BNA bypass level indicator

The Type BNA bypass level indicator consists of a tube mounted on the side of a container, which by means of 2 connections (flanges, threaded connections or welded ends) is in permanent communication with the container. According to the principle of communicating vessels, the level in the tube always corresponds to the level of the tank. In the tube, a cylindrical float with an integrated permanent magnet follows the level of the liquid and acts, without contact, on a magnetic indicator fixed to the tube. In this indicator are placed every 10 mm red/white plastic or ceramic rollers, with magnetic rods inside.

As the float with its permanent magnet passes near these magnetic rollers, these two-color swivel rollers rotate one after another through 180° on their axis. These are rotated from white color to red color when the level goes up and from red color to white color when the level goes down.
Thus, the bypass level indicator can indicate, without any energy source, the level of a tank by a clearly visible red bar.

Applications:

• Continuous liquid level measurement with visual level indication without auxiliary energy
• Level measurement based on liquid height or density
• Custom fixtures and corrosion resistant materials provide solutions for most applications
• Chemical, petroleum, natural gas, offshore, shipbuilding, machine building, energy installations, power stations
• Wastewater treatment, food and beverage industry, pharmaceutical industry

Features:

• Specific solutions for various processes
• Usage limits:
  - Operating temperature: T = -160 ... +450 °C
  - Operating pressure: P = vacuum up to 420 bar
  - Minimum density: ρ ≥400 kg/m3
• Variety of process connections and materials
• Externally mounted level sensor or magnetic switch (option)
• Explosion-proof version (optional)