| 摘要 |
<p>PROBLEM TO BE SOLVED: To cope with all kinds of water-saving valves of different water pressures, apertures, water-saving rates by preparing many kinds of water-saving valves and avoid an extra burden on a client who requests the installation of a water-saving valve. SOLUTION: The water-saving valve is inserted in the outlet side pipe of a city water faucet during use. The upper portion of an outer cylinder is closely fitted into the upper portion of a bottomed inner cylinder having an outer flange at its mouth, and the rate of water-saving is determined by the size of a water hole provided in the inner cylinder and the size of clearance between the inner cylinder and the outer cylinder. The flow-regulating water-saving valve is provided with a regulating means for the amount of water which passes through one or both of the water hole and the clearance.</p> |
