Diaphragm valve
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United States of America Patent
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Oct 8, 1985
Grant Date -
N/A
app pub date -
Jun 20, 1984
filing date -
Dec 8, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A diaphragm valve suitable for the food industry, including a valve body (1) and body caps (2) connected to opposite ends thereof in a detachable but water-tight manner. Sealing between the valve body (1) and the body cap (2) is provided by an annular groove (16) recessed on the end surface of the valve body (1) and/or the body caps (2) and packing rings (17) having an inner diameter corresponding to that of the valve body (1) and provided with an annular protrusion (18) fitted to the groove (16). By this sealing, a gap between the opposite surfaces of the valve body (1) and the body cap (2) is completely eliminated.
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