| 摘要 |
PURPOSE:To eliminate a water hammer knock sound generated at a downstream side of a water-solenoid valve or vibration being transmitted to a bath tub by a method wherein the water solenoid valve is disposed at a hot water feeding pipe connected to a water supplying source, a pipe closing member branched and connected to the hot water supplying pipe at the downstream side of the water solenoid valve is disposed upwardly from a connection part with the hot water supplying pipe so as to form an air reservoir. CONSTITUTION:As a hot water feeding valve 17 is opened, hot water in a hot water feeding pipe 16 is flowed into a forward pipeline 31 of a bath circulation circuit 30a. At this time, the hot water is passed at the forward pipeline 31 from the pipe member 31a toward the pipe member 31b. However, air in the closed pipe member 51 branched and connected from the T-shaped pipe 52 is enclosed by the hot water passing therethrough to form an air reservoir 51A, and pressure of the hot water is absorbed by the air reservoir 51A. As a result, when the hot water feeding valve 17 is opened, the water hammering transmitted from the pipe member 31a is weakened and this striking action is eliminated when the hot water is directed toward the pipe member 31b. |
