Abstract: A rotatable valve allows the flow of a fluid to be switched between at least two different paths by rotating an element within the valve. Advantageously, both the housing of the valve and the rotatable element within the housing are formed of glass, making the valve resistant to corrosion. The housing has at least three openings for connecting to at least three different conduits. By rotating the rotatable element, a flow path can be created between a first of the conduits and either a second or a third one of the conduits. Thus, the path between the first conduit and the second conduit forms a first path, while the path between the first conduit and the third conduit forms a second path.

Abstract: A rotatable valve allows the flow of a fluid to be switched between at least two different paths by rotating an element within the valve. Advantageously, both the housing of the valve and the rotatable element within the housing are formed of glass, making the valve resistant to corrosion. The housing has at least three openings for connecting to at least three different conduits. By rotating the rotatable element, a flow path can be created between a first of the conduits and either a second or a third one of the conduits. Thus, the path between the first conduit and the second conduit forms a first path, while the path between the first conduit and the third conduit forms a second path.