Electroless valve for pressure control of milk frother of coffee machine, has guide unit, lock body movably placed in guide unit, and valve inflow, where sudden enlargement of pressure working surface takes place on lock body

摘要

The electroless valve has a guide unit (1), a lock body (2) movably placed in the guide unit, and a valve inflow (3), through which the locking body with a fluid flows against. The valve inflow is closed by the locking body and the valve inflow is opened away by fluid-pressure-related movement of the lock body in the guide unit, so that a flow through of the valve with the fluid is enabled. A sudden enlargement of the pressure working surface takes place on the lock body, when a predetermined fluid pressure exceeds in the valve inflow, which is denoted as opening pressure.