An identification device adapted for attachment to an insulated electrical conductor includes a pair of generally-rectangular marking plates having planar first longitudinal horizontal surfaces. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve body. The data line is intersected with the first scan line and the second scan line. The name server creates a list of small computer system interface targets that are available. The brake modules have assigned thereto individual drives with controls for stipulating a reference speed relative to a speed of the machine. The baffle is in the form of an apertured plate above the stripping zone and in its preferred form comprises number of radial fins or blades, resembling a static fan with openings between the fins to permit vapors from the lower portions of the tower to pass upwards through the baffle with a minimal pressure drop.