SPECIAL REPAIR (E/M) FOR REPLACEMENT OF OLD UNSV GI/CI PIPE LINES FROM MAIN PUMP HOUSE TO HARSHAN ENCLAVE OVER HEAD TANK AT PANGODE MIL STN UNDER GE (ARMY) TRIVANDRUM

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc, or for taking up and laying of water pipes etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in hard/dense soil complete all as specified and directed

Returning and filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick in hard/dense soil complete all as specified and directed.

Removing excavated materials to a distance note exceeding 50 m and depositing where directed at a level 1.5 m above starting point complete all as specified and directed.

Dismantling and taking out old unserviceable CI Specials/fittings of 150m dia complete all as specified and directed.

Dismantling and taking out old unserviceable brick masonary valve chamber size 1200x 1200 x 1000mm complete all as specified and directed.

Taking down old existing CI/GI pipeline of 150/100 mm dia complete all as specified and directed

Taking down old existing Sluice valve of size 150/100 mm bore dia complete all as specified and directed

Supply and laying, jointing and testing Ductile iron (DI) pipe of 150 mm bore with spigot &socket ends centrifugally cast conforming to IS-8329 class K-9 with inside surface with cement mortar lining suitable for and including rubber ring joint in any length laid in trenches complete all as specified and directed

S & F DI pipe fittings confirming to IS 9523 K12 for spigot and socket pipes class K9 upto 150 mm bore such as bends ( any type radius and angle) , tappers any type (straight bend increasing, decreasing or double socket etc ) TEE pieces , single branch, Y junction, double branch cross collars, caps and plug etc complete all as specified and directed

S& F in repair cast iron sluice valve 150mm dia bore heavy duty with steel spindle and bronze gate and seating rings both end flanged and drilled comprising IS 14846-2000, type PN 1.6 ISI marked including suitable rubber gasket joints, grid packings with suitable nuts and bolts and grouting materials including taking down complete all as specified.