Underpressure leak detector VL-330
Leakdetection system to detect and indicate leaks in CGH double-walled tanks. Every leak in one of the walls will be indicated by an optical and audible alarm before liquid enters the environment.
Class I-system in accordance to the European standard EN 13 160.
Monitoring principle:
The pump in the leak detector creates a operational underpressure in the interstitial space. Any minor unavoidable untightness is compensated by the system automatically. In case of a leak, air, groundwater or product is sucked into the interstitial space. If the volume flow of air entering the interstitial space is higher than the limited volume flow of the vacuum pump, the pressure will rise to the alarm underpressure.
Groundwater or stored product is sucked into the interstitial space. When the interstitial space is filled up, the liquid enters the liquid stop valve, which closes then. No further underpressure can be produced. Some more liquid will be sucked into the measuring line, causing a rise in pressure to the alarm underpressure. The optical and audible alarm is released.
Liquids to be monitored:
Water polluting liquids :
• Model VL-330: with a flash point > 55° Celsius; (e.g. Diesel, heating oil)
• Model VLXE: with a flash point < 55° Celsius (e.g.: gasoline/petrol, jet fuel)
• Specific chemicals in accordance to chemical resistance of the leak detector. Different materials to realise chemical resistance are available.
Approved for the use together with:
• double-walled horizontal tanks (e.g. EN 12285)
• single-walled horizontal or rectangular tanks equipped with a lining (e.g. DIN 6625 or similar)
• double-walled ball shaped tanks
• upright standing tanks (e.g. DIN 6618/2)
SGB VL-330: Data sheet - Download PDF
