KOMBINERAD MUNSTYCKSVENTIL FOR AVSTENGNING OCH STROMNINGSREGLERING FOR ANVENDNING I EN FORMSPRUTMASKIN AVSEDD FOR FORMSPRUTNING AV PLAST

摘要

A combined nozzle shut-off and flow control valve for use with a plastic molding machine is disclosed comprising a valve body having a bore communicating with outlet passage means of reduced diameter and axially aligned with said bore and radial inlet passage means; a valve stem, having an inner axial passage, axially positioned within said bore and capable of relative axial movement therein; nozzle valve rod means slidably positioned in said valve stem inner axial passage and aligned to register in to effect closure of said outlet passage means; the lower surfaces of said bore and said valve stem having parallel annular surfaces providing a gap of variable width to effect flow control through said valve.