| 摘要 |
A thermostatically responsive valve for controlling fluid, including a thermally responsive power member for operating the valve and indicator means movable to an operative position indicative of an overheat condition in response to high fluid temperatures. Latch means are provided to prevent movement of the indicator means into the overheat position during an overheat condition when activated by the thermally responsive power member, so that the responsibility of the thermostat can be determined by examination.
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