Three way valve

A valve comprising a plurality of valve bodies, each of said bodies being formed with a central cylindrical longitudinally-extending cavity, a flow-control spool disposed in each of said cavities for sliding reciprocating movement, each of said flow-control spools being formed with passages, means defining a material inlet passage in the wall of each of said bodies extending from the exterior thereof to its associated cavity, means defining a plurality of discharge passages in each of said bodies communicating with the associated cavity and spaced angularly about the axis of the associated cylindrical cavity from the associated inlet passage and spaced axially along its associated cavity on either side of the associated inlet passage, each of said bodies being formed with spaced apart locking grooves to form spaced apart joint grooves when said bodies are in juxtaposition, and spaced apart elongated locking I-shaped beams disposed in said joint grooves respectively in tight fitting relation for locking said bodies to one another when said bodies are disposed in juxtaposition, each of said joint grooves having an I-shaped cross-sectional area, each of said locking I-shaped beams being adapted to be inserted endwise into its associated joint groove as a sliding rail, each of said locking grooves being defined by projecting means in the wall of its associated body engageable with an abutment on the elongated locking I-shaped beam disposed therein for preventing movement of the associated body away from the beam disposed therein, each of said locking grooves being defined in its associated body by a recess, wherein each of said projecting means is formed with a flange overhanging its associated recess, and the abutment means on each of said beams including an upstanding wall disposed along one side of its associated recess.