Armstrong Expansion Tanks

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 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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  • Armstrong AX-15V Pre-charged ASME Expansion Tank
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    AX-15V Armstrong Pre-charged ASME Expansion Tank 572005-097

    Armstrong

    $657.80
    AX-15V Armstrong Pre-charged ASME Expansion Tank 572005-097. Tank Volume 8.0 gal, (30.3 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...
    $657.80
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    $657.80
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  • AX-60V Armstrong Pre-charged ASME Expansion Tank
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    AX-60V Armstrong Pre-charged ASME Expansion Tank

    Armstrong

    $1,198.70
    AX-60V Armstrong Pre-charged ASME Expansion Tank. Tank Volume 35.0 gal, (132.5 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 use...
    $1,198.70
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    $1,198.70
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  • 573100-007 Armstrong A300-L Expansion Tank
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    573100-007 Armstrong A300-L Expansion Tank

    Armstrong

    $3,655.70
    573100-007 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...
    $3,655.70
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    $3,655.70
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  • AX-40V Armstrong Pre-charged  ASME Expansion Tank 572005-099
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    AX-40V Armstrong Pre-charged ASME Expansion Tank 572005-099

    Armstrong

    $1,085.70
    AX-40V Armstrong Pre-charged ASME Expansion Tank 572005-099. Tank Volume 25.0 gal, (94.6 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...
    $1,085.70
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    $1,085.70
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  • 572006-303 Armstrong AST-30 ASME Pre-Pressurized Expansion Tank
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    572006-303 Armstrong AST-30 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $1,962.90
    572006-303 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
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    $1,962.90
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  • AX-100V Armstrong Pre-charged ASME Expansion Tank  572005-102
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    AX-100V Armstrong Pre-charged ASME Expansion Tank 572005-102

    Armstrong

    $1,572.50
    AX-100V Armstrong Pre-charged ASME Expansion Tank 572005-102. Tank Volume 60.0 gal, (227.1 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...
    $1,572.50
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    $1,572.50
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  • 572006-302 Armstrong AST-20 ASME Pre-Pressurized Expansion Tank
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    572006-302 Armstrong AST-20 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $1,714.50
    572006-302 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
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    $1,714.50
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  • AX-20V Armstrong Pre-charged ASME Expansion Tank
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    AX-20V Armstrong Pre-charged ASME Expansion Tank

    Armstrong

    $776.40
    AX-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 use...
    $776.40
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    $776.40
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  • 573100-008 Armstrong A400-L Expansion Tank
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    573100-008 Armstrong A400-L Expansion Tank

    Armstrong

    $4,072.95
    573100-008 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...
    $4,072.95
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    $4,072.95
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  • 573100-006 Armstrong A200-L Expansion Tank
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    573100-006 Armstrong A200-L Expansion Tank

    Armstrong

    MSRP: $4,635.00
    $2,748.95
    573100-006 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...
    MSRP: $4,635.00
    $2,748.95
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    MSRP: $4,635.00
    $2,748.95
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  •  573100-012 Armstrong A1000-L Expansion Tank
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    573100-012 Armstrong A1000-L Expansion Tank

    Armstrong

    $6,672.55
     573100-012 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...
    $6,672.55
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    $6,672.55
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  • 573100-011 Armstrong A800-L Expansion Tank
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    573100-011 Armstrong A800-L Expansion Tank

    Armstrong

    $5,381.85
    573100-011 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...
    $5,381.85
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    $5,381.85
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  • AX-200V Armstrong Pre-charged  ASME Expansion Tank 572005-106
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    AX-200V Armstrong Pre-charged ASME Expansion Tank 572005-106

    Armstrong

    $2,435.60
    AX-200V Armstrong Pre-charged  ASME Expansion Tank 572005-106. Tank Volume 115.0 gal, (93.0 L). Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs...
    $2,435.60
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    $2,435.60
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  • 5720060-196 Armstrong A35-L Expansion Tank
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    5720060-196 Armstrong A35-L Expansion Tank

    Armstrong

    $1,158.95
    5720060-196 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. Expansion tanks use compressed air to...
    $1,158.95
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    $1,158.95
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  • 573001-008 Armstrong A300-L Expansion Tank Replacement Bladder
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    573001-008 Armstrong A300-L Expansion Tank Replacement Bladder

    Armstrong

    $3,352.95
    573001-008 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...
    $3,352.95
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    $3,352.95
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  • 573006-008 Armstrong A1000-L Replacement Bladder Only
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    573006-008 Armstrong A1000-L Replacement Bladder Only

    Armstrong

    $5,769.60
    573006-008 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...
    $5,769.60
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    $5,769.60
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  • 573000-008 Armstrong A200-L Replacement Bladder Only
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    573000-008 Armstrong A200-L Replacement Bladder Only

