This Korean Industrial Standard specifies the general rules for inspection of valves specified in KS B (Mechanical Engineering) Division. The rules are also applicable to other valves of 63 K or under in nominal pressure for general use. Remarks 1. The units and numerical values given in { } in this Standard are in accordance with the traditional units, and are appended for informative reference. 2. The nominal size given in ( ) in this Standard are of nominal size series B.