Spray unit for paint or glue has a valve housing with a control piston and a blocker that operates the unit

摘要

The spray unit has a valve housing (10) with a control piston (19) and a blocker (20,21,22) that operates the unit. The unit has a pneumatic fluid or can be hydraulic and has a closing unit e.g. a ball (33,42). The blocker has a pressure spring (32,41) that brings the closure unit together. Each closure blocker has a spring attached and an O-ring (34,43).