H4DH-7-C ity air andor high humidity andor heavy air pol Helical gear Reduction Box H4

Flender/Flender Gear Units/Helical gear Reduction Box H4

ig. 4 of this specification. The no tch shall be perpendicular to the roller surface. The test specimens width shall depend upon the pipe wall nominal thickness as following : ------------------------------------------------------------------------------------------------------- Nominal wall thickness in Test Specimens width in ------------------------------------------------------------------------------------------------------- > 1 2 1 2 ------------------------------------------------------------------------------------------------------- > 9.5 and 1 7 . 5 1 of 1 STANDARD TECHNICAL SPECIFICATION MECON LIMITED REGD. OFF: RANCHI 8 OIL & GAS SBU, DELHI DOCUMENT NO. Page 5 of 6 TITLE MEC//0/2/0 REVISION : 0 PIPING FABRICATION AND ERECTION EDITION : 1 ------------------------------------------------------------------------------------------------------- 7 and 9 . 5 5 ------------------------------------------------------------------------------------------------------- < 7 2.5 ------------------------------------------------------------------------------------------------------- 1.6.2 The test shall be carried out as indicated in ISO 1 "Beam Impact Test -notch. Test pieces shall be immersed in thermostatic bath and maintained at the test temperature for at least 1 minutes. They shall than be placed in the testing machine and broken within 5 seconds of their removal from the batch. 1.6.3 Requirements The impact energy shall be greater or equal to :- ------------------------------------------------------------------------------------------------------- Test Specimens in Average of Minimum mm Three specimens Single Value ( ) ( - 2 ) ( 1 ) ------------------------------------------------------------------------------------------------------- 1 0 2 7 2 2 7 . 5 2 1 . 5 1 7 . 5 5