Product Overview‌

The ‌EFTEC gear flow meter‌ is a positive displacement flow meter designed for precise continuous/intermittent measurement of liquid flow rates in pipelines, particularly suitable for high-viscosity media such as:

Heavy oils

Polyvinyl alcohol (PVA)

Resins

Manufacturer: Shanghai Zanke Automation Co.

Technical Specifications‌

1. ‌Basic Parameters‌

Measurement Diameter‌: DN10–DN100

Power Supply‌: Not required

Display Type‌: Analog dial

Display Units‌: Tons/cubic meters (standard condition calibration)

2. ‌Performance Metrics‌

Accuracy Class‌: 0.5级 (Grade 0.5)

Repeatability‌: 0.03% (0.1% for specific models)

Turndown Ratio‌: 200:1 to 10:1 (size-dependent)

Flow Range‌: 0.13 GPH to 300+ GPM (¼" to 4" models)

3. ‌Environmental Tolerance‌

Temperature Range‌:

Medium: -10°C to +80°C

Ambient: 0°C to +50°C (IP65)

Pressure Rating‌: 1.6 MPa

4. ‌Output Options‌

Standard: Pulse output

Optional: 4–20mA analog signal

Key Advantages‌

Viscosity-Independent Accuracy‌

Maintains ±0.5% accuracy across 1–500,000 cP viscosity range.

Compact Installation‌

No upstream straight-pipe requirements; fits tight spaces.

Robust Construction‌

Monolithic MX-meter design from solid billets

Tungsten carbide bearings

OEM Flexibility‌

Available in PPS (polyphenylene sulfide) for corrosive media.

Working Principle‌

The meter utilizes two intermeshing gears within a precision-machined chamber. Each rotation displaces a fixed volumetric quantity ("standard volume"), with flow rate calculated via rotation count.

Application Fields‌

Industrial Processes‌

Hydraulic pump testing

Polyurethane foaming machines

Dual-screw extruders

Fluid Types‌

Category Examples

Fuels‌ Diesel, gasoline, heavy oils

Chemicals‌ Resins, polyols, isocyanates

Coatings‌ Paints, varnishes, adhesives

Compatible Media‌

Lubricants (gear oil, brake fluid)

Polymers (polyurethane, wax)

Printing inks/coatings

Solvents (alcohol, electrolytes)