LAR Process Analysers AG

Maintenance-free sampling system FlowSampler

The FlowSampler is a patented sampling device by LAR which does not require filtration steps because sample is siphoned off in the center of the sample stream towards the main flow direction of the water. Therefore no big particles can get into the sample stream. The sample enters the system without discrimination because smaller particles are collected. The FlowSampler can handle even difficult challanges like the sampling at the inlet of a sewage treatment plant or before the raw rack.

The FlowSampler by LAR will be installed next to the analytical device (p.e. at a wall). The direction of installation is likewise, therefore the input of the sample can be from above, lower left or lower right. The outlet is at the opposite of the inlet.

Technical Description

The sampling device FlowSampler requires a flow of 5-10m³/h and at a max. counter pressure of <0.2 bar at the sampling tube of the FlowSampler (Di=3). The temperature of the sample should be less than 28°C. If higher sample temperatures are required, special versions of the FlowSampler are available.

The connection of the FlowSampler can be realised as a PVC tube screwing of 32mm (external) or as tube connection for a pressure hose with 30mm internal diameter. For the sample drain the same dimension are valid.

The sample dosing can be done by an immersion pump which may require a cutting device, depending on sample composition. The pump is required to guarantee the necessary flow of 5-10m³/h over the bridged distance.