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Precise measurement of pressures
The hydraulic pipeline tester is a portable unit suitable for the accurate measurement of arbitrary and fluctuating pressures, which occur in power plants, pipelines and many other applications.
Basic principle
To measure a pressure, masses are added to the piston unit corresponding to a pressure just below that to be measured. The total downward force of the masses is in excess of the pressure to be measured and is balanced by the pressure produced by the spindle pump. The pressure of the spindle pump is applied to the stepped area of the piston which pushes it upwards. This low pressure is indicated on the dial of the test gauge specially graduated so that the reading of the gauge only is added to the pressure equivalent of the masses used. The weight of the mass carrier corresponds to the scale range of the dial and is ignored.
Traceable to national standards
The piston unit and masses supplied with this pipeline tester have been calibrated against standards which are traceable to national standards.
Special features
- Ranges from 30 ... 600 bar [500 ... 8,000 lb/in²]
- Accuracy: 0.03 % + 0.05 bar [0.03 % + 0.7 lb/in²]
- Ergonomic layout ideal for field use
- All instruments supplied with certification traceable to national standards
- The UKAS calibration certificate is available in our pressure standards laboratory as an optional extra