IDP-3 scroll pump, for Turbo 597X. The Agilent IDP-3 and IDP-10 oil-free dry pumps provide affordable, oil-free vacuums qualified for use current and legacy Agilent GC/MSD systems. Each pump creates a vacuum using a simple dual scroll mechanism—one nested scroll orbits around the other, creating moving zones of captured gas. Gas enters the pump at the perimeter and is displaced and compressed toward the center hub where it is exhausted, creating low, ultimate pressure at high speed.;Both pumps ensure that you have everything required to replace troublesome oil pumps—eliminating issues surrounding oil pump maintenance including: oil leaks, oil disposal costs, spills, and laboratory safety concerns. Maintenance for the pumps requires a simple change to tip seals and an O-ring.