Flowmeters

LZS PTFE series white glass Line Mount

LZS PTFE rotameter is a variable area flowmeter designed specifically for corrosive liquids and gases, featuring full PTFE (polytetrafluoroethylene) construction for exceptional chemical resistance. Operating on the float principle, it provides a direct visual indication of flow rate as the float rises and falls within a conically tapered flow tube.

This model is ideally suited for aggressive media such as acids, alkalis, strong oxidizers, and ultra-pure chemicals in chemical processing, semiconductor manufacturing, laboratories, and water treatment systems.

Features

• Measuring Principle: Variable area / float type (rotameter)

• Installation: Inline, vertical (flow direction: bottom to top)

• Materials:

  • Tube: Acrylic (AS/PC)

  • Float: ABS, stainless steel, or optional PTFE

  • Connection: PVC, ABS, or PP, with union, threaded (BSP/NPT), or flanged ends

• Flow Ranges & Sizes (cubic meter per hour)

  • 4m³/h, 6m³/h, 10m³/h, 16m³/h, 25m³/h, 40m³/h, 60m³/h, 90m³/h, 120m³/h, 150m³/h, 180m³/h.

• Connection Sizes (inches)

  • 1.25″, 2″,2.5″, 4″flg, 6″flg.

• Accuracy: ±4% of full scale

• Operating Pressure: ≤  (10 bar)

• Temperature Range: 0–100 °C (PTFE limit)

• Connection Sizes: DN15 to DN150

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Advantages

• Excellent corrosion resistance – suitable for strong acids, alkalis, and solvents

• No metal wetted parts, ideal for ultra-pure or hazardous fluid

• Visual flow indication without power supply

• Low maintenance, long service life

• Available in multiple tube lengths (short or long)

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  Applications

• Water treatment and purification
• Chemical processing
• HVAC and cooling towers
• Agricultural irrigation systems
• Laboratory or pilot-scale systems