Pressure fitting, in particular a pressure relief and safety valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 11, 2000
Grant Date -
N/A
app pub date -
Mar 21, 1997
filing date -
May 27, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a pressure fitting (1) having a flow channel (42), a valve cone (5), a sliding element (43), and a locking device (12). The sliding element (43) is disposed displaceably along a main axis (41) of the pressure fitting (1). The valve cone is disposed on one end (44) of the sliding element (43). The flow channel (42) is closable by the valve cone (5) and the locking device (12) can be moved into a locking position, so that in a position of the valve cone (5) that opens the flow channel (42) the locking device (12) engages the valve cone (5) and/or the sliding element (42) and keeps the valve cone (5) in the position that opens the flow channel (42). Thereby a pressure relief in a pressurized system, in particular in a pressurizer (47) of a pressurized water reactor, can be assured even to a pressureless state. The pressure fitting is particular useful as a pressure relief valve or as a combined pressure relief and safety valve.
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