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Vessel gear pumps (VGP) transfer material from reactor/devolatilization vessels, kneaders or large twin screw compounding extruders to discharge a steady volumetric output direct to the pelletizer.  VGP series pump sizes accommodate pilot operations to full production.

These high efficiency pumps generate stable discharge pressures while accommodating very low-pressure infeed of high and low viscosity materials. Typical inlet pressure is under vacuum or to 145 PSI.  A choice of feed openings optimize flow even under conditions of very low vessel fill levels and high vacuum.  For higher viscosities and to avoid cavitation by assuring positive fill of the gear teeth, PSI offers up to 170 degrees of infeed to the gear teeth.