Ultrasonic Flow Meters | Smart cities, industrial water monitoring | - Material: Plastic (HDPE, ASTM D638) ▲ Metal (Stainless Steel 316, ASTM A276) in Advanced - Pressure: 1.6MPa (ISO 9001) ▲ 2.5MPa in Advanced - Protection: IP68 (IEC 60529) - Connection: Flanged (ANSI B16.5) - Tech: Time-of-Flight (TOF, IEC 61431) | ▲ Non-invasive, wireless LoRaWAN/NB-IoT connectivity High accuracy (±1% of reading) Resistant to corrosion (plastic) | Higher upfront cost Requires clean fluid (no solids) Sensitive to temperature fluctuations |
Electromagnetic Flow Meters | Wastewater treatment, slurries | - Material: Stainless Steel (ASTM A240) - Pressure: Up to 4MPa (ISO 1043) - Protection: IP68 - Tech: Electromagnetic induction (IEC 60044-8) | Measures conductive fluids (e.g., sewage) No moving parts High flow rate tolerance (0–10 m/s) | Ineffective for non-conductive fluids (e.g., oils) Electrical noise interference risk |
Turbine Flow Meters | Oil/gas pipelines, clean fluids | - Material: Brass/Stainless Steel (ASTM A213) - Pressure: 10MPa (ISO 14692) - Protection: IP55 - Tech: Mechanical turbine rotation | Cost-effective for high-volume flows Direct flow measurement (ISO 3095) | Moving parts wear (requires frequent maintenance) Clogging risk with particulates |
Positive Displacement | Fuel metering, viscous fluids | - Material: Cast Iron (ASTM A48) - Pressure: 15MPa (ISO 10700) - Protection: IP67 - Tech: Gear/piston mechanism (ISO 3094) | High accuracy at low flows (±0.1%) No pressure loss | Invasive design High maintenance for viscous fluids Not suitable for high-velocity flows |
Vortex Flow Meters | Steam/gas in industrial plants | - Material: Stainless Steel (ASTM A240) - Pressure: 25MPA (ISO 1043) - Protection: IP65 - Tech: Vortex shedding (ISO 12261) | Robust for harsh conditions No moving parts Wide rangeability (1:50 ratio) | Pressure drop across sensor Accuracy degrades with low flow rates or high viscosity |
Diaphragm Flow Meters | Residential water billing | - Material: Brass (ASTM B28) - Pressure: 1.0MPa (ISO 9001) - Protection: IP68 - Tech: Diaphragm oscillation (ISO 4064) | Low cost, durable for low-pressure residential use Direct volume measurement | Mechanical wear over time Limited to low-pressure (<2MPa) applications Less accurate for high flows |