Overview:

● Measurement Type: Variable area flow measurement using a float inside a glass tube

● Output Options: Direct visual reading

● Corrosion-Resistant Models: Available for aggressive fluid applications

● Applications: Suitable for industries requiring precise flow monitoring of transparent liquids and gases, including chemical processing, pharmaceuticals, and environmental monitoring

Key Technical Specifications:

Standard Models

● Nominal Diameters (DN): 25mm, 40mm, 50mm, 80mm, 100mm

● Operating Pressure: ≤0.6 MPa (DN ≤ 50mm), ≤0.4 MPa (DN ≥ 80mm)

● Accuracy: ±1.5%

● Turndown Ratio: 1:10 (except DN80 and DN100, which also support 1:5)

● Measuring Range:

   o Liquids:

● DN25: 0.04–0.4 m³/h to 0.1–1 m³/h

● DN50: 0.4–4 m³/h to 1–10 m³/h

● DN100: 5–25 m³/h to 12–60 m³/h

   o Gases:

● DN25: 1–10 m³/h to 2.5–25 m³/h

● DN50: 10–100 m³/h to 16–160 m³/h

● DN100: 120–600 m³/h to 200–1000 m³/h

Corrosion-Resistant Models

● Nominal Diameters (DN): 15mm, 25mm, 40mm, 50mm, 80mm, 100mm

● Operating Pressure: ≤0.6 MPa (DN ≤ 50mm), ≤0.4 MPa (DN ≥ 80mm)

● Accuracy: ±4% (DN15), ±2.5% (DN ≥ 25mm)

● Turndown Ratio: 1:10 (except DN80 and DN100, which also support 1:5)

● Measuring Range:

   o Liquids:

● DN15: 0.016–0.16 m³/h to 0.04–0.4 m³/h

● DN50: 0.4–4 m³/h to 0.6–6 m³/h

● DN100: 5–25 m³/h to 8–40 m³/h

   o Gases:

● DN15: 0.25–2.5 m³/h to 0.6–6 m³/h

● DN50: 10–100 m³/h to 16–160 m³/h

● DN100: 120–600 m³/h to 200–1000 m³/h

Material Composition

Standard Models

● Glass Tube: High-borosilicate glass

● Base: Cast iron with chemical-resistant rubber lining (DN15–DN40) or cast iron with epoxy coating (DN50–DN100)

● Float & Guide Rod: Stainless steel (1Cr18Ni9Ti)

● Sealing Material: Acid- and alkali-resistant rubber

Corrosion-Resistant Models

● Glass Tube: High-borosilicate glass

● Other Wetted Parts: PTFE (polytetrafluoroethylene) and F46 diaphragm

Note:

● Custom models with stainless steel components (1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, or 316L) are available upon request.

● Special configurations can be made based on user requirements, including high-accuracy corrosion-resistant models.

● For DN ≤ 10mm, full stainless steel corrosion-resistant versions can be manufactured upon request.