Pipelaying Tender-VOL II - WorleyParsons.com

EPMC SERVICES FOR REWARI – KANPUR PIPELINESPECIFICATION FOR CASING INSULATORS AND END SEALS FOR PIPELINE SYSTEM3. DESIGNThe seals shall be suitable for the casing and carrier pipe diameters as applicable for eachcase. The casing end seal shall be flexible to cater for the expansion and contraction of carrierand casing pipes and shall be able to tolerate both angular and concentric misalignment ofcasing pipe without loss of sealing efficiency.The design of the casing end seals shall permit easy installation of the seal to the casedpipeline crossing.It shall provide moisture-proof seals when installed for the entire anticipated life of the buriedpipeline.Manufacturer shall obtain prior approval from WP/HPCL on casing end seals design/drawings.n:\513-mh-2145-rkpl\11 engineering\11.8 pipelines\06 spec\specification for casing insulators and end seals forpipeline systems\mh2145-c000-pl-spc-0022.docMH2145-C000-PL-SPC-0022 RevA Page 13 of 18