SGB Products
SGB
For a clean and protected environment
Vacuum Leak Detector VLR .. E / VLR .. PMMV
The indoor version in a plastic box: VLR .. E – the vacuum leak detector with electronic expansion options for the use on pipes
The weather-proof outdoor version: VLR .. PMMV – the vacuum leak detector for pipes with a digital pressure display (M) and solenoid valves (MV) if required, e.g. at high pressures
Vacuum leak detector for the leak monitoring of double-walled pipes with the option of connect- ing additional equipment such as a sensor and/or a solenoid valve.
Sensor :
Instead of the liquid barrier if special assembly or stability conditions require it or as a leakage sensor that is used separately e.g. in the collecting area
Solenoid valve :
Is used at high pressures in the inner pipe (> 5–25 bar) to protect the leak detector from excessive pressures
Each leak in one of the both walls will be detected before the conveyed product can enter the environment.
A leak detection system with the highest level of environ- mental protection acc. to European standard EN 13160, class 1
Monitorable liquids :
Water-polluting liquids with a flash point > 60 °C (for Germany > 55 °C acc. TRBS and TRGS) where no explosive vapor-air mixtures occur. If different water-polluting liquids are con- veyed in individual pipelines and monitored with a leak detec- tor via a manifold, these liquids or their mixing must not have any hazardous effects on one another or cause any chemical reactions.
Monitorable pipes :
Pipes/hoses made in the factory or on site – depending on the version with up to 25 bar pressure in the inner pipe
| Types | Alarm ON, at the latest at | Pump OFF, not more than | Functionality of the interstitial space given for |
|---|---|---|---|
| VLR 410 E / VLR 410 PMMV | -410 mbar | -540 mbar | -750 mbar |
| VLR 570 E/VLR 570 PMMV | -570 mbar | -700 mbar | -900 mbar |
Application examples
VLR 410 E
1 monitored pipe with a feed pressure < 5 bar
Pipe with an additional pressure switch (ZD) at the opposite end
Rising pipe, max. length 250 m with a density of <= 1,0 g/cm³
Two pipes in series with 2 solenoid valves (115 V each wired in series) for feed pressures 5 up to 25 bars
Need for a higher chemical resistance? Your solution :
VLR 410 E in the chemically high-quality PP version
With polypropylene compon- ents or PP hose connection as well as various pneumatic connection variants (PP screw connection, PP hose connection)
Several pipes connected via a manifold, with a solenoid valve (MV) in the connection line
VLR 570 PMMV
Double-walled pipe, connected in parallel, with a solenoid valve in the connection line
Double-walled pipe, Connected in series
