REPAIR OF EXTERNAL WATER SUPPLY, PIPELINE, PUMP SET AND CLEANING OF BOREWELL, WELL ETC AT AVADI UNDER AGE (I) NAVY CHENNAI.

Amount

Taking up or down 20mm bore steel water tubing,medium grade, galvanized including all fittings and connections for taking into credit or refixing after cleaning , complete all as specified and as directed

All as per item no 1 here in before but of size 25mm dia

All as per item no 1 here in before but of size 40mm dia

All as per item no 1 here in before but of size 50mm dia

All as per item no 1 here in before but of size 80mm dia

Supply and laying in repair trenches steel water tubing,20 mm medium grade, galvanized including all fittings complete all as specified and as directed.

All as per item no 6 here in before but of size 25mm dia

All as per item no 6 here in before but of size 40mm dia

All as per item no 6 here in before but of size 50mm dia

All as per item no 6 here in before but of size 80mm dia

S&F in repair steel water tubing,20 mm medium grade, galvanized including all fittings, on walls, ceilings or laid in floors, and taking up or down existing tubing with all connections for taking into credit, complete all as specified and as directed.

All as per item no 11 here in before but of size 25 mm dia

All as per item no 11 here in before but of size 40 mm dia

S&F, in repair gun metal gate valve, 20 mm dia with iron wheel head confirming to IS 778 class I, screwed both end for iron pipe and removing unserviceable gate valve, complete all as specified and directed.

All as per item no 14 here in before but of size 25mm dia

All as per item no 14 here in before but of size 40mm dia

All as per item no 14 here in before but of size 50mm dia

Taking out the old unservicable sluice valve and S&F CI Sluice Valve Class PN 1.6 80 mm dia conforming to IS 780 with flanged and drilled ends and of any pattern including necessary jointing and jointing materials complete (with rubber gasket, bolts and nuts etc., ) all as specified an as directed.

Removing unserviceable foot valve/ check valve of 40mm dia from the suction pipe of the pump set, S&F New check valve, heavy duty of gun metal, both ends threaded and end leaf spring loaded vertical type, complete all as specified and directed.

All as per item no 19 here in before but of size 50mm dia

M&L for preparation of old painted surfaces of LT panels and spray painting with two coats of synthetic enamel paint complete all as specified and directed.

Cutting the existing bituminous road / cement concrete surface, 150 mm 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 and directed.

M&L for PCC (1:4:8), type D-2, using 40mm graded stone aggregate as in foundation, filling and mass concrete including necessary form work complete all as specified and as directed

Replacement of cast iron double flanged non return valve of size 80 mm as per IS 5312/2004, PN 1.0 and body seat of gun metal of size 100 mm including rubber gasket, bolt & nut andw ashers etc... complete Including dismantling old non return valve for taking into credit complete all as specified and directed.

Description all as per Sl item No. 24 here-in-before but of size 50 mm dia bore

S&F in repairs, ball brass valves of 50 mm dia, high pressure with polythene float and flynut complete screwed for iron pipe including socket of suitable size complete all as specified and directed.

Description all as per Sl item No. 26 here-in-before but of size 40 mm dia.

Description all as per Sl item No. 26 here-in-before but of size 25 mm dia.

Description all as per Sl item No. 26 here-in-before but of size 20 mm dia.

S&F heavy duty GI Socket of size 50 mm for delivery pipe of motor and taking down unserviceable socket all as specified and directed.

Cutting the existing GI tubing 40/50 mm dia for alteration or additions and screwing existing steel tubing or lengthening screw on pipe to form connector in trenches, floors or on walls and ceiling and rejoining including connecting up with GI union complete all as specified and directed. Note: Each cut shall be measured seperately

Description all as per Sl item No. 31 here-in-before but of size 25/32 mm dia.

Description all as per Sl item No. 31 here-in-before but of size 20 mm dia.

