1 Class I Leak Detection Systems - Highest level of monitoring and prevention of double walled tanks...
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1 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
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Transcript of 1 Class I Leak Detection Systems - Highest level of monitoring and prevention of double walled tanks...
1
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
Interstitial space
Pressure line Measuring
line
Air flow
OFF ON
PumpPressure in the
Interstitial
Green operation light
- Leak detector shows normal operation by green light
Normal Operation
- 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
OFF ONNote:If the operating frequency of the
pump increases more and more, this points to an increasing leakage.
Double walled tank (or pipe)
Leak Detection acc. EN 13160 Class IWorking principle - overpressure system Pressure leak detector
(e.g. THOMAS-ASF D9)
… in theouter tank wall
or
PumpPressure in the
Interstitial
OFF ON
Air flow
OFF ON
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
- At set point “Pump ON”, pump 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
Alarm buzzer switch
„Buzzer disabled” indicated by yellow light
Red alarm light
Prevention time
… in theinner tank wall
Pressure leak detector(e.g. THOMAS-ASF D9)
Leak Detection acc. EN 13160 Class IWorking principle - overpressure system
- For a certain period of time, the pressure in the interstitial remains higher than the max. hydrostatical pressure inside the tank prevents leaking into the environment
Präsentation neuer LAG Newsletter.ppt4
Focus on Safety, For A Clean Environment.
Proven ASF Leak Detector Technology
ContactMail: [email protected]
Phone: +49 (0)89 809 00 1170Web: www.thomas-leak-detection.com
Copyright – Gardner Denver Thomas GmbH, D-82178 Puchheim, 02/2014Thomas does not warrant, guarantee or assume any obligation or liability in connection with this information.
