DOUBLE NOZZLE-BOSS FOR THE PLASTIC LINER OF HIGH PRESSURE VESSEL

摘要

PURPOSE: A double nozzle boss for a plastic liner of a high-pressure vessel is provided to prevent internal pressure from being transferred to a wing unit by installing a tightening unit in the bottom of a head. CONSTITUTION: A double nozzle boss for a plastic liner of a high-pressure vessel comprises a head(20) and a wing unit(30). The head has a fastening hole and a screw thread. The wing unit is formed in the bottom circumference of the head in a disk shape. An upper inclined surface is formed on the front top of the wing unit. A gap maintaining protrusion is formed on the bottom surface of the head. A screw unit is formed on the inner surface of the gap maintaining protrusion.