CSF piston pump system for pastes and high viscosity products

Published: 1-Nov-2003


Transferring very high viscosity creams, gels and pastes which do not flow presents a major problem for companies. Liquids handling specialists Pump Engineering, of Littlehampton, UK, offer a solution with a CSF piston pump, already widely used for high viscosity fluids in these industries, fitted to a twin ram system which enables the pump to be used for these problem products.

The system works by using a short CSF piston pump mounted in the centre of a follower plate which fits into a drum and seals against the inside of the drum. Two pneumatic cylinders force the plate onto the top of the product. As the pump empties the drum, so the plate is pushed downwards, keeping the inlet of the pump full of the product. A rubber seal on the follower plate wipes the side of the drum as it travels downwards, sealing it and ensuring that very little product is wasted. The pumps are available as quick strip versions for easy cleaning without the need for tools.

CSF pumps are air operated and, depending on the model, will delver flow rates up to 100l/min with pressures up to 100 bar. Construction materials are AISI 304 or 316 stainless steel.

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