| 摘要 |
A tap pressure balance valve for maintaining normal operation of the tap has a coil and a cut-off disposed in a though hole of a secondary case at where in relation to a water outlet provided on a deck of a primary case for the coil to push against the cut-off to maintain water tight between the through hole of the secondary case and the water outlet of the primary case so to avoid seepage from the interface where both cases are incorporated to each other.
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