Capillary Test Leaks
Calibration and test leaks for leak tightness and flow – overview
Calibration and test leaks are an important control instrument individually or integrated in flow or leak tightness test systems. They can be produced for leakages in a flow range of approx. 0.001 mL/min up to approx. 1.5 L/min at inlet pressures of 10 mbar up to 40 bar for air and gases.
We produce standard leaks in cylindrical form with threaded couplings or plug-in connectors on base of capillaries, nozzles and orifices. But it is also possible to implement defined nozzle profiles or orifice bores in available components or parts, which adjust a defined leakage or a micro flow under defined test conditions.
Main Features
- Calibration and test leaks with capillaries
- Capillaries made of borosilicate glass
- Easy handling and long service life
- Factory or DAkkS-DKD calibration certificate
- Gas type: air or inert gases, also oxygen and hydrogen if requested
Capillary calibration and test leaks – series KL
Calibration and test leaks are used for the simulation of leakages during the adjustment or monitoring of leak testers or flow measuring devices. Capillary leaks are connected instead of a test sample or in parallel to a tight test sample for the measuring process.
Calibration and test leaks of the series KL consist of a stainless steel tube into which a glass capillary is inserted. A filter protects the glass capillary against contamination. Depending on the inlet pressure and the type of gas the capillary sets a defined flow, which increases in proportion to the differential pressure above the capillary. Due to the high manufacturing tolerance they are only delivered with calibration certificate.
We are fully accredited from a minimum flow rate of 0.002 NmL/min and are happy to issue you an accredited calibration certificate for air or pure gases.
| Property | Function |
|---|---|
| Flow-Rates | 0.001 SmL/min to 1.5 SL/min |
| Operating pressure | max. 40 bar |
| Operating Temperature | 0 .. +80 °C |
| Manufacturing tolerance | ±5 %, ±10 % or customized |
| Calibration accuracy (air) | 0.001… < 1 SmL/min < ±2 - 3 % 1… < 170 SmL/min < ±1 % 170... 1500 SmL/min < ±0.65 % |
| Process connection | both sides G1/8 M with O-Ring |
| Media compatibility | air and inert gases |
If you require a different shape or size for a test leak, we will be happy to offer you individual alternatives for your application upon request.