Class I Leak Detection Systems Highest level of

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Class I Leak Detection Systems Highest level of monitoring and prevention of double walled

Class I Leak Detection Systems Highest level of monitoring and prevention of double walled tanks and pipes, according EU Standard EN 13160 -2 Overpressure systems working principle… www. thomas-leak-detection. com 1

Leak Detection acc. EN 13160 Class I Working principle - overpressure system Pressure leak

Leak Detection acc. EN 13160 Class I Working principle - overpressure system Pressure leak detector (e. g. THOMAS-ASF D 9) Green operation light Normal Operation - Leak detector shows normal operation by green light - Interstitial space of the double walled tank (or pipe) is pressurized up to system setup „Pump OFF“ - Normal pressure variations, caused by the system or temperature changes balanced by the pump Note: If the operating frequency of the pump increases more and more, this points to an increasing leakage. Pressure line Measuring line Pressure in the Interstitial Air flow Pump Interstitial space OFF Double walled tank (or pipe) ON ON

Leak Detection acc. EN 13160 Class I Working principle - overpressure system Pressure leak

Leak Detection acc. EN 13160 Class I Working principle - overpressure system Pressure leak detector (e. g. THOMAS-ASF D 9) Red alarm light Leakage in the system… - Air is pressed through the inner wall into the tank, or through the outer wall - Pressure level in the interstitial space is decreasing Air - At set point “Pump ON”, pump flow starts - Pump can‘t balance the leakage, the pressure level changes down to the set point “Alarm ON” - Alarm situation indicated by visual red light and acoustic buzzer - Switch off the buzzer, call for service - For a certain period of time, the pressure in the interstitial remains higher than the max. … in the hydrostatical pressure inside inner tank wall the tank prevents leaking into the environment Alarm buzzer switch „Buzzer disabled” indicated by yellow light Pressure in the Interstitial Pump Prevention time OFF … in the outer tank wall or ON ON

Focus on Safety, For A Clean Environment. Proven ASF Leak Detector Technology Contact Mail:

Focus on Safety, For A Clean Environment. Proven ASF Leak Detector Technology Contact Mail: info@thomas-leak-detection. com Phone: +49 (0)89 809 00 1170 Web: www. thomas-leak-detection. com Copyright – Gardner Denver Thomas Gmb. H, D-82178 Puchheim, 02/2014 Thomas does not warrant, guarantee or assume any obligation or liability in connection with this information. 4 Präsentation neuer LAG Newsletter. ppt