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SCFN plate low Supercritical Fluid Specialist, partner of the Super Critical Fluid Network (SCFN)  

Membrane Pump

Separeco doesn't use piston pumps or compressors in its systems, but diaphragm metering pumps only.
Although the cost is higher if this kind of pump is compared to a simple gas booster or piston pump, the advanteges are really considerabile. 
In fact, diaphragm metering pumps are not affected by supercritical fluid because process fluids are completely separated from the mechanical part of the pump. Diaphragm metering pumps meet the highest requirements and demands of the chemistry, cosmetics, pharmaceutical and biotechnology industries, or food and beverage industries. Some of most important advantages are:
  • High energy-efficiency ratio,
  • Low maintenance costs,
  • Extremely long service life for diaphragms.

The video here below shows exactly how the pump works.

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  Separeco Srl
  Via Carlo Borra 33/35,                                  PINEROLO, ITALY
  +39 0121 339 047
  Mo-Fr:10.00 18.00