Patent ID: 11898658
Assignee: DRESSER, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B  Y | IPC F

Claim 15:
16. A valve, comprising:
an actuator;
a closure member coupled with the actuator;
a one-piece valve body enclosing the closure member, the one-piece valve body having a main flow path with a central axis and having openings disposed at either end, the one-piece valve body having a single first wall forming an interior surface defining the main flow path; and
a second wall disposed on and surrounding the valve body, the second wall spaced apart from the single first wall so as to form an air gap therebetween,
wherein the single first wall and the second wall are formed integrally as a joint-less manufacture,
wherein the single first wall includes a secondary flow path in proximity to the closure member, and
wherein the second wall includes ports that allow fluid into the air gap.