M&L for preparation of old painted steel or iron surfaces and applying two coats of synthetic enamel paint over a coat of red oxide primer etc complete all as specified and as directed. Note: Painting to each pump shall be considered as a seperate job

M&L for preparation of old painted steel surfcaes by scraping / cleaning with wire brushed to remove the old painting from pumps & motors installed at all pump house and applying two coats of synthetic enamel paint with spray over a coat of red oxide primer and writing SM/MES No. with white paint complete all as specified and as directed. Note: Painting to each pump shall be considered as a seperate job

S&F Pressure gauge 5'' dia, 0 to 14 Kg/cm2 range, fixing on delivery pipe of pump set and removing existing defective pressure gauge and taking into credit complete all as specified and as directed Make: H Guru/Pie Big

S&F Gland rope (graphite rope) (size 1/2'' , 1/4'' , 3/4'') including taking out old unserviceable one complete all as specified and directed.

S&F Mild steel screw bolts (machine made) with hexagonal or square heads at one end and each screwed end to be fitted with washer and one hexagonal or square nut exceeding 15 cms and not exceeding 22.5 cms long, dia 11 to 15 mm dia of neck, complete all as specified and directed.

M&L for Plain cement concrete (1:2:4) type B1 (using 20mm graded stone agregate) as in sub base of pump set including necessary form work compllete all as specified and as directed.

M&L for Sub main wiring with four runs single core 6 sqmm multi stranded copper conductor, PVC insulated, unsheated cable 1100 volts garde and one run of 6 sqmm multi stranded copper conductor cable as earth continuIty conductor, drawn into and including non-metallic rigid PVC conduit 32 mm dia including conduit accessories, including taking down existing complete all as specified and directed . Note: five runs of 6 Sqmm cable and one run of 32 mm conduit / casing capping will be measured as one unit length

Supply and connecting flat three core, PVC insulated industrial cable for submersible motor, 4 sqmm (Nominal area) with multi stranded copper conductor, 1100 volts grade connected from starter to submersible pump motor, including taking down existing, complete all as specified and directed.

M&L for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below GL) with top edge of earth plate not less than 1.5 Mtr below normal ground level, earth plate surrounded from all sides by 15cm thick and packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using galvanized iron strip 32 x 6 mm as earthing lead connected by means of bolts, nuts, check nuts and washer of galvanized iron or steel, provision of 40 mm dia GI pipe light grade for protection of GI strip upto 7.5 meter long and 20mm dia GI pipe medium grade for watering arrangement and PCC (1:3:6) , type C1 chamber, GI funnel, wire gauge, 50 mm thick RCC 1:2:4, type B1 earth pit cover with 6 Nos, 8 mm dia high strength deformed steel TMT bars on both ways including necessary excavation in any type of soil, returning, filling in, removal of surplus soil to distance not exceeding 50 metre, provision of charcoal and salt, lifting handle, GI funnel, wiremesh, lugs etc.. as shown in electrical plate No 3 of SSR Part-I (2009) complete all as specified and directed.

Taking down defective mono block / centrifugal pump set / jet pumpset from foundation by opening of coupling and foundation bolts and transporting to workshop for repairing and re-assembling after servicing and overhauling complete with oiling/greasing, lubricating the parts including repair /replacement of worn out parts and spary painting with one coat of existing colour paint and writing SM/MES No with white paint and installation, commissioning and testing on full load complete all as specified and directed for electric driven pump set of 5.0 HP/7.5 HP capacity Note: The rate quoted for this item shall be deemed to include for labour and replacement of defective / Unserviceable spares / accessories, nut, bolts, washers, gasket, paints etc... required for effective functioning of the pump.

Description all as per SI item No. 43 here-in-before but pump set of capacity 10/12.5 HP, 3 Ph, 440 Volts.

