Expansion and Pump Tanks

    • Series of pump tanks and potable & hydraulic expansion tanks
    • Volumes from 2 – 115.9 gallon

    Pump tank

    • Non-corrosive metal air valve
    • 100 PSI working pressure
    • Multiple head construction provides added structural strength and more capacity within the same diameters.
    • Interior powder coating is permanently bonded to the tank shell to provide the ultimate protection on the water side of the tank.
    • Durable butyl rubber parabolic diaphragm ensures long life and prevents rubbing on tank wall or rolling over on itself.
    • Positive lock retention system ensures quality controlled compression in the diaphragm. The connection eliminates loss of air or water leaks in the tank.
    • Electrostatically applied powder coated exterior. Tough powder coating provides maximum resistance to sunlight (UV) and is undercoated with zinc phosphate for the highest corrosion resistance.
    • No-weld guard steel base

    Potable & hydronic expansion tank

    • Drawn steel construction
    • Heavy duty butyl rubber diaphragm
    • Maximum working pressure 150 PSI – potable only
    • 100 PSI max – hydronic only
    • Powder coated interior and fitting
    • Drawn steel construction

    Sample specification

    The tank(s) shall be A. O. Smith model no PM________ or an approved equal. Tanks(s) shall be rated for 100/150 psi working pressure. Vessel shall be internally coated for corrosion protection. A durable butyl diaphragm will ensure long working life. The complete product will be NSF 61 certified and listed.

    NSF certified

    Expansion and Pump Tanks

    TW

    TW

    Pump expansion vessels

    PM

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