SPECIAL REPAIRS / REPLACEMENT OF EXTERNAL PVC / RUSTED GI PIPELINES TO PP-R PIPELINES AT KENDRIYA VIDYALAYA, AFS SURYALANKA

Amount

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out in soft/ loose soil, for under ground electric cable, pipes etc. all as directed and specified.

Returning, filling-in, including, spreading, watering and well ramming in layers not exceeding 25 cm thick each, in soft /loose soil complete all as specified & directed.

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

Cutting existing road/PCC for laying of PP-R pipe including necessary earth work, excavation exc 600mm depth but not exc 1 mtr depth, wide exc 450mm but not 800mm including making existing surface with PCC 1:2:4 type B1 using 20 mm aggregate, thickness of concrete is 150mm and making good the disturbed surface to match with existing surface complete all as specified and directed. Note :- The tenders shall take into consideration for following points while quoting his rate for this item and the unit rate is deemed be included for :- i. Earth work excavation in any type of soil ii. Returning filling in , including spreading , leveling , watering and well ramming in layers not exc. 25 cm thick complete all as specified and as directed. iii. Removing excavated material to out side MD land iv. 150 mm thick PCC 1:2:4 type B1 as in road.

S&F in replacement of 63 mm outer dia, ISI marked 3-layer PP-R polypropylene random copolymer pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings including nipple,FTA of suitable size required for making connection, including suitable reducer required laid in trenches or floors etc. including taking down existing unservieable PVC/GI pipes, complete all as specified and as directed.

S&F in replacement of 32 mm outer dia, ISI marked 3-layer PP-R polypropylene random copolymer pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings fixed complete to walls, ceilings or in floors etc. including nipple, FTA of suitable size required for making connection, including suitable reducer required including taking down existing unservieable PVC/GI pipes, complete all as specified and as directed.

S & F in replacement of CI Sluice valve 100 mm dia, Class PN 1.6 complete set as per site requirement including required specials for connection with PP-R pipes complete all as specified and as directed.

S&F in replacement of PP-R Gate valves (brass insert) of Size 32 mm complete all as specified and as directed.

S&F PP-R Gate valves (brass insert) of Size 63 mm complete all as specified and as directed.

S&F in replacement of PP-R tank connector of Size 32 mm dia complete all as specified and as directed.

S&F in replacement of PP-R Brass FTA of Size 32 mm x 1/2" complete all as specified and as directed.

S&F in replacement of PP-R Brass FTA of Size 32 mm x 3/4" mm complete all as specified and as directed.

S&F PP-R Reducing Tee of size 63 x 32 x 63 mm complete all as specified and as directed.

S&F PP-R Equal Tee of size 32 mm complete all as specified and as directed.

S&F PP-R Equal Tee of size 63 mm complete all as specified and as directed.

S&F PP-R End Cap of Size 63 mm complete all as specified and as directed.

S&F in repairs of PVC Float valves of Size 20mm dia with Rod of length not less than 325 mm and 8 mm dia with suitable size Ball along with fittings like reducers,etc for the fixing the valve to tank inlet pipe complete all as specified and as directed.

S&F in repairs of PVC Float valves of Size 25mm dia with Rod of length not less than 325 mm and 8 mm dia with suitable size Ball along with fittings like reducers,etc for the fixing the valve to tank inlet pipe complete all as specified and as directed.

M&L for Construction of valve chamber of size 1200 x 1200 x 1000 mm (internal dimension) suitable for 150/100 mm sluice valve, PCC 1:4:8 type D2 using 40 mm graded stone aggregate as in foundation, brick wall with sub class 'B ' bricks built in CM 1:4, PCC 1:2:4 type B1 using 20 mm graded stone aggregate for coping, plastering in CM 1:4,15 mm thick including provision of MS sheet cover 4 mm thick with two coat of synthetic enamel paint over a coat of red oxide primer to steel surfaces and locking arrangement including excavation earth work in any type of soil, returning in filling and removing the surplus soil all as specified and as directed by Engineer-in-Charge.

S&L in repairs Ductile Iron pipes 100 mm dia with flanged ends class k-9 in any length with internal cement motar lining and external zinc and bitumen coated confirming to IS:8239-2000 including push on rubber gasket joints and laid in trenches as per IS 12288 complete all as specified and as directed. Make: Tata Metaliks/ Jindal/ Electrosteel / Srikalahasthi

S&F in repairs DI bend (any type, any radius and angle) tapers any type (straight bends, increasing or decreasing or double socket etc) Tee pieces single branch, double branch cross (all socket or socket and spigotted/ flanged), collar, caps and plugs all as specified and suitable for tyton rubber joints upto 100 mm dia bore conforming to IS 9523 - 2000 complete all as specified and as directed.

M&L for 2 Nos of MS flanges, welded to 80 mm GI pipe on both sides including one coat of primer and paint each suitable for GI surface , gaskets, washers, nuts, bolts of suitable size after taking down the existing rusted pipe line all as specified and complete all as specified and as directed.

S & F 100mm Gun Metal foot valve with Neoeren seal 'O' ring screwed ends, after taking out old unserviceable foot valve from open well/UG sump conforming to relevant IS-4038 PN 0.2 complete all as specified and as directed.

S &F GI Nipple 100 mm size with suitable grooves to fix footvalve complete all as specified and as directed.

DHANA CONSTRUCTIONS

K VENUGOPALA SWAMY

BEST ENGINEERING

PAVANI INFRAS