REPAIR/MAINT OF EXTERNAL WATER SUPPLY and DISTRIBUTION SYSTEM PIPELINES AND MISC WORK FOR DGRE UNDER AGE (I) R and D MANALI.

Excavating trenches in ordinary rock of required width for pipes exceeding 80mm dia but not exceeding 300mm dia including excavation for sockets, depth upto 1.5m, including getting out the excavated materials, returning the soil as required in layers not exceeding 20cm in depth, including consolidating each deposited layers by ramming, watering etc., stacking serviceable material for measurements and disposal of unserviceable material as directed, within a lead of 50 m complete all as specified and directed by Engr-in-charge.

M&L for cutting exixsting road/PCC surfaces not more than 150mm thick,removing for laying of pipes,making good with PCC 1:3:6 type C1 20 mm graded aggregate to match with the existing surface complete all as specified and directed by Engr-in-charge. Note:excavation and earthwork below 150mm depth and PCC 1:3:6 will measured and paid under relevent items of this schedule.

Supplying, laying, jointing, testing and commmisioning of DI Pipe of 100mm bore as per IS 8329, class K-7 with inside cement mortar lining with spigot and socket ends laid in trenches all including taking out of old unsv rusted/damaged pipes of any type complete all as specified and as directed at site. Note : - Joints shall be measured and paid separetely

Material and Labour for CI fittings/specials upto 100mm bore such as Tees, bends (any type, radius and angle) tapers any type, collars, tail pieces, caps and plugs of the following sizes confirming to IS: 1538-1993 complete all as specified and directed by Engr-in-Charge.

Material and Labour for DI fittings/specials upto 100mm bore such as Tees, bends (any type, radius and angle) tapers any type, collars, tail pieces, caps and plugs confirming to IS: 9523 complete all as specified and directed by Engr-in-Charge.

Material and labour for Run lead of 100mm bore joint including jointing material for CI/DI pipe of size/bore as specified and directed.

Material and labour for Rubber Gasket Joint (Tyton Joint) of 100mm bore including jointing material for DI/CI pipe of following size/bore :-

M&L for Flanged Joints of 100mm bore with rubber or fibre board gasket including nuts, bolts and double washers complete all as specified and directed by Engr-in-Charge.

Supply, fixing, jointing & testing Cast Iron Sluice Valve of 100mm bore size, ISI Marked, flanged ends drilled pressure rating PN-1.0, PD Short body, confirming to IS 14846 -2000, having stainless steel spindle with cast iron operation wheel at top including taking out unsv sluice valve complete all as specified and as directed at site by the Engr-in-Charge. Note:- Flanged joints complete with jointing material shall deemed to be included in the unit rate of this item.

Supply, fixing, jointing & testing Cast Iron Sluice Valve of 150mm bore size, ISI Marked, flanged ends drilled pressure rating PN-1.0, PD Short body, confirming to IS 14846 -2000, having stainless steel spindle with cast iron operation wheel at top including taking out unsv sluice valve complete all as specified and as directed at site by the Engr-in-Charge. Note:- Flanged joints complete with jointing material shall deemed to be included in the unit rate of this item.