| 摘要 |
<p>Apparatus for periodically testing the operation of safety valves on pressure apparata or vassels, comprises a load-bearing structure (P) fixedly arranged with respect to the pressure apparatus (R), a thrust generating assembly (7) cooperating with said load-bearing structure (P), and means for gripping the safety valve (V) being tested. A dynamometer device (9) cooperates with the thrust generating assembly (7), and measures the force applied by the thrust generator (7) to the safety valve (V).</p> |
