| 摘要 |
A retractable thermowell is formed of a fixed thermowell housing on which a movable thermowell housing is threaded. The fixed thermowell housing and the movable thermowell housing together receive a thermowell. The thermowell is secured for axial movement with the movable thermowell housing. When the movable thermowell housing is threaded onto or off the fixed thermowell housing, the movable thermowell housing is moved between respectively an extended and retracted position.
|
