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    SM SM 3d
    SM pumps are three screws pumps for industrial use at low and medium pressure (80 bar). SM pumps represent a reliable and low noisecomponent for applications where long life and low cost are required, as in home lifts and elevators. SM pump is a priming pump assembled into a pump body. The Three screws rotate inside the pump body and the design of the screws 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 on 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 screws 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 creates a sort of cavity that holds the fluid and drives it with an axial direction from the inlet to the outlet port. Motors can be submersible or dry motors. Immersion type motors are three-phase A.C. asynchronous motors directly connected to the pump, or with flange and clutch. Enclosure IP 00, form of construction B15, insulation class F. The oil temperature should not exceed 70°C.

    Types / Modelli Semi submersed - submersed / Semi sommerso - sommerso
    Available models / Modelli 20 - 25 - 32 - 40 - 45 - 55 - 60 - 70 - 80
    Connections / Connessioni NPT
    Shaft rotation / Rotazione albero Clockwise (from shaft end) for counter clockwise please contact Settima Destra, per rotazione sinistra si prega di contattare Settima
    Pump body / Corpo Aluminium / Alluminio
    Main screw / Vite centrale Steel / Acciaio
    Idler screws / Viti secondarie Cast Iron / Ghisa
    Filtration / Filtrazione Suction filter: from 250 µm / Filtro di aspirazione da 250 µm
    Flow / Portate Flow capacity from 8 to 1.200 L/min (3.300 rpm at 60Hz)
    Portate da 8 a 1.200 L/min (3.300 rpm at 60Hz)
    Operating pressure / Pressione 80 bar max / massimo 80 bar
    Temperature / Temperatura Up to 100° C / Fino a 100° C
    Viscosity / Viscosità From 10 up to 2.000 cSt / Da 10 a 2.000 cSt
    Speed / Velocità di rotazione From 500* up to 3600 rpm / da 500* a 3600 rpm
    Rotation / Rotazione Clockwise / Destra
    Acoustic emissions Emissioni acustiche From 58 to 77 dB (A) / Da 58 a 77 dB (A)
    *For lower speed please contact Settima.
    Per velocità inferiori contattare settima
  • Applications

    Lift


    Capabilities

    High Flow


    No Noise


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    Brochure

    »SM CATALOG ITA-ENG
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