| 摘要 |
PURPOSE: A valve for improving airtightness is provided to minimize deformation and damage to the valve using a metal seal and to continuously prevent the leakage of fluid in the poor conditions of high temperature and high pressure. CONSTITUTION: A valve for improving airtightness comprises a cage(20) and a port(60). The cage has an opening(21) formed inside a body with an inlet port and an outlet port. The port ascends and descends inside the cage. A ring-shaped metal seal is arranged between the cage and the port to prevent the leakage of fluid. |
