LZS Flow Meter – Cost-Effective Flow Measurement Solution

In industrial systems, accurate flow control is essential to ensure performance and operational safety. The LZS flow meter offers a simple, visual, and cost-effective solution, featuring a durable design and stable operation across various working conditions.

1. General introduction of LZS flow meter

LZS flow meter is a plastic tube type variable area flow meter (float type), widely used in liquid flow measurement systems such as water, chemicals, and treatment solutions.

The product has a simple design, easy visual observation, and is especially suitable for applications requiring low cost while still ensuring high accuracy and durability.

2. Working principle of LZS flow meter

The LZS flow meter operates based on the Variable Area principle:

• The fluid flows from bottom to top inside the tapered tube
• The float inside will rise according to the flow rate
• When the lifting force balances gravity → the float stabilizes at a position
• The flow value is read directly on the scale

👉 Advantages of this principle:

• No power supply required
• Direct visual indication
• Stable operation, low failure rate

3. Product structure

The LZS flow meter consists of the following main components:

• Tapered tube (Tube): creates variable flow area
• Float: moves according to flow rate
• Scale: displays flow rate directly
• Connector: pipeline connection (threaded or socket)
• O-ring: ensures leak-tight sealing
• Top/Bottom caps: fix and protect the structure

The transparent design allows users to easily observe the operating condition.

4. Technical specifications and measuring range

The LZS flow meter is available in multiple models from DN15 to DN65, meeting various demands:

• Flow range:
  • Minimum: from 5 l/h
  • Maximum: up to 60 m³/h
• Accuracy: ±4%
• Working temperature: 0 – 60°C
• Working pressure: ≤ 0.6 MPa

👉 Flexible design with:

• Long tube / short tube types
• Multiple measuring ranges for each size

5. Materials and environmental resistance

The LZS flow meter is made from engineering plastics:

• Tube: AS (Acrylic)
• Connector: PVC
• Float: ABS
• Seal: chemical-resistant rubber
• Other parts: PE

👉 Advantages:

• Chemical corrosion resistance
• Lightweight
• Lower cost than metal
• Suitable for water and light chemical environments

6. Outstanding advantages of LZS flow meter

• Simple design, easy to use
• No power supply required
• Low investment cost
• Easy installation and maintenance
• Direct and easy-to-read indication
• Good corrosion resistance
• Suitable for many industrial environments

7. Practical applications in industry

The LZS flow meter is widely used in:

• Water treatment systems
• Chemical industry
• Cooling systems
• Food industry (non-high hygiene fluids)
• HVAC systems
• Industrial production lines

8. Installation and operation guide

To ensure accurate operation:

• Install in vertical position (flow from bottom to top)
• Ensure stable flow, avoid vibration
• Avoid installation at excessively high pressure points
• Clean the pipeline before installation

👉 During operation:

• Observe float position
• Read value at corresponding scale
• Perform periodic inspection to ensure accuracy

9. Notes for selection and operation

• Select appropriate measuring range based on actual flow
• Identify fluid type (water, chemical, etc.)
• Check working temperature and pressure
• Choose suitable DN size for the system
• Avoid using with dirty fluids or large particles

10. Conclusion & recommendation

The LZS flow meter is an ideal solution for systems requiring simple – efficient – cost-saving flow measurement. With durable design, ease of use, and good corrosion resistance, the product is suitable for various industries.

👉 If you are looking for a flow measurement device that:

• Does not require power
• Easy to install
• Cost-effective

The LZS flow meter is a reliable choice.