To provide a water supply device unsusceptible to occurrence of abnormal noise, while using a constant flow control valve of a type using an elastic ring.
The water supply device 1 with constant flow control valve includes: a water supply device body 18; and a constant flow control valve 36 disposed along the water supply passage. The constant flow control valve includes: a fixing member 38 having a constant flow control valve outlet port formed at a downstream end; a movable member 40 slidably supported in a predetermined axial direction with respect to the fixing member; and the elastic ring 42 disposed between the fixed member and the movable member and is elastically deformed when the movable member is pressed by water pressure to narrow a flow passage. The constant flow control valve further includes a pressure fluctuation suppression part 44a disposed to be opposed to the constant flow control valve outlet port, wherein an opposed face opposed to the constant flow control valve outlet port, gets close to the constant flow control valve outlet port at the center part, but is separated from the constant flow control valve outlet port in the peripheral part, and a project plane in an axial direction is formed to surround the constant flow control valve outlet port.
| JPH10169811 | EMERGENCY LEAKAGE PREVENTIVE VALVE |
MIURA SHOJI
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Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Makoto Watanabe