SEALING DEVICE AND METHOD FOR SEALING

摘要

A sealing device (10) comprising a first sealing element (12) having a housing with an internal chamber therein and a second sealing element (14) having a shaft (34). When the first and second sealing elements are connected, the shaft (34) of the second sealing element extends into the internal chamber of the first sealing element through an opening in its housing. According to an important aspect of the invention, the first sealing element comprises a pressure sensor (46) connected to the internal chamber for sensing a pressure in the internal chamber; and a transmitter (48) for receiving a signal indicative of the pressure in the internal chamber and for transmitting the signal to a monitoring station.