Valve used as a return valve of a vehicle comprises an aluminum housing with an aluminum valve seat for a flap which rotates on a drive shaft, and a plunger seal

摘要

Valve comprises an aluminum housing (5) with an aluminum valve seat (6) for a flap (2) which rotates on a drive shaft (1), and a plunger seal (3). The valve seat has a metallic seal (4) on its surface facing the flap. The seal has a thickness of 5-30 microns and is resistant to temperatures of 500-800 degrees C.