Glass tube rotameters for water and air, available in DN15 to DN50 sizes. It has a wide flow range with 2.5 accuracy class and work from 0°C to 120°C. Great for chemical plants, labs, food, pharma, paper, and environmental use. 

Specification

Note:

1. The pressure of the fluid entering the flowmeter is at least twice the pressure loss for liquids and must be more than 5 times the pressure loss for gases.
2. The accuracy class is 2.5, if you need 1.5, need additional notes.
3. If the required range is not in the table, please inquire. Some ranges can be customized.
4. For other liquids (e.g. alcohol, ammonia, etc.) or other gases (odor, ammonia, etc.), please select the corresponding range by converting according to the corresponding density.

Feature

• Accurate Calibration: Glass tube rotameter has direct reading scale, clear graduations, and factory-calibrated for precise measurement.
• Attractive Appearance: Smooth finish with refined coating, hex nut design for easy installation, and burr-free surface.
• Material Options: Standard carbon steel connectors included; optional 304 stainless steel connectors available.
• Clear Scale Display: Marked scale is easy to read and ensures accurate flow readings at a glance.

Dimension (unit: mm)

Note: Please contact us for other thread types.

Application

Widely used in chemical industry, light industry, pharmaceuticals, food, papermaking, environmental protection and metrology testing, scientific research and other departments to measure the flow of single-phase non-pulsating fluids (liquids or gases).

Tips: What is a glass tube rotameter and how does it work?

A glass tube rotameter is a type of variable area flow meter that measures the flow rate of liquids or gases. It works by allowing the fluid to pass through a vertical tapered glass tube, where a float rises or falls depending on the flow rate. The position of the float corresponds to a calibrated scale on the tube, providing a direct visual reading.