SUMMARY

The system uses a high-pressure piston-recirculation pump to circulate product through the filter module of choice. The variable speed triple-piston design combined with high-pressure flexibles minimises pressure pulsation. The operator can use their own feed vessel or this can be specified (FT18-20 option). The speed of the recirculation pump can be adjusted to suit the particular filtration module and the product.

A level sensor mounted on the pump inlet protects the pump from running dry.

The retentate back-pressure valve enables pressures up to 50 bar to be achieved. A relief valve protects against overpressure.

There is a permeate back-pressure valve so that accurate transmembrane pressures (TMP) can be set. Pressure sensors are sited on the retentate side on the inlet and outlet of the filter module, as well as on the permeate side. Any temperature gain in the retentate through recirculation at high pressure is removed using a 316 stainless steel shell and tube heat exchanger, which has corrugated tubes for improved heat transfer.

The transmembrane pressure can be finely controlled with independent back pressure valves. This reduces the fouling on the membrane when operating at higher pressures, extending the lifetime of the membrane.

APPLICATIONS

FOOD:

Dairy: Removal of micro-organisms from milk and cheese brines, milk protein standardisation and concentration, whey demineralisation, whey protein fractionation, defatting of whey proteins, and filtration

Fermented foods: Clarification of wine, beer and vinegar, removal of alcohol from wine and beer, post-fermentation yeast recovery, wine lifting

Fruit juices: Clarification and concentration

WATER:

Water and waste water purification, desalination, water softening

PHARMA:

Concentration and purification of macromolecules, sterile filtration, viral clearance, cell separation, water purification

EDIBLE OILS:

Degumming of vegetable oils

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