B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
122/109
B01F 3/04 (2006.01)
Patent
CA 1062566
ABSTRACT OF THE DISCLOSURE An automatically regulated variable orifice desuperheater valve is disclosed which includes improved constructional features providing for a more compact installation then heretofore, one which is more reliable in operation and which is at the same time more economical to construct. The desuperheater unit has a welded-closed housing, which includes a concentrically mounted valve guide structure. The lower portion of the desuperheater valve housing structure is arranged so that, after the unit is welded closed, with the valve guide structure contained therein, the valve element may be inserted into the housing from the bottom or inlet opening, followed by a shouldered sleeve which functions as the valve seat. The sleeve is seated against a facing shoulder in the inlet opening of the valve housing, and is secured against such shoulder by appropriate means such as welding. The housing surrounding the valve and valve guide is of minimum height, suffi- cient to accommodate the flow of steam and injected water around the valve and valve guide, and quickly converges the flow of mate- rials back to the diameter of the main piping systems. The con- struction of the new device is more rugged and compact than previ- ous designs, significantly less costly to construct, and at the same time superior in performance.
289372
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