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Downpipe / slurry sampler 

For chutes and pipes up to 800 mm diameter

Downpipe sampler - system photo

For taking bulk material samples across the entire chute cross-section from vertical chutes or pipes.

Operating behavior & mechanical features

With the Downpipe / slurry sampler type FPN / TPN, representative sampling is carried out using a sample chute that is guided in a circular motion through the material flow at a constant speed. While the sample chute is rotated through the material flow, a partial flow is continuously separated and guided to the outside. The sample material obtained in this way can be collected via a pipe socket and processed further. The waiting position of the sample chute between two removals is inside the material chamber, but outside the main product flow, so that permanent contact between the sample chute and the material flow is excluded, also with regard to wear and tear

The sample chute can be driven either by a geared motor or a pneumatic cylinder.

Differentiation between downpipe and turbidity sampler

The distinction between downpipe and turbidity samplers is based on the material flow to be sampled. For dry or moist bulk materials, we use the Downpipe / slurry sampler type FPN / TPN with a steep sample chute to avoid build-up. For turbid or suspended materials, the sample chute can be made shallower, which reduces the installation height and thus offers more scope for installation.


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A downpipe sampler type FPN from SIEBTECHNIK TEMA in a system for quicklime
Downpipe sampler FPN - quicklime
Downpipe sampler - system photo
Downpipe sampler
Downpipe sampler principle sketch 3D
Downpipe sampler / turbidity sampler Principle sketch 3D
3D graphic downpipe sampler - cut to visualize the product flow
Downpipe bumper FPN
Turbidity sampler in a plant for ore concentrate

Turbidity sampler

Taking turbidity samples across the entire chute cross-section from vertical, pressure-free pipes.

Read more
Downpipe swivel sampler from outside, close-up, 3D animation

Downpipe swivel sampler

Taking bulk material samples over the entire chute cross-section for low installation heights.

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Spoon sampler for turbidity in a system

Spoon sampler for turbidity

This spoon sampler is used for sampling sludge at the free pipe, channel or sump outlet.

Read more
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