H4VH-21-C IVIDUAL SOLUTIONS Flender GmbH THE RIGHT GEAR Helical gear reducers H4

Flender/Flender Gear Units/Helical gear reducers H4

Fully killed carbon steel shall be used in the manufacture of ittings. 7.2 Threaded joints, if used shall onform to American Standard taper as per ANSI 1.2.1 NPT. 7.3 Dimension of socket weld/ screwed fittings shall conform to ASM 1.1 7.4 Bore of socket welded fittings shall suit . . of pipe and its thickness. 7.5 Dimensions of butt welded carbon steel fittings shall be as per ASME 1.9 / MSS-SP-7, as applicable. 1 of 1 Page 5 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 7.6 Butt welding ends shall conform to ANSI 1.2/ API 5L. In cas of difference in thickness of matching ends, requirements of ASME 3.8 shall apply. 7.7 Integrally reinforced forged branch fittings such as sockolet, threadolet, weldolet, nippolet etc. shall be as per MSS-SP-9. Fittings not covered in ASME 1.9 and MSS-SP-9 shall conform to manufacturers stand ard. 7.8 Fittings thickness tolerances shall match pipe thickness tolerance. 8.0 BENDS 8.1 Unless otherwise specified for terminal piping, the elbow of ra dius =1.5 shall only be used. 8.2 The radius of cold field bends shall not be less than 3 times the nominal diameter for pipes upto nominal diameter of 1 and shall not be less than 4 times the nominal diameter for pipes of nominal diameter of 1 and above. Limited use of long radius bends ( = 6D) may be permitt ed for reason of space constraints. 9.0 FLANGES 9.1 Flange rating shall be same as ANSI 1.5/MSS-SP-4/ 1.4 eries as specified. 9.2 Dimensions of flanges shall be in accordance with ANSI 1.5/ 1.4 Series , as applicable. 9.3 Neck of Weld Neck (WN) flanges suit pipe bore and thickness. 9.4 Bore of Socket Welded (SW) flanges shall suit pipe .. and its thickness. 9.5 Threads for screwed flanges if used shall conform to American tandard taper as per ANSI 1.2.1 NPT. 9.6 Sizes for blind flanges shall be indicated