Lee Shayron Treichel

US Patent:

53017129, Apr 12, 1994

Filed:

Jul 12, 1993

Appl. No.:

8/090402

Inventors:

Lee E. Treichel - Fulshear TX
Gary J. Baumgartner - Leawood KS

Assignee:

Tapco International, Inc. - Houston TX

International Classification:

F16K 2504

US Classification:

137375

Abstract:

Disclosed is a slide valve for high temperature and/or abrasive service having a metal shell and a liner of refractory material forming a flowway having an inlet and an outlet and an orifice opening between them. A side opening closed by a removable bonnet intersects the flowway at the orifice opening and is provided with grooves extending transversely from the side opening to each side and beyond the orifice opening and forming upstream and downstream guide and slide shoulders. An orifice plate with an orifice is slidable into and out of position through the side opening, a slide or disc is slidable in the guides for movement to open, closed, and throttling positions. The orifice plate has a seal around its orifice which sealingly engages the upstream shoulder.