| 摘要 |
A temperature sensor having a liquid-filled temperature bulb for actuating a diaphragm which positions a hollow cylindrical valve plug. The hollow cylindrical valve plug is provided with an open end and a closed end having a small orifice therein whereby fluid flowing into said hollow cylindrical valve plug and out of said orifice provides a film of fluid between the closed end of the valve plug and the diaphragm thereby reducing sliding friction between the valve plug and the diaphragm.
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