Sikorsky Aircraft Corporation

Yuriy Dmytrenko

Stephen R Sammataro

A drain plug assembly includes a valve body, a removable closure, a poppet, and a resilient member. The valve body has a central bore extending between an inlet and an axially opposite outlet. The bore has a seat arranged between the inlet and outlet. The closure has an unseated and seated position, the closure cooperating with the seat to form an outer seal in the seated position. The poppet is arranged in the bore on a side of the seat opposite the outlet and has open and closed positions, the poppet cooperating with the seat to form an interior seal in the closed position. The resilient member is arranged between the valve body and the poppet for fluidly isolating the inlet from the outlet irrespective of the closure position. A snap ring and locking spline arrange are incorporated to prevent removal of the valve body during service.

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Shelton, CT, United States of America

Yuriy Dmytrenko