Armstrong Expansion Tanks
Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use compressed air to maintain system pressures by accepting and expelling the changing volume of water as it heats and cools. Diaphragm or bladder tank designs isolate the expanded water from the pressure controlling air cushion – which is pre-charged at the factory and can be adjusted in the field to meet final system requirements. Performance range: AET plain steel expansion tanks: 15 to 525 US gpm flow. AX diaphragm expansion tanks: 8 to 211 US gpm flow. Type L bladder type expansion tanks: 10 to 1056 US gpm flow.
- Armstrong Series AET ASME Plain Steel Expansion Tank Operating Instructions
- Armstrong Series AET ASME Plain Steel Expansion Tank Submittal Sheet
- Armstrong Series AST ASME Hydro Pneumatic Drawdown Tank Operating Instructions
- Armstrong Series AST ASME Pre Charged Expansion Tank For Potable Water Submittal Sheet
- Armstrong Series AX-L ASME Expansion Tank Product Data Sheet
- Armstrong Series AX & AX-V ASME Pre Pressurized Expansion Tank Installation Operating Instructions
- Armstrong Series AX ASME Pre Charged Horizontal Expansion Tank Submittal Sheet
- Armstrong Series AX-V ASME Pre Charged Vertical Expansion Tank Submittal Sheet
- Armstrong Series L Bladder Expansion Tank Installation Operating Instructions
- Armstrong Series L ASME Pre Charged Expansion Tank Submittal Sheet
- Armstrong Series L High Pressure Hydronic Expansion Tank Submittal Sheet 35L TO 800L
- Armstrong Series L High Pressure Hydronic Expansion Tank Submittal Sheet 1000L TO 4000L
- Armstrong Series SX Diaphragm Expansion Tank Installation Operating Instructions
- Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet
- Armstrong Series WX-L ASME Pre Charged Bladder Expansion Tank Installation Operating Instructions
- Armstrong Series WX-L ASME Pre Charged Bladder Expansion Tank Submittal Sheet
Armstrong Expansion Tanks are used in the following applications, pressure stabilization in water based mechanical systems such as booster installations, boiler systems, and chiller plants.
If you have questions you can also email your request to us at: Sales@NationalPumpSupply.com.
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572005-097 Armstrong AX-15V Pre-charged ASME Expansion Tank
Armstrong
$1,592.95AX-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...$1,592.95 -
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 -
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 -
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 -
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 -
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 -
572006-303 Armstrong AST-30 ASME Pre-Pressurized Expansion Tank
Armstrong
$1,962.90572006-303 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...$1,962.90 -
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 -
573100-008 Armstrong A400-L Expansion Tank
Armstrong
$5,448.95573100-008 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...$5,448.95 -
573100-007 Armstrong A300-L Expansion Tank
Armstrong
$4,355.95573100-007 Armstrong A300-L Expansion Tank. 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 use compressed air to...$4,355.95 -
572005-102 Armstrong AX-100V Pre-charged ASME Expansion Tank
Armstrong
$3,789.00AX-100V Armstrong Pre-charged ASME Expansion Tank 572005-102. Tank Volume 60.0 gal, (227.1 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...$3,789.00 -
AX-20V Armstrong Pre-charged ASME Expansion Tank
Armstrong
$1,987.00AX-20V Armstrong Pre-charged ASME Expansion Tank. Tank Volume 35.0 gal, (41.6 L). 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...$1,987.00 -
572018-001 Armstrong Diaphragm Expansion Tank 15
Armstrong
$118.95572018-001 Armstrong Diaphragm Expansion Tank 15. Tank Volume 2.1 gal, (8L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$118.95 -
572018-008 Armstrong Diaphragm Expansion Tank SX-90V
Armstrong
$1,322.95572018-008 Armstrong Diaphragm Expansion Tank SX-90V. Tank Volume 52.9 gal, (200L). *Please note image is generic. Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation...$1,322.95 -
572006-302 Armstrong AST-20 ASME Pre-Pressurized Expansion Tank
Armstrong
$1,714.50572006-302 Armstrong AST-20 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (3.1) / Tank (8.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$1,714.50 -
573100-006 Armstrong A200-L Expansion Tank
Armstrong
