Tap piston with tap valve for dispensing fuel to road vehicles

摘要

The tap piston with a tap valve is for the dispensing of fuel to road vehicles. It has a fill tube extending out of the tap valve housing with a sensor conduit. On the tap valve housing there is a connection device for a tap hose connected to the tap pump. A switch device (7) is provided for the safety switching of the tap valve, and automatically is operable on shutting off the tap pump and closing the tap valve when the sensor conduit of the fill tube registers a full tank. The switch device has a control membrane (13) fitted in a housing (14) of the tap valve housing and which divides the membrane housing part (14) into a vacuum chamber (12) and a compensation chamber (15).