| 摘要 |
A beer keg assembly (10) 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 (46) of the liner (14). The valve assembly (18) includes an inner retainer portion (26) having an inner annular surface (72) formed on a portion of reduced diameter. A cap (54) is secured to the inner retainer portion (26). At least one spring (58,62) imparts force between the cap (54) and the inner annular surface (72). The at least one spring may include an inner spring (62) biasing a piston (64) and a port (60) against one another. The at least one spring may further include an outer spring (58), the inner spring (62) and the outer spring (58) both being captured between the inner annular surface (72) and the cap (54). A pressure relief valve (28) may be disposed in a fluid path leading through a wall of the inner retainer portion (26). |
