems. Bell & Gossett ASME...$4,893.95 -
1BN153LF Bell & Gossett WTA-403 ASME Domestic Well Tank
Bell & Gossett
$5,278.951BN153LF Bell & Gossett WTA-403 ASME Domestic Well Tank. Tank Volume Gallons: 34 (129L). For Potable Well Water Systems. "WTA" Well Water Tanks (ASME Construction) Designed for Potable Well Water and Booster Pump Systems. Bell & Gossett ASME...$5,278.95 -
1BN152LF Bell & Gossett WTA-402 ASME Domestic Well Tank
Bell & Gossett
$5,487.951BN152LF Bell & Gossett WTA-402 ASME Domestic Well Tank. Tank Volume Gallons: 25 (95L). For Potable Well Water Systems. "WTA" Well Water Tanks (ASME Construction) Designed for Potable Well Water and Booster Pump Systems. Bell & Gossett ASME...$5,487.95 -
1BN377LF Bell & Gossett WTA-450 ASME Domestic Well Tank
Bell & Gossett
$8,655.001BN377LF Bell & Gossett WTA-450 ASME Domestic Well Tank. Tank Volume Gallons: 132 (500L). For Potable Well Water Systems. Bell & Gossett ASME Expansion Tanks Series WTA Pre-Charged Tanks Technical Brochure Bell & Gossett Series WTA ASME...$8,655.00 -
116309 Bell & Gossett Series D-260 ASME Expansion Tank
Bell & Gossett
$7,787.00116309 Bell & Gossett Series D-260 ASME Expansion Tank. Tank Volume: 158.0 Gallons (600.0L). Series "D" (ASME) Pressurized Expansion Tanks Horizontal. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell &...$7,787.00 -
116307 Bell & Gossett Series D-200 ASME Expansion Tank
Bell & Gossett
$5,573.95116307 Bell & Gossett Series D-200 ASME Expansion Tank. Tank Volume: 110.0 Gallons (416.4L). Series "D" (ASME) Pressurized Expansion Tank. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett...$5,573.95 -
116306 Bell & Gossett Series D-180 ASME Expansion Tank
Bell & Gossett
$5,410.95116306 Bell & Gossett Series D-180 ASME Expansion Tank. Tank Volume: 90.0 Gallons (340.7L). Series "D" (ASME) Pressurized Expansion Tank. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett...$5,410.95 -
116304 Bell & Gossett Series D-120 ASME Expansion Tank
Bell & Gossett
$4,387.95116304 Bell & Gossett Series D-120 ASME Expansion Tank. Tank Volume: 68.0 Gallons (257.4L). Series "D" (ASME) Pressurized Expansion Tank. "Not For Potable Water Systems". Bell & Gossett Expansion Tank Information: Bell & Gossett...$4,387.95 -
113241 Bell & Gossett TPV-1-1/4FM Tank Purge Valve
Bell & Gossett
$154.95113241 Bell & Gossett TPV-1-1/4FM Tank Purge Valve. System Connection: 1-1/4" Female NPT - Tank Connection: 1-1/4" Male NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to...$154.95 -
113240 Bell & Gossett TPV-1-1/4SM Tank Purge Valve
Bell & Gossett
$154.95113240 Bell & Gossett TPV-1-1/4SM Tank Purge Valve. System Connection: 1-1/4" Female SWT - Tank Connection: 1-1/4" Male NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to...$154.95 -
113239 Bell & Gossett TPV-1-1/4FF Tank Purge Valve
Bell & Gossett
$204.95113239 Bell & Gossett TPV-1-1/4FF Tank Purge Valve. System Connection: 1-1/4" Female NPT - Tank Connection: 1-1/4" Female NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to...$204.95 -
113238 Bell & Gossett TPV-1-1/4SF Tank Purge Valve
Bell & Gossett
$154.95113238 Bell & Gossett TPV-1-1/4SF Tank Purge Valve. System Connection: 1-1/4" Female SWT - Tank Connection: 1-1/4" Female NPT. The Bell & Gossett Tank Purge Valve (TPV) is a combination full port ball type isolation valve and drain valve used to...$154.95 -
1BN363LF Bell & Gossett PTA-452 Expansion Tank
Bell & Gossett
$13,961.951BN363LF Bell & Gossett PTA-452 Expansion Tank. *Please note image is generic. System Connection: 2" NPTF, Tank Volume: 211 Gallons (800L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water...$13,961.95 -
1BN362LF Bell & Gossett PTA-451 Expansion Tank
Bell & Gossett
$11,280.951BN362LF Bell & Gossett PTA-451 Expansion Tank. *Please note image is generic. System Connection: 2" NPTF, Tank Volume: 158 Gallons (600L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water...$11,280.95 -
1BN361LF Bell & Gossett PTA-450 Expansion Tank
Bell & Gossett
$11,273.001BN361LF Bell & Gossett PTA-450 Expansion Tank. System Connection: 2" NPTF, Tank Volume: 132 Gallons (500L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water Systems. Bell & Gossett...$11,273.00 -
1BN360LF Bell & Gossett PTA-449 Expansion Tank
Bell & Gossett
$8,941.951BN360LF Bell & Gossett PTA-449 Expansion Tank. *Please note image is generic. System Connection: 2" NPTF, Tank Volume: 106 Gallons (400L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water...$8,941.95 -
1BN359LF Bell & Gossett PTA-448 Expansion Tank
Bell & Gossett
$8,387.951BN359LF Bell & Gossett PTA-448 Expansion Tank. *Please note image is generic. System Connection: 2" NPTF, Tank Volume: 80 Gallons (300L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water...$8,387.95 -
