High temperature steam valve

摘要

A high temperature actuated steam valve is disclosed that has a connector extending between the casing of the valve and its actuator. The connector can include two spacers made of materials each with a different hot strength wherein the first spacer, fixed adjacent the casing, has a higher hot strength that the second spacer, which is fixed adjacent to the actuator.

主权项

1. A high temperature steam valve comprising:
a casing; a connector fixed adjacent to the casing; and an actuator fixed adjacent to the connector for operating the valve, the connector comprising:
a first spacer with first and second ends, the first end fixed adjacent to the casing; anda second spacer with an extended portion that spans between a first end face and a second end face, wherein the first end face of the second spacer faces and abuts the second end of the first spacer and the second end face of the second spacer faces and abuts the actuator,wherein the second spacer is made of a material with a lower hot strength than the first spacer,wherein at least one end face of the second spacer includes surface irregularities for increasing a surface area of the at least one end face to increase convective heat loss, the surface irregularities include at least one of a plurality of radial grooves and/or circumferential grooves.