| 摘要 |
The valve for a water pipe system, pref. one used for carrying water during summer, closes in response to an increase in system pressure and opens if the system pressure is reduced. The valve comprises a pref. spring-loaded, resilient chamber with pref. elastic walls, connected to the system (1). Below it, there is a swellable part (2) operating a throttle clamp (5). An elastic hose (6) passes through the clamp to an outlet or end (7) open to the atmos. |
