Arresting of Water Leakages in the Expansion Joints

Amount

Arresting of water leakage of 6 no’s expansion joints of 4.5mtr diameter penstock pipe (3no’s) by way of dismantling of existing expansion joints seal/flux packaging. The job includes unscrewing of M27x600mm long studs (80 no’s approx. for each of the 6 expansion joints) then dismantling of the existing flux packing.

Replacement of M27x600mm long studs, Material grade 8.8 HDG with 8 nuts and washers for 6 no. expansion joints (80 no’s approx. for each of the 6 expansion joints) as per site requirement

Supply and installation of new seals 32 mm square asbestos packing in expansion joints, (as per sample) of approximate length of 90 mtrs for each of the 6 expansion joints. The job includes placing of the new seals at proper place then tightening of the nuts and washers over the studs to ensure leak proofing at the expansion joints. The job includes greasing of expansion joints along with testing and commissioning of the comp. job.

Ultrasonic testing of all the three penstocks pipes and remedial action measures if any after testing