Insertion Electromagnetic Flowmeter For Sewage And Tap Water Measurement
An insertion electromagnetic flowmeter is a type of instrument that measures the flow of conductive liquids by inserting a sensor through an opening in the pipe. It is particularly suitable for large-diameter pipes, situations where installation during flow interruption is difficult, and industrial environments containing a small amount of solid particles or high-viscosity media.
Easy installation and low cost (the greatest advantage)
- Non-interruption installation: The "pressure tapping" technology is adopted, allowing installation without production halt or process interruption. For large pipelines, this avoids significant production loss.
- Strong adaptability to pipe diameters: One model of the insert-type flowmeter can cover a very wide range of pipe diameters (e.g., DN80 to DN3000), offering excellent cost performance. The larger the pipe diameter, the more obvious the cost advantage over pipe-type flowmeters.
- Minimal pressure loss: The sensor rod offers minimal obstruction to the fluid flow, generating almost no additional pressure loss and achieving good energy-saving effects.
- Convenient maintenance: The sensor rod can be pulled out from the pipeline for inspection or replacement by closing the ball valve without system shutdown.
Core Performance Indicators
| Parameter Category |
Standard Model |
High Precision Model |
Anti-wear and Anti-corrosion Model |
| Diameter Adaptation Range |
DN100 - DN3000 |
DN150 - DN2000 |
DN100 - DN1500 |
| Accuracy Grade |
±1.0% - ±2.5%FS |
±0.5% - ±1.0%FS |
±1.0%FS |
| Medium Conductivity |
≥5μS/cm |
≥5μS/cm |
≥10μS/cm |
| Flow Velocity Range |
0.1 - 10m/s |
0.05 - 10m/s |
0.1 - 8m/s |
| Temperature Range |
-40 - 180℃ |
-40 - 200℃ |
-20 - 150℃ |
| Working Pressure |
≤10MPa |
≤16MPa |
≤10MPa |
| Protection Grade |
IP67/IP68 |
IP68 |
IP68 |
Insertable vs. Pipeline: How to Choose?
| Characteristics |
Insertable Electromagnetic Flowmeter |
Pipeline Electromagnetic Flowmeter |
| Accuracy |
Low (±1.0% ~ ±2.5%) |
High (±0.3% ~ ±0.5%) |
| Cost |
Low (especially for large diameters) |
High (cost increases sharply with diameter) |
| Installation |
Convenient, can be installed without interrupting flow |
Complex, requires pipeline disconnection |
| Diameter |
Large (DN80 and above) |
Full coverage of large, medium and small diameters |
| Maintenance |
Convenient, can be maintained without interrupting flow |
Requires shutdown for maintenance |
| Applicable pipe materials |
Only conductive pipes |
Any pipe (grounding required) |
| Application positioning |
Process monitoring, energy management, auxiliary measurement for large flow trade handover |
Accurate measurement, trade settlement, formula control |
Summary
The insertable electromagnetic flowmeter is an economical and practical flow measurement solution. It sacrifices some accuracy in exchange for excellent installation convenience and cost-effectiveness on large-diameter pipes.
When making a choice, please keep in mind its positioning: it is a "powerful tool" for flow monitoring and management of large-diameter pipes, rather than a "ruler" for high-precision trade settlement. If your application scenario does not have high requirements for accuracy, but involves large-diameter pipes, difficult installation and a limited budget, then the insertable electromagnetic flowmeter is an extremely ideal option.
