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  • Armstrong 4030 End Suction Base Mounted Pumps
  • Armstrong 4270 & 4270 Stock Motor Mounted Pumps
  • Armstrong 4280 Motor Mounted Pumps
  • Armstrong 4300 Vertical In-Line Pumps
  • Armstrong 4360 Vertical In-Line Pumps
  • Armstrong 4380 Vertical In-Line Pumps
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  • Armstrong 4700 Vertical MultiStage Pumps
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  • Armstrong E2 Circulators
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  • Bell & Gossett ecocirc® XL
  • Electric Motors
  • WEDA Submersible Drainage Pumps
  • wilo Stratos
  • Power Packs
  • Couplers
  • Bearing Assemblies
  • Impellers
  • Mechanical Seals
  • Circulator Pumps
  • Glycol Make Up Unit
  • Headers
  • Flange Sets
  • E-1510 Bell & Gossett
  • Submersible Pumps
  • Ball Bearings
  • Plumbing Supplies
  • Bell & Gossett
  • S.A. Armstrong
  • Water Transfer Pumps
  • Accessories

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    • AX-V Series Expansion Tanks – 175 & 250 PSI

    Armstrong AX-V Series – Pre-charged (ASME) Expansion Tanks, 175 PSI & 250 PSI

    High-pressure versions of the Armstrong AX-V Series pre-charged ASME diaphragm expansion tank, rated 175 psi or 250 psi for taller buildings and higher-pressure hydronic systems.

    Features

    • Shell: Steel
    • Diaphragm: Heavy duty butyl
    • Charging valve: 0.302"-32NC (standard tire valve)
    • Not for domestic potable water systems.
    • Designed and constructed per ASME Section VIII, Division 1.
    • Lift rings on models AX-40V to AX-280V.
    • California code sight-glass and mounting clips available on request.

    Select your size

    Click a model for full specifications, dimensions and documents.

    Model Tank volume A B Weight
    AX-15V – 175 PSI 7.8 gal (29.5 L) 12.00" 19.00" 46 lb
    AX-15V – 250 PSI 7.8 gal (29.5 L) 12.00" 19.00" 60 lb
    AX-20V – 175 PSI 11.0 gal (41.6 L) 12.00" 25.00" 57 lb
    AX-20V – 250 PSI 11.0 gal (41.6 L) 12.00" 25.00" 76 lb
    AX-40V – 175 PSI 25.0 gal (94.6 L) 16.00" 33.00" 84 lb
    AX-40V – 250 PSI 25.0 gal (94.6 L) 16.00" 33.00" 110 lb
    AX-60V – 175 PSI 35.0 gal (132.5 L) 16.00" 44.00" 106 lb
    AX-60V – 250 PSI 35.0 gal (132.5 L) 16.00" 44.00" 139 lb
    AX-80V – 175 PSI 45.0 gal (170.3 L) 20.00" 38.00" 163 lb
    AX-80V – 250 PSI 45.0 gal (170.3 L) 20.00" 38.00" 215 lb
    AX-100V – 175 PSI 60.0 gal (227.1 L) 20.00" 49.00" 193 lb
    AX-100V – 250 PSI 60.0 gal (227.1 L) 20.00" 49.00" 254 lb
    AX-120V – 175 PSI 70.0 gal (265.0 L) 24.00" 46.00" 285 lb
    AX-120V – 250 PSI 70.0 gal (265.0 L) 24.00" 46.00" 378 lb
    AX-144V – 175 PSI 80.0 gal (302.8 L) 24.00" 49.00" 295 lb
    AX-144V – 250 PSI 80.0 gal (302.8 L) 24.00" 49.00" 390 lb
    AX-180V – 175 PSI 90.0 gal (340.7 L) 24.00" 52.00" 311 lb
    AX-180V – 250 PSI 90.0 gal (340.7 L) 24.00" 52.00" 410 lb
    AX-200V – 175 PSI 115.0 gal (435.3 L) 24.00" 66.00" 358 lb
    AX-200V – 250 PSI 115.0 gal (435.3 L) 24.00" 66.00" 473 lb
    AX-240V – 175 PSI 140.0 gal (530.0 L) 24.00" 78.00" 398 lb
    AX-240V – 250 PSI 140.0 gal (530.0 L) 24.00" 78.00" 525 lb
    AX-260V – 175 PSI 158.0 gal (598.1 L) 30.00" 63.00" 650 lb
    AX-260V – 250 PSI 158.0 gal (598.1 L) 30.00" 63.00" 858 lb
    AX-280V – 175 PSI 211.0 gal (798.7 L) 30.00" 81.00" 827 lb
    AX-280V – 250 PSI 211.0 gal (798.7 L) 30.00" 81.00" 1090 lb

    Dimensions in inches. Dimensions and weights are for reference only.

    Design & Submittals

    Warranty

    Covered by the Armstrong Fluid Technology manufacturer's warranty.

    Installation, Maintenance, Parts Kits & Manuals

    Need help sizing an expansion tank? call (416) 236-2338 or email sales@bramhambros.com

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