1BN358LF Bell & Gossett PTA-447 Expansion Tank
Bell & Gossett
$6,581.951BN358LF Bell & Gossett PTA-447 Expansion Tank. *Please note image is generic. System Connection: 2" NPTF, Tank Volume: 53 Gallons (200L). Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water...$6,581.95 -
1BN357LF Bell & Gossett PTA-210V Expansion Tank
Bell & Gossett
$4,761.951BN357LF Bell & Gossett PTA-210V Expansion Tank. *Please note image is generic. Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water Systems. Bell & Gossett Potable Water Diaphragm Expansion Tanks...$4,761.95 -
1BN356LF Bell & Gossett PTA-180V Expansion Tank
Bell & Gossett
$5,487.951BN356LF Bell & Gossett PTA-180V Expansion Tank. *Please note image is generic. Series "PTA" (ASME) Residential/Commercial Potable Water Diaphragm Expansion Tanks For Potable Water Systems. Bell & Gossett Potable Water Diaphragm Expansion Tanks...$5,487.95 -
PTA-5 Bell & Gossett 1BN346LF Expansion Tank
Bell & Gossett
$1,771.95PTA-5 Bell & Gossett 1BN346LF Expansion Tank. *Please note image is generic. Bell & Gossett Potable Water Diaphragm Expansion Tanks ASME (PTA) Information. Bell & Gossett ASME Expansion Tanks Series PTA Pre-Charged Tanks Technical...$1,771.95 -
116069 Bell & Gossett Series B-15000 ASME Pressurized Expansion Tank
Bell & Gossett
$168,409.00116069 Bell & Gossett Series B-15000 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 3963 Gallons (15,000) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank Brochure Bell...$168,409.00 -
116068 Bell & Gossett Series B-10000 ASME Pressurized Expansion Tank
Bell & Gossett
$118,754.00116068 Bell & Gossett Series B-10000 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 2640 Gallons (10,000) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank Brochure Bell...$118,754.00 -
116067 Bell & Gossett Series B-7500 ASME Pressurized Expansion Tank
Bell & Gossett
$94,377.00116067 Bell & Gossett Series B-7500 ASME Pressurized Expansion Tank, Vertical. Tank And Acceptance Volume Gallons: 1980 Gallons (7500) liters. Bell & Gossett Expansion Tank Information: Bell & Gossett Series B ASME Expansion Tank...$94,377.00 -
116066 Bell & Gossett Series B-5000 ASME Pressurized Expansion Tank
Bell & Gossett
$63,836.00116066 Bell & Gossett Series B-5000 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 1321 Gallons (5000) liters. Repair Parts: 189597 Bell & Gossett Series B-5000 ASME Expansion Tank Bladder Only Bell & Gossett...$63,836.00 -
116065 Bell & Gossett Series B-4000 ASME Pressurized Expansion Tank
Bell & Gossett
$48,870.00116065 Bell & Gossett Series B-4000 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 1057 Gallons (4000) liters. Repair Parts: 189593 Bell & Gossett Series B-4000 ASME Expansion Tank Bladder Only Bell & Gossett...$48,870.00 -
116064 Bell & Gossett Series B-3500 ASME Pressurized Expansion Tank
Bell & Gossett
$47,721.00116064 Bell & Gossett Series B-3500 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 925 Gallons (3500) liters. Repair Parts: 189592 Bell & Gossett Series B-3500 ASME Expansion Tank Bladder Only Bell & Gossett...$47,721.00 -
116063 Bell & Gossett Series B-3000 ASME Pressurized Expansion Tank
Bell & Gossett
$32,320.00116794 Bell & Gossett Series B-3000 ASME Pressurized Expansion Tank, Vertical. Tank And Acceptance Volume Gallons: 792 Gallons (3000) liters. Repair Parts: 189591 Bell & Gossett Series B-3000 ASME Expansion Tank Bladder Only Bell &...$32,320.00 -
116062 Bell & Gossett Series B-2500 ASME Pressurized Expansion Tank
Bell & Gossett
$25,621.00116062 Bell & Gossett Series B-2500 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 528 Gallons (2000) liters. Repair Parts: 189590 Bell & Gossett Series B-2500 Expansion Tank Bladder Only Bell & Gossett Expansion...$25,621.00 -
116061 Bell & Gossett Series B-2000 ASME Pressurized Expansion Tank
Bell & Gossett
$18,568.00116061 Bell & Gossett Series B-2000 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 528 Gallons (2000) liters. Repair Parts: 189589 Bell & Gossett Series B-2000 ASME Expansion Tank Bladder Only Bell & Gossett...$18,568.00 -
116060 Bell & Gossett Model B-1600 ASME Pressurized Expansion Tank
Bell & Gossett
$21,097.00116060 Bell & Gossett Model B-1600 ASME Pressurized Expansion Tank. Tank And Acceptance Volume Gallons: 422 Gallons (1600) liters. Repair Parts: 189588 Bell & Gossett Series B-1600 ASME Expansion Tank Bladder Only Bell & Gossett...$21,097.00 -
116059 Bell & Gossett Series B-1400 ASME Pressurized Expansion Tank
Bell & Gossett
$14,542.00116059 Bell & Gossett Series B-1400 ASME Pressurized Expansion Tank, Vertical. Tank And Acceptance Volume Gallons: 370 Gallons (1400) liters. Repair Parts: 189587 Bell & Gossett Series B-1400 ASME Expansion Tank Bladder Only Bell &...$14,542.00