magnetic float level switch / for liquids / stainless steel / rugged
B40 series



  • Technology:

    magnetic float

  • Medium:

    for liquids

  • Other characteristics:

    stainless steel, rugged

  • Process pressure:

    Min.: 11 bar (159.54 psi)

    Max.: 255 bar (3,698.46 psi)

  • Process temperature:

    Min.: -46 °C (-51 °F)

    Max.: 399 °C (750 °F)


The B40 External Cage Type Level Switch by Magnetrol is highly designed with a robust finish to provide a strong and reliable functionality for several users and operators. The switch is a float-actuated control ideally intended for use in high pressure service conditions. It is mainly available in ASME B31.1 construction. The switch is integrated with an operating principle wherein when the counter weighted float follows the liquid level changes, a magnetic unit is moved internally or externally unto the field of a switch-actuating magnet which is the main cause for a switch operation.