BLOW MOLDING VALVE FOR A BLOW MOLDING VALVE BLOCK

摘要

A blow molding valve (400) is provided. The blow molding valve (400) is adapted to be positioned within a blow molding valve block (401) including a control pressure chamber (408), a process gas chamber (450), and a piston bore (413). The blow molding valve (400) includes a control piston (402) movable within the control pressure chamber (408) and a portion of the piston bore (413), the control piston (402) being in fluid communication with a control pressure supply. A diaphragm (405) is provided and positioned between the process gas chamber (450) and the control piston (402) such that the diaphragm provides a fluid tight barrier between the process gas chamber (450) and the control piston (402).