Valve assemblies with integrated temperature control

A valve control assembly for use in a fluid flow control device, the valve control assembly comprising:

• a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet, the inlet adapted to be coupled to a source of process fluid having a first temperature;
• and
• a means for changing a temperature of the process fluid flowing through the fluid flow path from the first temperature to a second temperature different from the first temperature, the means for changing the temperature comprising:
• an inlet port adapted to be coupled to a source of media, the media having a control temperature different from the first temperature;
• an outlet port;
• an annular plenum integrally formed in the valve body between the inlet port and the outlet port and immediately adjacent a portion of the fluid flow path, wherein the annular plenum extends circumferentially around the portion of the fluid flow path;
• an inlet passage arranged to direct the media from the inlet port to the annular plenum, such that the annular plenum changes the temperature of the process fluid flowing through the portion of the fluid flow path from the first temperature to the second temperature;
• and
• an outlet passage arranged to direct the media from the annular plenum to the outlet port.

A valve control assembly for use in a fluid flow control device, the valve control assembly comprising:

• a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet, the inlet adapted to be coupled to a source of process fluid, the process fluid having a first temperature;
• an inlet port integrally formed in the valve body, the inlet port adapted to be coupled to a source of media, the media having a control temperature different from the first temperature;
• an outlet port integrally formed in the valve body;
• an annular plenum integrally formed in the valve body between the inlet port and the outlet port and immediately adjacent a portion of the fluid flow path;
• an inlet passage integrally formed in the valve body to direct the media from the inlet port to the annular plenum, such that the annular plenum changes a temperature of the process fluid flowing through the portion of the fluid flow path from the first temperature to a second temperature different from the first temperature;
• and
• an outlet passage integrally formed in the valve body to direct the media from the annular plenum to the outlet port,
• wherein the annular plenum extends circumferentially around the portion of the fluid flow path.

A valve control assembly for use in a fluid flow control device, the valve control assembly further comprising:

• a valve body defining an inlet, an outlet, and a fluid flow path extending between the inlet and the outlet, the inlet adapted to be coupled to a source of process fluid having a first temperature;
• a means for changing a temperature of the process fluid flowing through the fluid flow path from the first temperature to a second temperature different from the first temperature, the means for changing the temperature comprising an annular plenum integrally formed in the valve body immediately adjacent a portion of the fluid flow path, wherein the annular plenum extends circumferentially around the portion of the fluid flow path;
• a valve seat arranged in the valve body along the fluid flow path;
• a bonnet coupled to the valve body;
• and
• a valve cage arranged between the bonnet and the valve seat, the valve cage comprising one or more fluid passages arranged in the fluid flow path,
• wherein the annular plenum is arranged immediately adjacent the one or more fluid passages.