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Critical Point Dryer Rupture Disks
E3000, E3100 and CPD7501 models of critical point dryers are pressure tested by an external test house to a pressure of 2500 psi. All Polaron models are fitted with an E3000-052 rupture disc with a bursting pressure rated at 1850 psi.
The E3000-052 rupture disc is held in place with a copper retaining washer (E3000-053). During removal of a punctured bursting disc the retaining copper washer may be damaged. For this reason it is advisable to fit a new copper retaining washer at the same time.

Copper retaining washer (E3000-053) and rupture disc (E3000-052)