The main- and section valves are electrically or pneumatically operated.
The CHD sprayers are standard equipped with a ongoing liquid circulation and the section valves are integrated into the booms. The section valves can open or close quickly, what results in reducing duplication of unsprayed parts.
For an even faster response, the machine can be equipped with air lockable caps. This system ensures that the fluid pressure in the spray nozzle flows directly along the pipe, causing no places in the entire machine where spray is to settle.
The ongoing liquid circulation pressure is adjustable and ensures that direct high pressure spray can be started. The ongoing liquid circulation also provides for an equal pressure in the sprayboom, which prevents cone beam formation.