Annual Maintenance of Water...

20.63.1//Providing, lowering, laying in trenches, aligning, fixing in position and jointing Ductile Iron (DI) ISi marked K-9 grade S&S pipes as per 15:8329- 2000 (amended up to date), with internal cement mortar lining for potable water with rubber ring (EPDM/SBR) joints as per IS: 5382-1985 (excluding special accessories) complete including all material, labour, hydraulic testing and commissioning as per Technical Specifications and as per direction of Engineer. Note: E/W to be measured and paid separately. 1. 100 mm i/d

20.63.2// Providing, lowering, laying in trenches, aligning, fixing in position and jointing Ductile Iron (DI) ISi marked K-9 grade S&S pipes as per 15:8329- 2000 (amended up to date), with internal cement mortar lining for potable water with rubber ring (EPDM/SBR) joints as per IS: 5382-1985 (excluding special accessories) complete including all material, labour, hydraulic testing and commissioning as per Technical Specifications and as per direction of Engineer. Note: E/W to be measured and paid separately 2. 150 mm i/d

20.66.1// Cutting DI pipe and chipping or filling the surface to a uniform finish 1. 100 mm i/d

20.66.2// Cutting DI pipe and chipping or filling the surface to a uniform finish 2. 150mm i/d

20.68.1// Providing, lowering, laying in trenches, aligning, fixing in position and jointing at all level/depths Ductile Iron (DI) standard specials plain /flanged/ socketed confirming to IS9523-2000 with rubber ring (EPDM/SBR) joints such as tees, bends, tapers, caps etc. with in trenches in DI pipe line complete including all material, labour, testing and commissioning along with pipe line as per Technical Specifications and as per direction of Engineer. 1. Up to 300mm dia

4.16.1.2// Excavating trenches of required width and depth for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surpluls excavated soil as directed, within a lead of 50 m. 1.2. All kind of soil pipes, cables, etc. exceeding 80 mm dia but not exceeding 300 mm dia.

5.56.1// Dismantling C.I pipes including excavation and refilling trenches after taking out the pipes, manually by mechanical means breaking lead caulked joints, melting of lead and making into blocks including stacking of pipes and lead at site within 50 meter lead as per direction of Engineer-in-charge: 1. Upt to 150 mm diameter.

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