STN 30 - 40

  • STN 30 - 40, magnetic drive pump

    STN series single-stage magnetic drive centrifugal pumps are the close-coupled type with injection-moulded thermoplastic components (PP-GF or PVDF). The rare-earth magnets - Neodymium-Iron -Boron - offer a compact coupling that is efficient even with high-density liquids. The use of rotary PTFE/Carbographite and static PTFE/Ceramic bushings guarantees excellent value for money.

    On the other hand, the pure Silicon Carbide version allows use with liquids containing suspended solids (within the limits prescribed in the table) or particularly corrosive acids.

    Motion is transmitted by magnetic couplings, thus avoiding a mechanical connection between impeller and the driving part. This system guarantees maximum safety, reducing the risk of leakage to a minimum. Furthermore, the elimination of external transmission parts makes this series extremely compact, silent and safe even for inexperienced operators.

    Technical features

    Pump type Close-coupled horizontal centrifugal pump with tangential delivery
    Construction materials PP (polypropylene+glass) / ETFE / ETFE-FC
    Liquids handled Acids, bases, solvents
    Performances Q max = 30 m3/h H=24m
    Motors from 0.75 kW (gr. 80) to 5.5 kW (gr. 132)
    Max temperature from 0 °C to +80 °C
    Pressure ratings allowed PP from 0°C=PN 6 at 70°C=PN 4
    ETFE from 0°C=PN 4 to 80°C=PN 2
    Max viscosity 400 cSt max
    Pass solids Max concentration 2 % in weight
    Hardness 800 Vk
    Size max. 150 µm
    Hydraulic performances