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. 0.01 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.

Our delivery program:

Calibration and test leaks as well as customer-specific test leaks in diameters of DN 4 up to DN 25.

Standard and customer-specific test leaks:

Capillary calibration and test leaks EK
based on capillaries with linear pressure flow interrelationship
Nozzle test leaks EB
based on nozzles which are operated subcritically or critically
Customer-specific leaks ELY
based on the test sample geometry with installed capillaries or nozzles

Configuration of calibration and test leaks:

Structure: Calibration and test leaks on base of capillaries and nozzles are installed in tubular housings, threads or customer-specific test sample housings.
Design: The pressure flow design is always performed according to customer-specific requirements.
Calibration: All test leaks are delivered with calibration certificate. In addition, correction formula for other operating conditions can be provided, deviating from the nominal design conditions.