Vacuum slurry tanker DUO Line Plus

tandem axle

A particular feature of PFW Duo Line Plus is that the tank is split into two chambers. However, an opening in the separating wall allows the slurry in the lower part of the tank to flow from one section into the other. During filling, the air regulation via the vent valve ensures that the slurry level rises evenly in both chambers. During discharge, the air regulation has the opposite effect: In this case, the rear chamber is emptied first while the slurry in the front chamber is held back. The weight is thus shifted to the front. This ensures an ideal drawbar load at the rear of the tractor when travelling uphill. Residual emptying takes place once the slurry volume in the rear chamber has dropped to a level that allows air to enter the front chamber via the separating wall.