    Armstrong

    $3,257.60
    573000-008 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...
    $3,257.60
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    $3,257.60
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  • 572006-308 Armstrong AST-210 ASME Pre-Pressurized Expansion Tank
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    572006-308 Armstrong AST-210 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $4,517.90
    572006-308 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
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    $4,517.90
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  • 572006-307 Armstrong AST-180 ASME Pre-Pressurized Expansion Tank
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    572006-307 Armstrong AST-180 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $4,255.20
    572006-307 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
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    $4,255.20
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  • 572006-3121 Armstrong AST-160 ASME Pre-Pressurized Expansion Tank
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    572006-312 Armstrong AST-160 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $3,979.40
    572006-312 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
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    Qty in Cart: 0
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    $3,979.40
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  • 572006-311 Armstrong AST-125 ASME Pre-Pressurized Expansion Tank
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    572006-311 Armstrong AST-125 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $3,326.95
    572006-311 Armstrong AST-125 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (21.0) / Tank (60.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...
    $3,326.95
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    $3,326.95
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  • 572006-310 Armstrong AST-100 ASME Pre-Pressurized Expansion Tank
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    572006-310 Armstrong AST-100 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $2,996.50
    572006-310 Armstrong AST-100 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (21.0) / Tank (45.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...
    $2,996.50
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    $2,996.50
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  • 572006-306 Armstrong AST-80 ASME Pre-Pressurized Expansion Tank
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    572006-306 Armstrong AST-80 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $3,475.95
    572006-306 Armstrong AST-80 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (15.5) / Tank (35.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...
    $3,475.95
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    $3,475.95
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  • 572006-305 Armstrong AST-60 ASME Pre-Pressurized Expansion Tank
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    572006-305 Armstrong AST-60 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $2,598.75
    572006-305 Armstrong AST-60 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (15.5) / Tank (26.0). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...
    $2,598.75
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    $2,598.75
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  • 572006-304 Armstrong AST-42 ASME Pre-Pressurized Expansion Tank
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    572006-304 Armstrong AST-42 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $2,114.80
    572006-304 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...
    $2,114.80
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    Qty in Cart: 0
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    Price:
    $2,114.80
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  • 572006-301 Armstrong AST-12 ASME Pre-Pressurized Expansion Tank
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    572006-301 Armstrong AST-12 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $1,542.60
    572006-301 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...
    $1,542.60
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    Qty in Cart: 0
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    Price:
    $1,542.60
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  • 572006-300 Armstrong AST-5 ASME Pre-Pressurized Expansion Tank
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    572006-300 Armstrong AST-5 ASME Pre-Pressurized Expansion Tank

    Armstrong

    $1,324.60
    572006-300 Armstrong AST-5 ASME Pre-Pressurized Hydro-Pneumatic Expansion Tank. Volume Acceptance USGal (2.1) / Tank (3.5). Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use...
    $1,324.60
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    Qty in Cart: 0
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    Price:
    $1,324.60
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  • WX-600-L Armstrong 572006-400 (ASME) Potable Water Expansion Tank
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    WX-600-L Armstrong 510110-001 Replacement Bladder Only

    Armstrong

    $5,028.50
    WX-600-L Armstrong 510110-001 Replacement Bladder Only. This Bladder fits Armstrong Model WX-600-L Armstrong Part Number 572006-400. Please note image is of tank and not bladder. Tank not included. Information: Armstrong Series WX-L ASME Pre...
    $5,028.50
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    $5,028.50
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  • WX-600-L Armstrong 572006-400 (ASME) Potable Water Expansion Tank
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    WX-600-L Armstrong 572006-400 (ASME) Potable Water Expansion Tank

    Armstrong

    $5,399.95
    WX-600-L Armstrong 572006-400 (ASME) Potable Water Expansion Tank. Tank Volume Gal/L: 158(600). Designed and constructed per ASME, section VIII, division 1. California code sight-glass available upon request. Allow a minimum of 18" (457mm) clearance...
    $5,399.95
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    $5,399.95
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  • AX-180V Armstrong Pre-charged  ASME Expansion Tank 572005-105
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    AX-180V Armstrong Pre-charged ASME Expansion Tank 572005-105

    Armstrong

    $2,285.60
    AX-180V Armstrong Pre-charged  ASME Expansion Tank 572005-105. Tank Volume 90.0 gal, (73.0 L). Armstrong Series AX & AX-V Diaphragm Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs...
    $2,285.60
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    $2,285.60
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  • 573100-010 Armstrong A600-L Expansion Tank
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    573100-010 Armstrong A600-L Expansion Tank

    Armstrong

    $4,981.50
    573100-010 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...
    $4,981.50
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    $4,981.50
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  • 573100-009 Armstrong A500-L Expansion Tank
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    573100-009 Armstrong A500-L Expansion Tank

    Armstrong

    $4,612.90
    573100-009 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...
    $4,612.90
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    $4,612.90
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