Gravity equipment is designed to transport grain and other bulk materials in gravity pipes (gravity pipes). Grain (bulk materials) is transported due to the force of gravity and the angle of inclination of grain lines (Samotekov). The tilt angle can vary from 30 to 90 degrees.
Adapters are needed to connect gravity pipes of various cross-sections, for example: from a round pipe to a square one or from a pipe with a diameter of 200mm to a pipe with a diameter of 300mm. Lining of adapters with 4.0mm polyurethane can significantly increase their service life.