8382-PROVN OF WATER SUPPLY PIPE LINE FROM QUARRY WELL TO TRAINING AREA AT OTA UNDER GE STM CHENNAI

Amount

Supply and laying of GI tubing galvanized medium grade of any length including all fittings such as bend, elbow, tee and union in trenches/on floors/ walls/ceilings etc for following sizes:-

(a) 100mm dia

(b) 80mm dia

(c) 50mm dia

Supply and laying of 3- layered PP-R (Poly-Propylene Random copolymer) concealed pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply all PP-R plain & brass threaded polypropylene random fittings laid in trenches for following sizes of outer dia:-

(a) 110mm dia

(b) 90mm dia

(c) 63mm dia

Supply & fixing of cast iron sluice valve IS 14846 -200 PN1.0 both flanged heavy duty drilled and installed with brass spindle gun metal face rings rubber gasket 3mm thick MS bolts nuts and washers graphite rope complete .

(a) 100mm dia

(b) 80mm dia

M&L for gun metal globe or gate valve of brass heavy duty ISI marked with iron wheel head, butterfly handle screwed both ends for iron pipe of 50mm bore fixed on wall and ground complete all as specified and directed

Supply & fixing of Air release valve cast iron with two air outlets, drilling and threading for 25mm bore and fixing up in 100 mm GI pipe mains including rubber gasket, bolt & nut and washers etc conforming to IS 14845 complete all as specified.

Supply & fixing of cast iron double flanged non return butterfly valve of size 100mm as per IS 5312/2004, PN 1.6 and body seat of gun metal of size 100mm including rubber gasket, bolt & nut and washers etc complete all as specified.

M&L for construction of brick masonry valve pits of size 600 x 600 x 600mm (internal dia) with brick work in cement mortar (1:4) including excavation and earth work, concrete work 3mm thick MS sheet cover with locking arrangement hinges and handle rendering work, painting to all steel surfaces with two coats red oxide primer complete all as specified and as directed.

M&L for construction of brick masonry valve pits of size 900 x 900 x 900mm (internal dia) with brick work in cement mortar (1:4) including excavation and earth work, concrete work 3mm thick MS sheet cover with locking arrangement hinges and handle rendering work, painting to all steel surfaces with two coats red oxide primer complete all as specified and as directed.

Cutting the existing bituminous road / cement concrete surface 150mm thick to the required width and depth for laying pipe lines and making good the disturbed area to match with existing complete all as specified.

M&L for plain cement concrete 1:2:4 type B-1 using 20mm graded stone aggregate as in sub base of pump set including necessary form work complete all as specified and as directed.

Supply, installation, testing and commissioning of open well horizontal type submersible pump set capacity 15 HP@ 35 to 55M head range, electrically driven of cast iron construction with impeller capable of self pumping, 380 Volt, 50 Hz, designed as per IS 14220, mechanical seat etc, complete all as specified and directed. Note for item No.11 &12 :- (i) Quoted rate inclusive of MS angle iron base support fabricated made out of any size angle iron for fixing the pump motor and lowering the whole assembly into the quarry well at required depth to accommodate the pump motor in equal level at bottom level of the existing quarry well, along with necessary submersible cable connection from starter from pump room ,testing commissioning all as directed. (ii) Any special T&P/ tripod chain pulley arrangement required for lowering pump set assembly into the well to be arranged by the contractor. Entire work is to be carried out at site with the existing water level in the quarry well.

Supply, installation, testing and commissioning of open well horizontal type submersible pump set capacity 5 HP @ 15 to 35M head range electrically driven of cast iron construction with impeller capable of self pumping, 380 Volt, 50 Hz, designed as per IS 14220, mechanical seat etc, complete all as specified and directed.

Supply and fixing of Auto star delta starter with three phase, 415 volts, with and including prevention facility suitable for 15HP pump set complete.

Supply and fixing of DOL starter with three phase, 415 volts, with and including prevention facility suitable for 5HP pump set complete.

Flat PVC Insulated and PVC sheathed industrial submersible water proof cable for submersible pump motors 1100 volts grade, 3 core, cross sectional area 6 sqmm connected with necessary ferrules / water proof joint complete all as specified and as directed.

Galvanised steel water tubing, 100mm bore of pipe, heavy duty, laid in floors / ceiling / lowering into the well, column pipe of flanged type, ISI marked, including nuts and bolts with washers, gaskets in lengths as per site to connect from submersible pump top / ground level of well complete.

Supply and laying of unplasticiscd PVC pipes of pressure rating 10 kgf/cm2 laid in trenches of following sizes:-

(a) 50 mm bore of pipe

(b) 40 mm bore of pipe

Supply and laying of PP-R Gate valves (brass insert) as per requirement of the site of following sizes:-

(a) 50 mm bore of pipe

(b) 40 mm bore of pipe

Excavating in trenches, n exc 1.5m wide and n exc 1.5m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n.exc 10 sqm on plan and n exc 1.5 m in depth and getting out.

Removing excavated material n.exc. 50m and depositing where directed at a level n exc.1.5m above the starting point.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm. Note for item no 19 to 21:- Contractor should take care of existing grass surfaces in the lawns while carrying out excavation/refilling works before and after laying of pipe lines for sprinklers at places as per site condition.

Supply & fixing, testing, commisioning of water sprinkler pop up type, adjustable 40 to 360 degree rotational type, capacity 25 to 50 feet water spray distance connected with PVC pipe and connector/ accessories.

Supply & fixing of T - Type SCREEN Filter for Drip Irrigation, use for garden /Lawn, Size of inlet /out let 2.5 inch (65mm), delivery water flow rate 40,000 Litre/Hr, tap Mount Water Filter for water sprinkler pipe lines.

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