B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
251/39
B08B 9/02 (2006.01) B01J 8/00 (2006.01) B01J 8/18 (2006.01) B01J 8/24 (2006.01) B65G 53/40 (2006.01) F16K 41/00 (2006.01)
Patent
CA 1313521
ABSTRACT PLUG VALVE A plug valve (2) has a plug closure member (3) for sealing off the open end (34) of a conduit (17) and thereby inhibiting flow of a first fluid through the conduit. The plug closure member (3) is connected to a hollow stem tube (5), with a channel (18) for the flow of a second fluid, (a lift medium), extending through the hollow stem tube (5) and the plug closure member (3). The plug closure member (3) and hollow stem tube (5) are movable in a guide tube (7) toward and away from the open end of the conduit (17) so that the plug closure member (3) is seatable to close the open end (34) of the conduit. The improvement is provided by a sealing assembly (40) disposed between the hollow stem tube (5) and guide tube (7) for inhibiting the flow of fluid, fluidized catalysts, or purse medium downward past the sealing assembly and for inhibiting the flow of lift medium or feedstock upward past the sealing assembly. A spacer (74) for a purge channel is provided for even distribution of a purge medium.
575061
Mcfadden Fincham
Triten Corporation
LandOfFree
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