Electromagnetic Flowmeters in Plumbing Flow Test Benches

Flow testing is a fundamental and critical step in the factory inspection of plumbing products, including faucets, angle valves, mixing valves, and fittings. Accurate and repeatable flow measurements directly impact product performance evaluation and ensure consistent quality.

Leveraging mature electromagnetic measurement technology, Micro Sensor provides flowmeter solutions tailored for plumbing test benches, delivering reliable and trustworthy data to support precise product inspections.

On-site Installation at a Plumbing Flow Test Bench

Key Measurement Requirements

Plumbing flow test benches typically use clean water as the test medium to verify rated flow and flow deviations. These tests have several defining features:

 ・Frequent low-flow conditions that demand highly stable measurements 

・Batch testing requiring strong data repeatability

・Fast test cycles that require rapid instrument response 

・Integration with PLC or supervisory systems for automated data acquisition

Advantages of MICROSENSOR Electromagnetic Flowmeters

High Accuracy and Repeatability

Based on Faraday’s law of electromagnetic induction, these flowmeters have no moving parts, ensuring high accuracy and long-term stability. They can accurately reflect flow differences between products under the same conditions, meeting the strict consistency requirements of factory inspections.

Standard accuracy: ±0.5%

High-precision option: ±0.3%

Zero Pressure Loss Design

The flowmeter’s internal design has no throttling elements, avoiding additional pressure loss and preserving the true flow characteristics of the tested products.

Outstanding Low-Flow Performance

Optimized excitation and signal processing allow stable and continuous measurement even at low flow rates, making it ideal for fine-flow testing of faucets, angle valves, and similar plumbing components.

Easy Integration

Supports multiple industrial standard outputs, allowing seamless connection to test bench control systems for automated data logging and evaluation, improving overall testing efficiency.

Recommended Models and Key Specifications

・Nominal Diameter: DN10 / DN15 / DN20 / DN25

・Measured Medium: Tap water, deionized water

・Accuracy: ±0.5% (optional ±0.2%)

・Flow Rate Range: 0.3–10 m/s

・Lining Material: Polyurethane / PTFE

・Electrode Material: 316L Stainless Steel

・Output Signal: 4–20 mA + Pulse

・Communication: RS485 (Modbus RTU)

・Power Supply: 24 VDC\

・IP rating: IP65

Benefits for Test Bench Manufacturers

・Stable and reliable data, ideal for continuous batch testing

・Easy installation and maintenance with no wear parts, reducing operating costs

・Proven solution widely adapted to plumbing flow test benches

Conclusion

Flow measurement in plumbing test benches is more than a single parameter—it is a key indicator of product quality. Micro Sensor electromagnetic flowmeters, with high accuracy, zero pressure loss, and strong low-flow stability, provide a mature, reliable domestic solution for factory testing, helping the plumbing industry enhance testing efficiency and overall quality control.