Lapping Process for Valves Test Requirements: To Lap valve body & valve top plate Component: Valve Machine Type: Lap Plate: Kemet Copper Abrasive Type/Grade: Kemet Liquid diamond 6 Micron Type K standard Additional Pressure: 4 Kg The Valve Top plate was placed into the center of the conditioning ring. The hand weight used was faced using a Kemet facing kit consisting of a non-skid rubber pad. This pad can be ?xed to the bottom surface of the hand weight. The hand weight with the pad is then placed directly on top of the valve which has been positioned inside the conditioning ring. Lapping can occur and the parts will not skid out of position. The valve top plate was lapped for a total time of 5 minutes. Flatness: 1 light band 0.00029mm Ra 0.0455µm Self adhesive foam tape was placed rou

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