| 摘要 |
In a stop tap (10) for a water supply system and comprising a closure member 14 and a check valve (18) at least within inlet port 11 for avoiding pollution or contamination of the piping system upstream from the tap, a device for compensating the excess pressure which builds up at the closure within the tap (10) comprises a resiliently yielding member (21) defining a closed space within a chamber (20) connected to the inlet port (11). The member (21) may include a membrane, a hollow body, a bellows, or a piston. <IMAGE> |
