Gate Valve And Ball Valve Lapping Works Valve Maintenance works Lapping is the process of cleaning the control valve for maintenance purposes. The lapping is done with compounds that has roughness, and used to clean valve disc and nozzle seats etc., Every seat and disc from a relief valve or block valve , in general, must be subjected to lapping . Gate Valve Service----- Valve Lapping is basically sanding down the surface of the Valves (which allow fuel and air to flow in, and exhaust to flow out) and the Head (Holds the Camshafts and valves ) where they make contact with each other. Lapping is process in GATE VALVE where Two mainly parts That is 1. Gate DISC 2. Gate SEAT On both face we making proper contact face by help rubbing process. if any one parts more cuts face in running time than leakage will sta...
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