Ageing (Durability) Test Bench

Water Meter Ageing and Durability Test Bench

DN15–DN40 | Continuous and intermittent flow test system

• EN ISO 4064 and OIML R49 Compliant

  Endurance and durability tests of water meters performed in line with international standards.

• DN15–DN40 Test Capacity

  Modular test line suitable for mechanical, ultrasonic and electronic water meters.

• 100,000-Cycle Intermittent Flow

  Automatic durability test based on 15 s flow and 15 s stop for meters with Q3 ≤ 16 m³/h.

• 100-Hour Continuous Flow Test

  100-hour durability test at the Q4 overload flow rate for meters with Q3 ≤ 16 m³/h.

• Automatic Flow Control

  Stable flow and controlled flow transitions with frequency-controlled pumps and automatic valves.

• Automatic PLC Test Management

  Automatic management of run, stop, cycle count, flow and test durations.

• Multi-Meter Test Line

  Several water meters are aged at the same time in series or parallel connection.

• Precision Reference Flowmeter

  The flow rate is monitored throughout the test and kept within the standard tolerances.

• Temperature and Pressure Control

  Continuous monitoring of test water temperature and inlet and outlet pressures.

• Water Hammer and Cavitation Protection

  Controlled valve movements and suitable line pressure prevent additional wear on the meters.

• Touch Control and Monitoring

  Display of remaining test time, cycle count, instantaneous flow, pressure and temperature.

• Automatic Logging and Reporting

  Test duration, flow, cycle records, alarm history and results are reported as PDF / Excel.

Large Water Meter Ageing and Durability Test Bench

DN50 and above | High-flow continuous flow test system

• EN ISO 4064 and OIML R49 Compliant

  Standard-compliant design for long-term durability and wear tests of large water meters.

• DN50 and Larger Test Capacity

  Modular test setup for flanged Woltmann, ultrasonic and electromagnetic meters.

• 800-Hour Continuous Flow Test at Q3

  800-hour long-term durability test at permanent flow for meters with Q3 > 16 m³/h.

• 200-Hour Overload Test at Q4

  Meters with Q3 > 16 m³/h are run for 200 hours at overload flow to assess their durability.

• High-Capacity Pump System

  Frequency-controlled pump infrastructure matching the Q3 and Q4 flow requirements of large meters.

• Automatic PLC Test Control

  Automatic management of flow setting, test duration, pump control and test safety.

• Flanged, Modular Connection

  Interchangeable connection adapters for different meter sizes and pressure ratings.

• Precision Reference Flowmeters

  Verification of stable flow and continuous flow monitoring over a wide flow range.

• Continuous Pressure and Temperature Monitoring

  Real-time logging of meter inlet/outlet pressures and test water temperature.

• Cavitation and Water Hammer Protection

  Controlled flow changes, pressure protection and safe valve control.

• 24/7 Uninterrupted Test Monitoring

  Automatic alarms, data logging and safe shutdown for long-duration tests.

• Before / After Test Comparison

  Changes in indication error are analysed and durability results reported as PDF / Excel.

Endurance Test Durations According to the Standards

OIML R49-2:2024 clause 7.11 – Table 1

For other temperature classes, 50 ± 5 °C applies to the Q3 test and 0.9 × MAT ± 5 °C to the Q4 test. Additional durability tests apply to combination water meters.