SMTU
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  • SMTU

    FOR THE USA MARKET ONLY

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    SMTU SMTU 3d
    SMTU pumps are three screw pumps for industrial use at low and medium pressure (1.160 PSI). SMTU pumps represent a reliable and low noise instrument for applications where a long life pump at low cost is required as in home lifts and elevators following the US regulations. SMTU pump is a priming pump assembled into a pump body. The three screws rotate inside the pump body and their design avoids any axial load. The functional pressure develops some tolerance between the balancing piston of the main screw and the surrounding body. This creates a balancing hydrodynamic force for the screws and, at the same time, lubricates and cools down the sealing parts. The torque needed to move the lateral screws is transmitted hydraulically by the pumped fluid. This means that the screws rotate with no possibility of wearing.

    The high quality of screw manufacturing ensures a very low level of acoustic emissions and pulsation.

    The geometric design of the three screws creates sealing chambers. During the rotation of the screws, the main one produces a sort of cavity that holds the fluid and drives it with an axial direction from the inlet to the outlet port.


    TYPES Dry – submersed
    MODELS 20 - 25 - 32 - 40 - 45 - 55 - 60 - 70 - 80
    CONNECTIONS NEC SAE 3000
    PUMP BODY Aluminium
    MAIN SCREW Steel
    IDLER SCREW Cast iron
    FILTRATION Suction filter: from 100 µm
    FLOW Flow capacity from 2,5 gpm to 317gpm (1.750 rpm at 60Hz)
    OPERATING PRESSURE 1.160 PSI max.
    TEMPERATURE Up to 230°F
    VISCOSITY From 46 to 9.200 SSU
    SPEED Up to 3.600 rpm
    ROTATION Clockwise (from shaft end)
    ACOUSTIC EMISSIONS From 58 to 77 dB(A)
  • Applications

    Lift


    Lube


    Capabilities

    No Noise


    High Flow


    High Viscosity


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