$3,898.95573100-006 Armstrong A200-L Expansion Tank. Tank Volume Gal/L: 53(200). 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...$3,898.95 -
572018-004 Armstrong Diaphragm Expansion Tank 90
Armstrong
$485.95572018-004 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...$485.95 -
A400-L Armstrong Expansion Tank Bladder Only 573002-008
Armstrong
$4,857.95A400-L Armstrong Expansion Tank Bladder Only 573002-008. 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...$4,857.95 -
572018-010 Armstrong Diaphragm Expansion Tank SX-160V
Armstrong
$2,142.95572018-010 Armstrong Diaphragm Expansion Tank SX-160V. Tank Volume 79.4 gal, (301L). *Please note image is generic. Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation...$2,142.95 -
572018-006 Armstrong Diaphragm Expansion Tank SX-40V
Armstrong
$574.95572018-006 Armstrong Diaphragm Expansion Tank SX-40V. Tank Volume 21.2 gal, (80L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$574.95 -
572018-005 Armstrong Diaphragm Expansion Tank SX-30V
Armstrong
$538.95572018-005 Armstrong Diaphragm Expansion Tank SX-30V Tank Volume 15.8 gal, (60L). Information: Armstrong NON-ASME Diaphragm Expansion Tank Submittal Sheet Armstrong Series SX Diaphragm Expansion Tank Installation Operating...$538.95 -
AX-280V Armstrong Pre-charged ASME Expansion Tank 572005-109
Armstrong
$6,451.00AX-280V Armstrong Pre-charged ASME Expansion Tank 572005-109. Tank Volume 211.0 gal, (171.0 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...$6,451.00 -
AX-60 Armstrong Pre-charged ASME Expansion Tank
Armstrong
$3,127.95AX-60 Armstrong Pre-charged ASME Expansion Tank Horizontal. 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%...$3,127.95 -
AX-144V Armstrong Pre-charged ASME Expansion Tank
Armstrong
$4,157.00AX-144V Armstrong Pre-charged ASME Expansion Tank . Tank Volume 80.0 gal, (65.0 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...$4,157.00 -
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 -
510110-013 Armstrong 85-L Replacement Bladder Only
Armstrong
$1,982.95510110-013 Armstrong 85-L Replacement Bladder Only. 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 standard...$1,982.95 -
570139-000 Armstrong AET 12x33 Expansion Tank
Armstrong
$448.95570139-000 Armstrong AET 12x33 Expansion Tank. Tank Volume 15.0 gal, (57L). *Please note image is generic. Armstrong Series AET Plain Steel Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard...$448.95 -
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 -
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 -
573100-012 Armstrong A1000-L Expansion Tank
Armstrong
$11,483.95573100-012 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...$11,483.95 -
573100-011 Armstrong A800-L Expansion Tank
Armstrong
$9,471.95573100-011 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...$9,471.95 -
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 -
572006-196 Armstrong A35-L Expansion Tank
Armstrong
$2,159.95572006-196 Armstrong A35-L Expansion Tank. Armstrong A35-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...$2,159.95 -
573001-008 Armstrong A300-L Expansion Tank Replacement Bladder
Armstrong
$4,152.95573001-008 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...$4,152.95 -
573006-008 Armstrong A1000-L Replacement Bladder Only
Armstrong
$10,218.95573006-008 Armstrong A1000-L Replacement Bladder Only. 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...$10,218.95 -
573000-008 Armstrong A200-L Replacement Bladder Only
Armstrong
$4,857.60573000-008 Armstrong A200-L Replacement Bladder Only. Armstrong A200-L Expansion Tank. Tank Volume Gal/L: 53(200). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over...$4,857.60 -
572006-308 Armstrong AST-210 ASME Pre-Pressurized Expansion Tank
Armstrong
$4,517.90572006-308 Armstrong AST-210 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (52.5) / Tank (90.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$4,517.90 -
572006-307 Armstrong AST-180 ASME Pre-Pressurized Expansion Tank
Armstrong
$4,255.20572006-307 Armstrong AST-180 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (52.5) / Tank (80.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$4,255.20 -
572006-312 Armstrong AST-160 ASME Pre-Pressurized Expansion Tank
Armstrong
$3,979.40572006-312 Armstrong AST-160 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (52.5) / Tank (70.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...$3,979.40