Portable Flow Meter for Large-Pipe Handover Acceptance and Flow Verification

Portable Flow Meter for Large-Pipe Handover Acceptance and Flow Verification

When a new or modified large-bore industrial pipeline is handed over, owners and contractors need an independent flow check to prove the line and pumps meet specification. The YF-P2 portable clamp-on meter provides high-accuracy verification on very large pipes without any intrusive work.

The challenge

  • Acceptance tests demand higher accuracy than routine monitoring.
  • Large diameters up to several metres make inline metering impractical.
  • Verification is temporary, so a permanent meter is not justified.
  • Results must be readable and exportable for handover records.

The solution: YF-P2

The YF-P2 is a portable transit-time meter with a large rotatable display and a wide diameter range suited to acceptance testing. See the YF-P2 specifications →

  • DN25-DN5000 range for large transmission and process lines.
  • ±0.5% accuracy with 0.15% repeatability.
  • V and N clamp-on mounting methods.
  • 3.5″ 480×320 IPS display, 360-degree rotatable.
  • RS485 Modbus RTU and analog output for data capture.

Configuration used in this application

Meter YF-P2 portable transit-time
Pipe diameter DN25-DN5000 (1″-200″)
Accuracy ±0.5% (0.5-5.0 m/s)
Linearity / repeatability ±0.5% / 0.15%
Flow velocity 0.1-12.0 m/s
Mounting V method and N method (clamp-on)
Display 3.5″ 480×320 IPS, 360° rotatable, 10-digit
Communication RS485, Modbus RTU

How it is deployed

  1. Agree test points and flow conditions with the contractor and owner.
  2. Install clamp-on transducers on a straight section and verify signal and zero.
  3. Run the pump at specified operating points and record steady flow.
  4. Compare measured flow against design values and export results for the handover report.

What the operator gets

  • Independent, high-accuracy flow evidence for acceptance.
  • No pipe modification or shutdown during testing.
  • Coverage from small to very large diameters with one instrument family.
  • Clear records suitable for handover documentation.

Frequently asked questions

What accuracy can I expect for an acceptance test?

The YF-P2 provides +/-0.5% accuracy (0.5-5.0 m/s) with 0.15% repeatability, suited to verification and handover testing.

Can it measure pipes of several metres?

Yes, the range runs to DN5000 with appropriate clamp-on transducers.

Can results be sent to a data logger?

Yes, the meter offers RS485 Modbus RTU and an analog output for external recording.

Have a similar requirement?

Send us your pipe size, pipe material, fluid, temperature and quantity. Our engineers will recommend the right configuration and reply with factory-direct wholesale/OEM pricing in English.

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