Choke (1) for a flange, with one application (2),which has a thread section (4) with an outer thread (5) to screw at least this thread section (4) into the course of the flange, characterized by the fact that the application (2) has an inlet section adjustable in its internal diameter (7)with several slits starting from its mouth opening and extending axially in the direction of the thread section (4) extending (11, 12), and that the shock (1) has a shell enclosing the mouth section (7) enclosing the thread section (3),which can be moved in axial direction relative to use (2) and which, depending on its axial position relative to use (2), contacts the nozzle section (7) axially differently and thus forces a different muzzle narrowing.
展开▼
