REPAIR/ MAINTENANACE OF EXTERNAL WATER SUPPLY AND CLEANING OF SERVICE TANKS UNDER GE BRICHGUNJ, PORTBLAIR.

Amount

Material and labour for Cutting Road as required for Jointing / Laying / taking down GI / CI / DI Pipeline of maximum 6 m length and making good disturbed as per site surface with 20/40mm graded stone aggregate and bitumen after repair work complete all as specified and as directed.

Material and labour Caulking of lead joints, with lead wool at places of leakages from the pipe and arresting leakages for 300/250/200/150/100/80mm bore of pipe, complete all as specified and as directed

Material and labour for detecting leakage in Cast Iron/Ductile iron Pressure Pipes of 400/300/250/200/150/100/80mm bore of pipe in any location, any depth including necessary earthwork excavation and repairing and arresting leakage by providing Jointing Material, Flanged Clamps, Nuts, Washers & Bolts etc. complete all as specified and as directed. Note: fittings like Tee,tappers bend ,pipe etc and lead joint shall be measured under relevant item

Material and labour for Detecting leakage in GI Water Supply Lines of 100/80 mm bore in any location, any depth including necessary earthwork excavation and repairing and arresting leakage by providing Jointing Material, Flanged Clamps, Nuts, M seal, colour Washers & Bolts etc. complete all as specified and as directed.

All as per item No.4 above but size 50/40 mm bore

All as per item No.4 above but size 25/20/15 mm bore

M &L taking out Sluice Valve of 80mm bore, repairing and refixing the same after Re-facing, Grinding the Valve Check Nut, Spindle etc. including jointing materials complete all as specified and directed. Note : rate deemed to be inclusive any welding works /replacement of spindle , valve check nut required at site to make valve serviceable

All as per Item No. 7 here-in-before, but 100mm bore

All as per Item No.7 here-in-before, but 150mm bore

All as per Item No.7 here-in-before, but 200mm bore

All as per Item No.7 here-in-before, but 250mm bore

All as per Item No.7 here-in-before, but 300mm bore

All as per Item No.7 here-in-before, but 400mm bore

All as per Item No.7 here-in-before, but 500mm bore

Material and labour for repairs to Air Release Valve, of 80mm bore of pipe and refixing the same after replacing the unserviceable HDPE Float, Nuts, Bolts and jointing materials complete all as specified and directed.

All as per Item No.15 here-in-before, but 100mm bore

All as per Item No.15 here-in-before, but 150mm bore

S & F as in repairs Sluice Valve, Cast Iron body, Stainless Steel Spindle, Gun Metal Rings including Wheel for operation, Flanged and Drilled, 80 mm bore of pipe, confirming to IS - 14846, Class PN -1.6, Long Body type including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer complete all as specified and as directed.

All as per Item No.18 here-in-before, but 100mm bore

All as per Item No.18 here-in-before, but 150mm bore

All as per Item No.18 here-in-before, but 200mm bore

All as per Item No.18 here-in-before, but 250mm bore

S & F as in repairs Air Release Valve, 80 mm bore of pipe conforming to IS - 14845, with 2 Air Out lets of 25 mm bore with suitable Flanges, GI Pipes of Medium Grade 25 mm bore, MS Clamps, including all Joints with Rubber Gasket and Jointing Materials, Bolts, Nuts, Washer complete all as specified and as directed.

Material and labour for Rubber Gasket / Tyton Joint confirming to IS specifications for CI / DI Pressure pipes of 80 mm bore, Socket and Spigot or Specials suitable for 80 mm bore pipe complete all as specified and as directed.

All as per Item No.24 here-in-before, but 100mm bore

All as per Item No.24 here-in-before, but 150mm bore

All as per Item No.24 here-in-before, but 200mm bore

All as per Item No.24 here-in-before, but 250mm bore

Material and labour for Run Lead joint confirming to IS specifications for cast iron pressure pipes of 80 mm bore, Socket and Spigot or Specials suitable for 80 mm bore pipe complete all as specified and as directed.