Rewinding of motor stator coil for pump set of capacity 5.0 HP, complete as per IS-393 of 1953 using super enameled copper wire of Adequate guage and weight including replacement of all insulation material and terminal lead for power supply and other petty items required for making motor functional complete all as specified and directed.

Description all as per SI item No. 45 here-in-before but pump set of capacity 10/12.5HP, 3 Ph, 440 Volts.

Taking down defective submersible pumpset of capacity 5.0 HP, 3 Ph, 440 volts including taking up the pump set from bore well or open well after disconnecting the electrical and pipeline connection, complete without any damage to the pumpset or the pipes and transporting to workshop including repair/replacement of worn out parts, servicing and overhauling complete with oiling/greasing, lubricating the parts and re-assembling and painting of submersible pumpset with motor with one coat of synthetic enamel paint after clearing and scrubing and shifting back to borewell, lowering commissioning and testing on full load complete all as specified and directed. Note: (i) The rate quoted for this item shall be deemed to include for labour and replacement of defective / Unservicable spares / accessories, nut, bolts, washers, gasket, paints etc... required for effective functioning of the pump. (ii) In case of any damage to the pipes during the time of removal or refixing of the pump sets, contractor shall be responsible for repairing the same without any extra cost to the Government.

Rewinding of motor stator coil of pump set of capacity 5 HP complete as per IS-393 of 1953 using super enameled copper wire of Adequate guage and weight including replacement of all insulation material and terminal lead for power supply and other petty items required for making motor functional complete all as specified and directed.

Cleaning of under Ground Sump of capacity 15000 gallons, all internal sides of sump/well shall be properly cleaned, internal walls of water tank bottom, side walls, internal opening, partition walls, bottom of top slab, haunch surfaces etc... shall be cleaned with pressure jet. Cleaning operation shall involve the following:- 1. Dewatering of water tanks upto 100-150 mm water table in tanks, contractor shall bring own arrangement for dewatering pump, suitable piping till nearest drain etc... as directed by Engineer-in-charge. 2. Cleaning and removal of algae from bottom, side walls, partitions, internal opening etc... with scrapping down/brushing and high pressure jet machine of pressure 75-100 bars without damaging tank surface and waterproofing etc... 3. Dewatering of water containing wall wash sludge / algae etc.. by dewatering pump with suitable piping till nearest drain etc. as directed by Engineer-In-Charge.

4. Internal walls, partitions,cover slab bottom etc... shall be cleaned preoperly to the satisfaction of the Engineer-in-charge.. 5. Final cleaning of Tank with water. 6. The remaining sludge should then to be removed by sludge pumps, the dirt silt and other sludges shall be removed outside the defence premises and the rates are deeemed to include for the same.

NOTE: All the operations should be executed by trained workers and techicians, properly dressed along with gum boots, safety harness to work as per the directions of Engineer in Charge. Contractor shall bring suitable fitting to connect cleanout pipe and suitable length pipe using cleanout facility if available and shall operate the same without damaging water tank. Nothing extra shall be paid separately. Contractor shall be responsible for complete cleaning, suction,disposal activity etc.... Any damage to water tank during cleaning operation shall be repaired by the contractor with no additional cost to the department. Contractor shall ensure and implement safe working conditions for his labours during execution, all necessary safety measure and harness shall be used before taking-up-work. suitable lighting and Ventilation should be provided by the contractor before cleaning of covered tanks. The contractor shall be solely responsible for the lapses in the safety during the work and allied compensations. Nothing extra shall be paid separately.

Description all as per Sl item No 49 here-in-before but 20000 Gallons capacity

Supply and replacement of DOL Starter 3 phase, 440 Volts with relay range up to 10 HP, including taking down old unservicable one, complete all as specified and directed.

Developing / flushing of bore wells for a period of 6 hours using compressed air method upto availability of crystal clear water including removing and fixing the installation in original location complete all as specified and directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in soft / loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm obtained from excavation complete all as specified and as directed.

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

EVEREST ENGINEERING WORKS