| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preventing potential overpressure situations from getting high enough to cause damage to a keg.SOLUTION: A beer keg assembly includes a liner 14 or bottle having a body portion 42 and a neck portion 46. A valve assembly 18 is in the neck portion of the liner. The valve assembly includes an inner retainer portion having an inner annular surface formed on a portion of reduced diameter. A cap is secured to the inner retainer portion. At least one spring imparts force between the cap and the inner annular surface. The at least one spring includes an inner spring biasing a piston and a port against one another. The at least one spring further includes an outer spring, where the inner spring and the outer spring are both captured between the inner annular surface and the cap. A pressure relief valve is disposed in a fluid path leading through a wall of the inner retainer portion. |