All as per Item No.29 here-in-before, but 100mm bore

All as per Item No.29 here-in-before, but 150mm bore

All as per Item No.29 here-in-before, but 200mm bore

All as per Item No.29 here-in-before, but 250mm bore

All as per Item No.29 here-in-before, but 300mm bore

All as per Item No.29 here-in-before, but 400mm bore

All as per Item No.29 here-in-before, but 500mm bore

Material and labour for repair dismantling and taking up CI Foot Valve, 200mm bore from Suction Gallery , opening, cleaning with wire brush, removing deposited scales / foreign materials, rubbing with emery paper and replacing unserviceable Gasket, Bolts, Nuts, Washers and Worn-out Parts etc. and refixing in original position complete all as specified and as directed.

Material and labour for repair dismantling and taking up CI Foot Valve, 150mm bore from Suction Gallery , opening, cleaning with wire brush, removing deposited scales / foreign materials, rubbing with emery paper and replacing unserviceable Gasket, Bolts, Nuts, Washers and Worn-out Parts etc. and refixing in original position complete all as specified and as directed.

All as per Item No.38 here-in-before, but of size 100mm bore.

All as per Item No. 38 here-in-before, but of size 80mm bore.

Supply and fix in repairs non-return valve with flanged ends of any pattern with bypass arrangement and ISI marked including jointing materials and necessary joints and nut bolts with washer for flanged ends of size 200 mm complete all as specified and as directed.

Supply and fix in repairs non-return valve with flanged ends of any pattern with bypass arrangement and ISI marked including jointing materials and necessary joints and nut bolts with washer for flanged ends of size 150 mm dia complete all as specified and as directed

Supply and fix in repairs non-return valve with flanged ends of any pattern with bypass arrangement and ISI marked including jointing materials and necessary joints and nut bolts with washer for flanged ends of size 100/110 mm dia complete all as specified and as directed

Supply and fix in repairs non-return valve with flanged ends of any pattern with bypass arrangement and ISI marked including jointing materials and necessary joints and nut bolts with washer for flanged ends of size 80 mm dia complete all as specified and as directed

Material and labour for repairs to 400mm bore non- return valves by opening valve, cleaning the gates with wire brush, removing deposited scales/ foreign materials, rubbing the seat with emery paper and replacing unserviceable gasket and worn out parts etc, and refixing back to original position, complete all as specified and as directed

All as per Item No.45 here-in-before, but of size 250mm bore.

All as per Item No.45 here-in-before, but of size 200mm bore

All as per Item No.45 here-in-before, but of size 100mm bore.

All as per Item No.45 here-in-before, but of size 80mm bore.

Material and labour for Construction of Valve Chamber of size 600 X 600 X 600 mm internal size suitable for Sluice Valve, with PCC (1:4:8), Type D2, using 40mm graded stone aggregate for foundation, 200 mm thick Precast Cement Concrete Solid Block Masonry of (1:3:6) Type C1 using 20mm graded stone aggregate in Cement Mortar (1:6) 40 mm thick PCC, (1:2:4) Type B1, using 20mm graded stone aggregate Coping, rendering in CM 1:4, 15 mm thick including provision of Mild Steel Sheet Cover 3 mm thick with 40 X 40 X 6 mm size Angle Iron frame work embedded in concrete with suitable hinges and locking arrangements including two coat of synthetic enamel black paint over a coat of red oxide zinc chrome primer to steel surfaces and including necessary earth work excavation in any type of soil etc., removal of surplus soil and rubbish not exceeding 50m distance and including demolition of old Valve Chambers of any description complete all as specified and as directed.

All as per Serial Item No 50 here-in-before, but Valve Chamber of size 900 X 900 X 900 mm.

