Special Features:

Dwg name: the gaylord model nad-56 ventilator (lhd-8 troop galley). Suggested usage: over ovens, kettles, and any high equiptment where extreme low overhead exists.

Properties:

A nonpositive displacement mechanical device having either an axial or centrifugal fan impeller. It is designed to move free air or gas from indoors to outdoors or vice versa over a wide range of volumes at low pressures. It is supported by a ring, plate, or shroud or may be inclosed in a housing. It is designed for installation in a window, roof or wall opening, or the like.