Side Mount vs. Top Mounted Level Instrument
What should be considered when deciding whether a level device (transmitter or switch) should be top or side mounted with an external cage?
Top mounting means that the sensor or measuring element of the level gauge is inserted into the container or tank from above. Side mounting with an external cage means that the sensor or measuring element is integrally installed in an external cage prefabricated by the manufacturer.
The price of the external cage leveler is higher than the top mount type. This is due to the cost of the cage, in addition for a special material such as Duplex Stainless Steel. However, an external cage level gauge may have an isolation valve installed between the tank and the cage. This arrangement allows maintenance of the device without the need to shut down the process. Therefore, an external cage level measurement tool is preferred in most applications.
In some cases, a top mount tool is used, such as:
A buried ship because it has no side access.
A semi-submersible tank such as a caisson.
A liquid that can change properties/form due to temperature change and the use of steam or electrical auxiliary heating is not possible.
.png)
.png)
No comments:
Post a Comment