Mobrey Water Level Controller Inquiry

The Mobrey Water Level Controller is a critical safety and control device widely used in industrial steam boilers and heaters to ensure precise monitoring and regulation of boiler drum water levels. This instrument operates on the proven principle of a float mechanism combined with robust electrical switching, providing a reliable signal for pump operation, alarm, or direct cut-off of the burner in case of unsafe water levels.

Designed for continuous operation under high pressure and temperature conditions, Mobrey controllers are known for their rugged construction, simple mechanism, and long service life. They play a vital role in protecting boilers from dry running, overheating, and tube failures, ensuring safe operation and extended equipment life.

Mobrey controllers can be installed as single, dual, or multiple element systems, depending on boiler capacity and automation requirements. They are IBR-approved and comply with international safety standards, making them a trusted choice for power plants, process industries, and boiler manufacturers.


Technical Highlights

  • Operating Principle: Float-operated mechanism linked to a switch assembly for electrical control signals.
  • Application: Used for low water level cutoff, high water level alarm, and feed pump control in steam boilers.
  • Construction: Heavy-duty cast/forged steel body with corrosion-resistant float and stainless steel internals for long life.
  • Pressure Rating: Suitable for medium to high-pressure boilers, typically up to 60 kg/cm² (varies with model).
  • Temperature Range: Withstands boiler drum operating temperatures up to 300°C or higher.
  • Switching Mechanism: Snap-action micro switches / mercury switches for precise on-off operation.
  • Electrical Ratings: Compatible with standard industrial control circuits (AC/DC).
  • Mounting Arrangement: Flanged connections for direct installation on boiler drum or chamber.
  • Compliance: IBR-approved, ISO-certified, and designed in accordance with boiler safety regulations.
  • Maintenance: Simple design allows easy inspection and replacement of internal parts.
  • Safety Features:
    • Automatically shuts down burner in case of low water level.
    • Provides alarm signal for high or low level conditions.
    • Prevents dry firing and overheating, thus protecting boiler tubes.
    • Ensures safe and efficient boiler operation with minimal manual supervision.