For Fog Agroteknik A/S, Dan hill plast produces ventilation valves in sizes Ø110 and Ø160.
The valve house and lid are casted as one part and divided subsequently by a cnc-machine.
Inside the Ø110 valve, a PE ball is put and inside the Ø160 valve, a casted cone is placed. After the items are placed inside the valve, the lid is screwed on and the valve is ready to be mounted at the end user.