Float Operated External Cage Magnetic Level Switch

Float Operated External Cage Magnetic Level Switch


Levcon offers Float Operated External Cage Magnetic Level Switch. MLS series float operated magnetic level switches are ideally designed for liquid level signalisa-tions in vessels under pressure and temperature. The Levcon Group is one of the leading and major manufacturers/exporters of a wide range of process control instruments and valves in India with experience of more than 35 years. The company also offers float type open channel flow totaliser, thermal dispersion flow switch, ultrasonic flow meter, paddle wheel flow meter, capacitance type level indicators, etc.

Level alarms & controls in power plants, petrochemical plants & refineries, chemical plants, paper mills, sugar mills, ships, etc. (wherever liquid flows in and out of tanks / pressure vessels / sumps).

  • Materials of Construction
    • Float: SS 304/ SS 316/ Monel/PVC/Titanium; ECTFE/FEP Coated (Optional).
    • Cage: MS/ CS/ SS 304/ SS 316, PP/PVC; ECTFE/ FEP Coated/Lined, Rubber lined.
    • Switch Box & Cover: Aluminium / Stainless Steel / CI.
    • Cooling Fins: MS/Aluminium/SS304 (SS304/ MS Cooling Fins above 400°C.
  • Enclosure Class: Weatherproof to IP66 or Weatherproof & Flameproof (to Gas Groups IIA, IIB or IIC as per IS 2148: 2004).
  • Vessel Connection: Top side and Bottom or Bottom side – min 25 NB (40 NB for extra high pressure preferred).
  • Pressure Rating: Up to 200 Kg/Cm² (for higher rating, please consult us).
  • Temperature Rating: 400°C max. (For higher rating, please consult us).
  • Specific Gravity: 0.7 - 1.2. (For other values please consult us).
  • Switch Carriage: Standard type, 2-Magnet type or 3-Magnet type.
  • Contact Rating
    • Micro switch: 5A at 230 V AC / 4A at 24 V DC (Contact us for current rating of special micro switches).
    • Mercury Switch: 5A at 230V AC/5A at 24V DC. (Hermetically Sealed)
    • 3 – Magnet Type: 2A at 230 V AC/ 4 A at 24 V DC.
  • Cable Entry: ½”, ¾” NPT (F) as standard, other types on request. In case of non-flameproof enclosures cable entries can be 2/3 or 4.
  • Differential
  • Standard type: 12 mm ± 2 mm
  • Standard type with horizontal cage: 15 mm ± 2 mm
  • 2 Magnet type: 12-25 mm ± 2 mm
  • 3 Magnet type: 17 mm ± 3 mm
    • Standard 1-Magnet type switch assembly for standard applications.
    • 2-Magnet type switch assembly for adjustable differential (12-25 mm) and vibrating conditions.
    • 3-Magnet type switch assembly for multiple level signalisation.
    • Adjustable switch operating level by adjustment of switch carriage position (with longer switch box & 2-magnet or 3-magnet type switch mechanisms).
    • Two floats in tandem with separate extension rods and sleeves for level signalizations at two different levels (for large difference between high & low level’s and in case of flameproof enclosures).
    • External cage can be welded type (lighter in weight) to ensure less chance of leakage or bolted type to ensure easier opening of the same for float replacement.
    • Horizontal cage type for high pressure (also low sp.gravity) applications (with counter balance weight for float).
    • Supplied with cooling/ radiating fins for high/ sub-zero temperature applications.
    • Guide/ stilling pipe in case of turbulent applications to ensure free float movement (for direct top mounted version).
    • Switch box rotatable.
    • Standard/ hermetically sealed/ hgh temperature microswitches or hermetically sealed mercury switches.
    • Sliding sleeve design for getting higher differential.
    • IBR/ LLOYDS certification (if required).
    • CIMFR Certification, CCOE approval, BIS licence for flameproof level switches under gas Gr.IIA, IIB or IIC (IS2148:2004). 3 – magnet type is weatherproof only

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