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Liquid level measurement

Our constant flow regulators are widely used to measure liquid level both in an open and a vented tank. Measuring the liquid level with a bubble tube system is a simple, accurate and a low cost method.

Constant and accurate measuring

A bubble tube system is a simple, accurate, reliable and a low cost method of measuring liquid level in an open or a vented tank.

A low but constant flow of air or an inert gas is purged through a dip tube of which the open end is located near the bottom of the tank. The flow needs to be just enough to overcome the hydrostatic pressure produced by the liquid level and to release a constant stream of bubbles from the open end of the dip tube.

As long as the flow remains constant and uninterrupted the liquid level in the tank is proportional to the pressure inside the dip tube. A low cost pressure or a differential pressure transmitter is used to detect the variation in this pressure giving an accurate liquid level reading.

A water purge is used instead of air in level measurements of higher consistency mediums or contaminated liquids (e.g. pulp level in pump stand pipes).

Benefits

  • Kytola constant flow regulators together with a variable area flow meter offer a simple, reliable and a low cost method of providing a constant flow of gases or liquids in a level measurement application where the backpressure varies
  • Kytola constant flow regulators are easy to install and service.

Our solutions are applicable for

  • Pulp & Paper industry
  • Metallurgical industry
  • Food industry
  • Water treatment plants
  • Ships
  • Any industry where there is a need for an accurate but cost effective level measurement of liquid materials in a tank
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