Vertical Float Type Level Switch
KF-300/KFE-3000 Series

Various float sizes and materials cover many different applications.

Catalog Download

Features

  • Reed switch makes 10 million times use possible.
  • Applicable to many different liquids as SUS304 (SUS316, SUS316L) and corrosion-resistant resin are used for the wetted surface.
  • Lots of operations are selectable. Multiple points are detectable by adding the number of reed switches.
  • Not affected by moisture, gas, dust etc.
  • Easy handling with simple structure.
  • Exd II BT4 certified flame proof available.
    (KFE-3000 series)

Operating Principles

Float contains magnet and the stem contains reed switch. UP/DOWN movement of the liquid surface makes the reed switch ON/OFF with the magnet inside the float. The stoppers at the top and the bottom of the float limit the movement range and keep the self holding of the contact operation.
ModelKF-32□KF-33□NKF-35□KFE-3000
ApplicationSmall-caliber Low Density LiquidCorrosive Liquid
General Liquid		Small-caliber Corrosive LiquidExplosion-proof
Pressure490kPa196kPa196kPa490kPa
Temperature100℃50℃50℃100℃
Process connectionOver JIS5K50A/SSOver JIS5K65A/PVCOver JIS5K50A/PVCOver JIS5K40A/SS
Specific gravity of liquidOver 0.63Over 0.75Over 0.89Over 0.63
Floatφ51x60L/SUS316Lφ60x95L/PVCφ48x70L/PPφ40x50L/SUS316L
Stem304SS、316SS、316LSSPVCPVCSUS304
Enclosure ratingIP67IP67IP67IP67

Product Lineup

In addition to the above, various specifications are available.
For more information, see respective catalogs or contact us by phone or mail.

  • KF-32□

    Small-Caliber Type

    KF-32□

    Small-Caliber Type

    • Contact capacity 60VA (100VA optional).
    • SPDT contact is available.
    • Independent contact is available.
    • Contact point is fixable at 50mm min. from flange surface or stem tip.
    • Mininum contact points distance is 90mm.
    • Process connection screw over 2'' is available.

  • KF-33□N

    For Corrosive Liquid

    KF-33□N

    For Corrosive Liquid

    • Contact capacity 60VA (100VA optional).
    • SPDT contact is available.
    • Independent contact is available.
    • Contact point is fixable at 100mm min. from flange surface or stem tip.
    • Contact points distance 130mm min.

  • KF-35□

    Small-Caliber Type
    for Corrosive Liquid

    KF-35□

    Small-Caliber Type
    for Corrosive Liquid

    • Contact capacity 60VA (option 100VA).
    • SPDT contact is available.
    • Independent contact is available.
    • Contact point is fixable at 80mm min. from flange surface or stem tip.
    • Contact points distance 100mm min.
    • Wetted part material all PP is available.

  • KFE-3400

    Explosion-Proof Type

    KFE-3400

    Explosion-Proof Type

    • Contact capacity 60VA (option 100VA).
    • Contact point is fixable at 50mm min. from flange surface or stem tip.
    • Contact points distance 80mm min.
    • Cable gland is available as an option.