Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1991-02-28
1992-02-18
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137549, 138 44, F16T 134
Patent
active
050885189
ABSTRACT:
A steam restricter device of the present invention is designed for retrofit to an existing steam trap of the type including a bowl-shaped chamber-defining member having an opening in it for admitting steam and condensate, and a drain for passage of condensate from the chamber to a condensate return. The device includes a body having an upper portion and a lower portion of smaller outer diameter than the upper portion. The lower portion may be slidingly received in the drain without rotation. The body has a nozzle formed in it which is sized to permit passage of condensate, but to inhibit passage of steam. The upper portion has an intake in it which provides communication from the chamber to the nozzle, and the lower portion has an opening in it which provides communication from the nozzle to the condensate return. A generally tubular bushing fits around the lower portion of the body and sealingly engages a wall in the drain for sealing between the lower portion and the wall of the drainage opening. A filter cage is located by engagement with the body, upon assembly therewith, in a position in which all communication from the chamber to said opening in the upper portion is blocked except through the filter cage.
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Nicholson Robert B.
Stamatakis E. M.
Cohan Alan
Steam Tech, Inc.
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