Patent ID: 8413682

Claim:
A valve assembly, comprising: a body defining a flow path between an inlet and an outlet; opposing seating surfaces; first valve trim comprising a first valve stem operatively coupled to a first closure member, the first closure member to engage one of the seating surfaces to control fluid flow between the inlet and the outlet during normal operation; second valve trim comprising a second valve stem operatively coupled to a second closure member, the second closure member to engage the other one of the seating surfaces during a failure condition to restrict fluid flow between the inlet and the outlet, a surface of the second closure member to define a partial wall of the flow path during normal operation such that a profile of the flow path defined by the body and the second closure member is substantially continuous; and a compliant seal positioned in a groove of the second closure member, wherein the compliant seal is to be spaced from the fluid flow during normal operation to substantially prevent the fluid flowing through the body from contacting the compliant seal.