Furon Astipure II High Purity Pumps feature a 100% PFA/ PTFE wetted flow path and contain no metal parts or elastomeric seals, assuring compatibility with even the most aggressive chemicals. Furon Astipure II pumps have pumping rates ranging from 4 GPM to 16 GPM. For higher flow rates, Saint-Gobain offers the time-proven PFD4 pump, which offers flow rates as high as 26 GPM. For abrasive slurries, special configurations of the Furon Astipure II Pump are available to assure reliability in the most demanding pumping conditions. Slurry pumps feature specially designed bellows to prevent particle agglomeration and premature failure.