Seal ring for fluid pump has diaphragm with radially inner section engaging seal ring and shell with flange fitting behind ring front face

摘要

The pump seal ring has a diaphragm (1) with a radial inner section (7) having a bore face (10) engaging the periphery of the seal ring (2). The inner section is spring biased against the ring. The shell (13) has a flange (14) which engages behind the front face of the ring.