| 摘要 |
A pressure relief arrangement for a pump ( 10 ) which includes a pump housing assembly with a pumping chamber ( 25 ) therein, the pump housing assembly including a section ( 41 ) mounted for movement between a normal operating position and a venting position, a shearing element ( 45 ) being adapted to retain the section in the normal operating position, the section ( 41 ) being mounted so that upon the pressure within the pumping chamber ( 25 ) can act on the section ( 41 ) and upon the pressure within the pumping chamber ( 25 ) reaching a specified pressure, the shearing element ( 45 ) will fail thereby permitting movement of the section ( 41 ) from the normal operating to the venting position.
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