| 摘要 |
<p>A diaphragm assembly (57) includes a pair of superposed flexible diaphragms adhesively secured to an annular spacer ring (66). The space between the diaphragms (60, 61) and the interior of the rings is filled preferably with de-ionized water. The resistivity of the water is monitored to detect conductivity changes upon leakage or diaphragm rupture when pumped materials or pump lubricant mix with the water. Diaphragm assembly and rupture detection methods are disclosed.</p> |
