H1HH-7-C flender colombia Helical gear box H1

Flender/Flender Gear Units/Helical gear box H1

. 2.4 In addition, MECON specifications for various piping and pipeli ne materials shall also be applicable. 3.0 MATERIAL SPECIFICATION Piping material specifications re classified for the general urpose of selection of material for the class of services. The maximum de sign pressure and design temperature together with the fluid in line governs the selection of material specifications. Deviation of materials fr om class specifications may occur due to specific design condition. The se deviations are permissible if they are equal or better than the individual class requirements. 4.0 CLASS DESIGNATION CODE The piping class designation consist of three digits numbering system made up of letter, number and letter . . A1A, B1A, D1A, etc follows: First letter indicates ANSI class rating . . -Class 1 -Class 3 -Class 6 1 of 1 Page 4 of 9 PIPELINE LAYING AND TERMINAL WORKS FOR NORTH EAST GAS GRID PIPELINE PROJECT Doc. No. MEC/2UU/0/2//0/1, R0 MECON LIMITED The middle number indicates differences in the specification within the same rating and material. The last letter indicates type of material . . -Carbon Steel 5.0 PIPELINE The material for linepipe shall be as per the requirements of pecification as indicated in Table-1 and Table-2. 6.0 PIPING 6.1 Carbon steel pipe shall be made by open hearth, electric furnac or basic oxygen process only. The steel used shall be fully killed and ade with fine grain structure. The grade and wall thickness of various izes of pipes shall be as per piping material specification for the applicabl class. 6.2 Pipe dimension shall be in accordance with ANSI 3.1 for car bon steel pipes and ANSI 3.1 for stainless steel pipes. 6.3 All pipe threads shall conform to American Standard taper as pe ANSI 1.2.1 NPT, unless otherwise specified. 6.4 For butt weld end, bevel shall be in accordance to ANSI 1 6.2/ API 5L as applicable. 7.0 FITTINGS 7.1