REPAIR AND REPLACEMENT OF EXISTING WATER SUPPLY PUMPING LINES AND CONNECTED WORKS AT ZAKHAMA MIL STN

Amount

Excavation in trenches not exc 1.50 m wide and not exc 1.50 m deep for foundation, laying of pipe or for shafts, wells cesspits,man holes etc not exc 10 Sqm on plan and n exc 1.5m in depth and getting out in hard and dense soil complete all as specified and as directed.

Returning, filling, in including spreading, levelling, watering and well ramming in layers n.exc. 25cm thick complete all as specified and as directed.

Removing excavated soil to distance not exc. 50 m and depositing where directed at a level not exc. 1.5 m above the starting point etc complete all as specified and as directed.

Taking up 150mm bore GI/CI/DI water main including all fittings with any type of joint from trenches complete all as specified and as directed. Note for item No 4&5: Excavation and earth work will be measured and paid separately.

Taking up 100mm bore GI/CI/DI water main including all fittings with any type of joint from trenches complete all as specified and as directed.

Supplying & laying of GI tubing 150 mm bore, ISI Marked conforming to IS1239 Part-I 2004, medium grade with all fittings, laid in trenches complete all as specified and as directed.

Supplying & laying of GI tubing 100 mm bore, ISI Marked conforming to IS1239 Part-I 2004, medium grade with all fittings, laid in trenches complete all as specified and as directed.

Relaying old serviceable 150mm bore GI pipes and connections as obtained from taking down including provision of new fittings, in new or old position laid in trenches after cleaning by suitable chemical complete all as specified and as directed.

Relaying old serviceable 100mm bore GI pipes and connections as obtained from taking down including provision of new fittings, in new or old position laid in trenches after cleaning by suitable chemical complete all as specified and as directed.

Cutting existing CI/GI/DI pipe line by necessary tools without damaging the existing pipe lines as required upto 150 mm dia for insertion of new tees, branches, etc complete all as directed.

S&F in repair for threaded GI flange of dia 100mm with rubber gasket,nuts and bolts, washer and welding, threading if required, complete all as directed.

S&F in repairs of threaded GI flange of dia 150mm with rubber gasket,nuts and bolts, washer and welding, threading if required, complete all as directed.

S&F in repairs of 100mm bore CI Double Orifice Kenectic Air Valve, Rubber Float, IS:14845, ISI marked,type DK, flanged end with necessary connection, complete all as directed.

Supply, laying, testing, jointing of centrifugally cast(Spun) ductile iron pressure pipe socket and spigot end, 100mm dia , class K-9, confirming to IS-8329/2000(latest revision) blast furnace slag cement with portland cement properties suitable for push-on - joint with inside cement mortar lining, internal metallic zinc coating and external black bitumen coating, duly ISI marked and making joints using EDPM/nitrile rubber gasket in trenches/under road/surface etc including making good disturbed surfaces of road /pavement/PCC surface as required complete all as specified and as directed. Note for item 14 and 15:Cost of EDPM/nitrile rubber gasket are inclusive in quoted rate.

Relaying,testing, jointing of old serviceable 100mm bore CI/DI pipes and connections as obtained from taking down including provision of new/old fittings, in new or old position laid in trenches after cleaning by suitable chemical complete all as specified and as directed. Note : New fittings shall be measured and paid separately.

S&F special for spigot and socketed DI pipes as per IS 9523/2000,class K-12,PN-10, inside cement mortar lining with internal zink mettalic coating and external black bituminous coating for replacing the damaged/unsv CI/GI /DI fittings for pipes of size 80 to 200mm bore such as bends(any type,radius and angle) tapers any type (straight, bend, increasing,decreasing or double socket, etc), Tee pieces single branch, 'Y' junction, double branch, cross(all sockets or socket and spigot), collars caps and plugs complete all as specified and as directed.

Rameshwar Prasad (BID ID -3322543)