Landing - Import export

Application The VD4HD/-30° can be used for refacing the external conical landing face on valve cages. Capacity Max. refacing diameter 250mm Angle of transverse feed -30° Features Drive unit and gear head of the VD4HD/-30° are identical with the drive unit and gear head of the VD4E Valve Seat Refacing Machine. If a VD4HD is already on hand, only the D4/-30° adapter head is required for refacing the external conical landing face on valve cages. The D4/-30° adapter head is bolted to the gear head in place of the seat refacing adapter head. The pilot used for valve seat refacing can be also used for centering the VD4HD/-30°.