Italian DVP PA and VA Series oil-free dry claw vacuum pumps create air volume and transfer it from the intake to the outlet duct via the rotation of two claw-shaped rotors in a molded chamber. The dry, contactless rotor rotation is gear-synchronized without any lubricant in the rotation chamber, avoiding residue from friction or rubbing; the timing gears themselves are oil-lubricated and housed in two compartments separated from the rotation chamber by gaskets. Claw pumps deliver low operating costs thanks to moderate energy consumption and high efficiency, while maintenance is minimal due to the absence of friction between the moving rotors. Flow up to roughly 176 cfm and vacuum around 112–150 Torr.
