| 摘要 |
Thermostatic mixing valve having a portion 4 (eg cup) of the housing for holding a spring for biasing a flow control assembly controlling the flows of hot and cold water. The valve has a bypass opening in the portion, a bypass closure member and a holding device (eg spring) for holding the bypass closure member so as to close the bypass opening. If the pressure by the cold water onto the closure member becomes higher than the force of the holding device (eg because of a failure of hot water supply, which would reduce the pressure in the mixing chamber), the bypass closure member opens the bypass opening and cold water is allowed to the mixing chamber and to the outlet. Advantage: cold water is provided in case of failure of the hot water supply. |
