Valve head

摘要

The control spindle (2) has a knob (21) on top and incorporates a ball (23) just above its center fitting into a bearing sleeve (1) and engaging a holder ring (91) and an O-ring (93). An O-ring fits into a groove (16) in the top of the sleeve. A nut (8) holds a housing (7) on the outside of the sleeve. A guide member (3) with a conical bore accommodates the lower end of the spindle. The end fits into a control disk (4) which slides over a valve plate (5). To control the air flow.