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Leak detection technology 

 
 

For a clean and protected environment 

Sold by: 

SGB 

Sicherungsgerätebau GmbH

    

Tel.: + 49 / (0) 271 / 48964-0 

 

Hofstr. 10 

D-57076 Siegen   

Fax: + 49 / (0) 271 / 48964-6 

 

Postfach: 21 07 41 

D-57031 Siegen   http//www.sgb.de 

 

 

   

 

 

 

 

 

 

E-mail: 

[email protected]

 

 

 

   

Underpressure leak detector 

VL 330 

Leak detection system to detect and indicate 
leaks in 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) 

Liquids to be monitored: 

Water polluting liquids : 

 

with a flash point > 55° Celsius; e.g. Diesel, 
heating oil)  

 

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) 

Approvals: 

 

Germany: Z -65.22 - 389

 

 
 
 

Technical data: 

type alarm 

underpressure 

operational 

underpressure 

VL 330 

>330 mbar 

(> 4.79 psi) 

450 mbar 
(6.53 psi) 

 

 

VL 330 P in a protection box  

 

Complete set including for all necessary 
installation equipment 

 

Installation kit 
for the tank 

 

triple condensate 
trap 

 

  
 

 

 

UK Distributor  

 

t: +44 (0)1388 813433 
f: +44 (0)1388 813307 
[email protected] 
www.orangecounty.co.uk

 

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