Non-return valve for a sanitary appliance comprises a valve seat arranged in a cylindrical housing, a valve body interacting with the valve seat, and a contact surface in the region of one end of the non-return valve

摘要

Non-return valve (3) comprises a cylindrical housing (4), a valve seat (6) arranged in the housing, a valve body (9) interacting with the valve seat, and a contact surface (12) in the region of one end of the non-return valve. An independent claim is also included for a sanitary appliance comprising the above non-return valve. Preferred Features: The contact surface is formed on the housing of the non-return valve.