| 摘要 |
<p>A mixer device in the form of a thermostatic mixing tap (1) comprises a discharge tap part (3) and a mixing valve unit (2) attached to the tap part (3). The valve unit (2) includes a thermostatic mixer device (40) receiving relatively hot and cold fluids (water) via inlet ducts (14, 15) and supplying blended water to the tap part (3) to serve as warm water at the desired temperature. The flow of water via the inlet ducts (14, 15) is controlled by a rotary-disc valve device (16) actuated by a control handle (35/35A) of the tap part. The valve device (16) may permit a cold water flow to the tap part (3) by-passing the mixer device (40). The tap (1) substantially avoids the risk of entrapment of warm water at tap closure thereby minimising legionella bacteria growth, and the valve device (16) avoids the need for separate one-way valves for the mixer device.</p> |
