US 11,746,910 B2
Plug integrated staged valve trim assembly and fluid control valve comprising same
Cory J. Hagen, Johnston, IA (US); and Katherine N. Bartels, Ames, IA (US)
Assigned to FISHER CONTROLS INTERNATIONAL LLC, Marshalltown, IA (US)
Filed by FISHER CONTROLS INTERNATIONAL LLC, Marshalltown, IA (US)
Filed on Jul. 1, 2021, as Appl. No. 17/365,405.
Claims priority of provisional application 63/047,340, filed on Jul. 2, 2020.
Prior Publication US 2022/0003326 A1, Jan. 6, 2022
Int. Cl. F16K 3/26 (2006.01); F16K 3/24 (2006.01); F16K 39/04 (2006.01); F16K 3/314 (2006.01); F16K 3/30 (2006.01); F16K 27/04 (2006.01); F16K 27/08 (2006.01)
CPC F16K 3/262 (2013.01) [F16K 3/246 (2013.01); F16K 3/267 (2013.01); F16K 3/30 (2013.01); F16K 3/314 (2013.01); F16K 27/041 (2013.01); F16K 27/08 (2013.01); F16K 39/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A fluid valve comprising:
a valve body having a fluid inlet and a fluid outlet;
a fluid passageway connecting the fluid inlet and the fluid outlet;
a trim assembly located within the fluid passageway, the trim assembly controlling fluid flow through the fluid passageway, the trim assembly including a valve plug having integrated staged pressure recovery including a first pressure recovery stage and a second pressure recovery stage;
a plug guide mounted to the valve body for guiding the plug, the plug guide extending into and surrounded by a portion of the fluid passageway;
wherein the valve plug includes a hollow central chamber forming a portion of the fluid passageway, a wall surrounding the hollow central chamber, and a first and a second plurality of openings through the wall, the first and second pluralities of openings separated by a portion of the wall;
wherein the first plurality of openings form the first pressure recovery stage as fluid enters the hollow central chamber through the first plurality of openings, and the second plurality of openings form the second pressure recover stage as fluid exits the hollow central chamber through the second plurality of openings.