Patent ID: 8365760

Claim:
A slide valve, comprising: a housing having a passage opening, a flange and grooves on one side of said passage opening; a slider plate movable partly within said housing to open and close said passage opening; a lateral seal arranged in each of said grooves and each of said lateral seals engaging one side of said slider plate, at least one of said lateral seals being in the form of sealing packing that has an innermost sealing layer made of woven graphite yarn; a coating forming a temperature barrier arranged on an inside of said housing, an outside of said housing and said slider plate, said coating comprising a high temperature-resistant layer and a tumescent layer; a hood coupled to said flange and having a covering part; and a drive mechanism for moving said slider plate to open and close said passage opening, said drive mechanism comprising a drive spindle and a spindle nut coupled to said slider plate, one end region of said drive spindle being rotatably mounted to said flange of said housing and an opposite end region of said drive spindle being mounted on said covering part of said hood.