Packingless gate valve and actuator assemblies

In a gate valve and actuator assembly, a valve housing having a through fluid flow passage, means defining a transverse gate valve chamber in said housing, a gate valve member slidably mounted in said chamber between positions where it permits or blocks flow through said passage, and an actuator lever pivotally mounted on said housing for rocking about an axis substantially parallel to the direction of flow in said passage and operably connected to said gate valve member, said valve housing comprising housing members rigidly connected together with relatively thin spacer strips at opposite sides of said passage disposed between the housing members and defining said gate chamber, and said housing members having connector flanges between which said spacer strips are clamped with one of said spacer strips projecting from said housing, said gate member being plate-like and slidably guided by said strips, and said lever being pivotally mounted at one end on said one spacer strip and being intermediately pivotally connected to the trailing end of said plate-like gate member.

In a gate valve and actuator assembly, a valve housing having a through fluid flow passage, means defining a transverse gate valve chamber in said housing, said valve housing comprising housing members rigidly connected together with spacer means at opposite sides of said passage disposed between the housing members and defining said gate chamber, a gate valve member slidably mounted in said chamber between positions where it permits or blocks flow through said passage, and an actuator lever pivotally mounted on said housing for rocking about an axis substantially parallel to the direction of flow in said passage and operably connected to said gate valve member, one of said spacer means projecting from said housing and being formed with at least one socket for pivotally mounting said lever.

In a gate valve and actuator assembly, a valve housing comprising two housing members rigidly connected together and having a through fluid flow passage, means defining a transverse gate valve chamber in said housing comprising two flat metal spacer strips of the same thickness clamped between said housing members and laterally defining said chamber between their opposed edges, a thin flat gate valve member having a thickness substantially equal to that of said strips slidably mounted in said chamber between positions where it permits or blocks flow through said passage, one of said strips projecting beyond said housing members and being formed with an edge socket, and an actuator lever having one end detachably pivotally disposed in said socket whereby said lever may be pivotally mounted on said housing for rocking about an axis substantially parallel to the direction of flow in said passage and said lever being operably connected to said gate valve member.

In a gate valve and actuator assembly, a valve housing having a through fluid flow passage, a rigid extension on said housing, means defining a transverse gate valve chamber in said housing, a gate valve member slidably mounted in said chamber between positions where it permits or blocks flow through said passage, an actuator operably connected to said gate valve member, and a row of open sided recesses along said housing extension each adapted to detachably pivotally receive said lever whereby said lever may be selectively pivotally mounted on said housing at any of a plurality of different distances from said passage for staged displacement of said valve member.