What is the difference between glass rotameter and metal Rotameter

Glass rotameter is a flow measuring instrument that can measure liquid and gas. Compared with metal rotameter, both of them can measure liquid or gas. The biggest difference is the diameter between them. The diameter of metal rotameter is much larger than that of glass rotameter.

Diameter of glass rotameter

From the current manufacturing process, the glass rotameter can achieve the measurement caliber of DN100 and below.

Diameter of metal Rotameter

The diameter of metal rotameter can reach DN350 and below, which is much larger than that of glass rotameter.

The above are the main differences between the glass rotameter and the metal rotameter. Theoretically, these two types of flowmeter are used in the working condition of small flow measurement.