Profile: PSI-Polymer Systems, Inc. supplies polymer filtration equipment, gear pumps, static mixers, divert valves and engineered system. We serve plastics extrusion, polymer processing and recycling industries. Our continuous screen changer is used in tubing, coating, compounding and underwater palletizing. Our PSI hydraulic screen changer allows for filtration of most polymers with minimum disruption during a screen change. Our replacement parts include breaker plates, filter screens, heaters, gears and seals. We are accredited with ISO 9002 certification.