The LZB-3WB series is calibrated specifically for air (gas models) or pure water (liquid models) and must only be used with these respective media. Using other substances—such as mixed gases, hydrogen, ammonia, chlorine, argon, methanol, or acetone—can lead to inaccurate readings or irreversible damage and safety risks. For special media, please provide the required flow range and contact us for a customized solution.

 

1.NOTE

When selecting the LZB-3WB Series Glass Tube Rotameter, please confirm the following before placing an order:

Flow Rate Range: Based on your specific requirements

Medium: Liquid or Gas

Corrosion Resistance: Whether a corrosion-resistant model is needed

Available Flow Ranges:

• Gas:
  6–60mL/min | 10–100mL/min | 16–160mL/min | 20–200mL/min | 25–250mL/min | 30–300mL/min | 40–400mL/min | 50–500mL/min | 60–600mL/min | 0.1–1L/min | 0.15–1.5L/min | 0.2–2L/min

• Liquid:
  0.4–4mL/min | 0.6–6mL/min | 1–10mL/min | 2.5–25mL/min | 4–40mL/min | 6–60mL/min | 10–100mL/min

Optional Accessories:
Various connectors (quick-fit, push-in, barbed, etc.), fluorine rubber seals, PU tubes, PE tubes, stainless steel hollow tubes, silicone tubes, ferrule fittings, clamps, and PTFE tubes.

Important:
Due to the limitations of available product options, if you require a flow range outside of the listed specifications, please contact us directly for further assistance and customization options.

2.Parameters

Parameter	Description
Model Series	LZB-3WB (F)、LZB-4WB (F)、LZB-6WB（F)、LZB-10WB (F)
Diameter	DN3~DN10
Measurement Range	Water: 0.4~1.6L/min; Air: 6~45L/min
Accuracy	2.5%, 4%, 6%
Max Pressure	0.2MPa
Temperature	≤120°C
Connection Options	Hose, Metal Tube, Flange (GB/T9119-2000)

3.Features

Durable Stainless Steel Design
Made with detachable stainless-steel connections for long-term reliability.

 

Adjustable Flow Control
Convenient adjustment knob for precise flow management.

 

Clear Scale Readings
Easy-to-read scale for accurate and quick measurements.

 

Versatile Accessories
Includes options like quick-connect fittings, PTFE tubes, and silicone hoses.

4.Applications

Perfect for measuring air or pure water in laboratories, chemical plants, and industrial systems.

5.FAQs

Q: Can this flow meter measure gases other than air?
A: No, this meter is calibrated for air only. Using other gases may cause inaccuracies or damage.

 

Q: What should I do if the rotor gets stuck?
A: Reverse the flow to clear debris or dry it in a 35°C oven if moisture is present.

 

Q: How can I ensure measurement accuracy?
A: Ensure the actual flow rate stays within 1/2 to 2/3 of the meter's maximum range.