Page 618 - Womens Pavilion

Theory of Operation
Chapter 3
When a frontbody barrel is inserted into a rough-in assembly, the secondary check unit is
forced open, which permits gas flow through the secondary check unit. A rubber bushing
seals the barrel, preventing external leaks.

The primary check unit in the frontbody assembly prevents gas flow out of the outlet until
an appropriate gas-specific adapter is fully inserted and engaged in the frontbody assembly.

When a DISS (female) adapter is connected onto the frontbody threaded DISS (male)
barrel, the nose of the DISS adapter pushes the frontbody piston back. This breaks the seal
between the frontbody barrel and the frontbody O-ring, which allows gas to flow.

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DiamondCare® Recessed Wall Outlet and Electrical Accessories (MAN01-045) Page 3-3