VLXE-SAB - Underpressure (vacuum) Monitoring of Tanks and Pipework

SGB VLXE-SAB Vacuum Leak Detector (Outdoor Multi-Channel)

The VLXE-SAB is a vacuum leak detection system designed to monitor up to 16 double-walled tanks and/or pipework interstitial spaces. It is supplied in a free-standing enclosure specifically intended for outdoor installation.

A key advantage of the VLXE-SAB is that it can be installed close to the tank farm, which helps to reduce the amount of ducting and pneumatic tubing required and avoids the need to route air lines back to the shop/kiosk — simplifying installation and helping to improve site safety.

Standard Features

• Green operating status lamp
• Red alarm lamp
• Audible alarm sounder
• Main acknowledge button on the front panel
• Per-channel indication and controls inside the housing for each interstitial space: operation, alarm, pressure, and pump run, with acknowledge buttons for each channel

Available Types

• VLXE-SAB T34 – for tanks with a suction line to the low point of the interstitial space
• VLXE-SAB T330 – for tanks with up to 3.0 m diameter
• VLXE-SAB P410 – for fill and vapour recovery lines
• VLXE-SAB P500 – for suction lines

Combined Solutions

• VLXE-SAB T34 / T80 – for compartment tanks and combined storage of diesel and petrol
• VLXE-SAB T34 / P410
• VLXE-SAB T34 / P500
• VLXE-SAB T330 / P410
• VLXE-SAB T330 / P500

Capacity

• Up to 16 tanks and/or pipes (interstitial spaces)

Optional Equipment

• Flashing beacon (external visual alarm)

Applicable Tanks and Pipes

• Tanks: maximum internal overpressure of 500 mbar
• Pipes: maximum feed pressure in the inner pipe of 3.5 bar

Stored / Conveyed Products

Suitable for water-polluting liquids. Any potentially explosive vapour-air mixtures that may occur (including mixtures created by contact with air, humidity, condensation, or the materials used) must fall within:

• Gas group: II A to II B
• Temperature class: T1 to T4
• Examples: petrol, diesel, AdBlue

Installation

• Install outside the hazardous (Ex) area, or in areas where an Ex-zone does not exceed a height of 1 metre
• Outdoor installation in a free-standing housing

Housing / Temperature Range

• st-box: painted steel enclosure
  Unheated: –20 °C to +60 °C
  Heated: –40 °C to +60 °C
• ss-box: stainless steel enclosure
  Unheated: –20 °C to +60 °C
  Heated: –40 °C to +60 °C

Pneumatic Connections

• QU8/6: quick union for polyamide (PA) hose 8/6 × 1 mm
• Option: can be changed to CF8/6 (compression ferrule for copper (Cu) pipe 8/6 × 1 mm) by ordering Article No. 425207-M for each outlet

The requirements of the relevant product documentation must be observed.