Role in pipeline sampling

Many such systems operate 24/7 in remote locations so pump reliability is a fundamental requirement. In many instances, pipe scale is an issue. Hard, brittle and abrasive, Wanner says it can cause rapid wear in pumps that have dynamic seals and tight tolerances, leading to pump inefficiency, seal leakage and on occasions catastrophic failure. Even where fine filtration is installed this needs regular maintenance to remain effective.

Hydra-Cell pumps have multiple, hydraulically balanced diaphragms in a single pump head. They are seal-less and therefore leak free and can handle solid particles up to 1.5mm depending on the model.

The high pressure performance of these pumps ensures they are capable of meeting the pressure required to reintroduce sampled oil back into the main flow and are more than sufficient to jet-homogenise the pipeline content prior to sampling.

The pumps have also been shown to overcome poor suction conditions, overcoming low flow and acceleration head losses in the process.