Supplying, fixing and testing of Cast Iron, heavy duty, Specials of any size, radius and length confirming to IS - 1538 Part - I to XXIII: 1976 such as bends [any type, radius and angle], tapers any type [straight, bend, increasing, decreasing or double socket etc], sockets, tail pieces, connecting pieces, tee pieces, single branch, "Y" junction, double branch, cross, [all sockets or socket and spigot or Flanged], collars, caps and plugs, ( required for shape as per site )adopters etc suitable for CI / DI Spigot and Socket or Flanged pressure pipes complete all as specified and as directed.

Material and labour for preparing old painted or untreated exposed surfaces of CI / DI Pipes of size 400 / 300 / 200/150/100/80mm bore, Valve Chamber Covers and applying One coat of black coloured weather proof synthetic enamel paint over a coat of red oxide zinc chrome primer complete all as specified and as directed.

Demolition of Cement Concrete of any description and in any position not otherwise specifically provided for and removing rubbish to a distance not exceeding 1.50 km complete all as specified and as directed.

Material and labour for PCC (1:2:4) Type B-2, using 40 mm graded stone aggregate as in foundation, filling mass concrete, for supporting / encasing of CI / DI / GI Pipes of any description, Pilasters, Columns, Pillars, Buttresses, Boundary Pillars and Posts including necessary form work etc complete all as specified and directed.

Material and labour for PCC (1:2:4) Type B-1, using 20 mm graded stone aggregate as in Coping and the like including weathering, slightly rounded or chamfered angles and throating including formwork [straight or curved] complete all as specified and directed.

Supply and fix in repairs of 15mm bore ISI marked, GI tubing medium grade, galvanised with all fittings and fixed to walls and ceilings or laid in floor etc complete all as specified and as directed

Supply and fix in repairs of 20mm bore ISI marked, GI tubing medium grade, galvanised with all fittings and fixed to walls and ceilings or laid in floor /trenches etc complete all as specified and as directed

Supply and fix in repairs of 25mm bore ISI marked, GI tubing medium grade, galvanised with all fittings and fixed to walls and ceilings or laid in floor / trenches etc complete all as specified and as directed

Supply and fix in repairs of 40mm bore ISI marked, GI tubing medium grade, galvanised with all fittings and fixed to walls and ceilings or laid in floor / trenches etc complete all as specified and as directed

Supply and fix in repairs of 50mm bore ISI marked, GI tubing medium grade, galvanised with all fittings and walls and ceilings or laid in floor / trenches etc complete all as specified and as directed

Supply and fix in repairs of 80mm bore ISI marked, GI tubing medium grade, galvanised with and walls and ceilings or laid in floor / trenches etc complete all as specified and as directed

Supply and fix in repairs of 100mm bore ISI marked, GI tubing medium grade, galvanised with and walls and ceilings or laid in floor / trenches etc complete all as specified and as directed

S & F in repairs, 15 mm bore Gun Metal Globe or Gate Valve of Class - I Pressure Tested of 1.5 MPa with iron wheel head, screwed both ends for iron pipe, ISI Marked complete all specified and as directed.

All as per Item No.64 here-in-before, but 20mm bore

All as per Item No.64 here-in-before, but 25mm bore

All as per Item No.64 here-in-before, but 40mm bore

All as per Item No.64 here-in-before, but 50mm bore

All as per Item No.64 here-in-before, but 80mm bore

S & F in repairs Ball Valves, high pressure of PTMT with epoxy coated Aluminium rod & high-density plastic ball screwed for iron pipe etc. of size 20mm bore dia of pipe [Minimum Weight for 20mm - 210 Grams] complete all as specified and as directed

All as per Serial Item No. 70 above but 25mm bore dia of pipe (minimum weight for 25mm-455gms)

All as per Serial Item No. 70 above but 40mm bore dia of pipe (minimum weight for 40mm-690gms)

Material and labour for Cleaning of Valve Chamber of size 600 X 600 X 600 mm by removing debris, foreign materials, brushing down the walls with wire brush, applying one coat of white wash on inner wall and exposed surfaces of walls and applying one coat of black bituminous paint on MS cover and frame [both inner & outer surfaces] including preparation of surfaces etc. complete all as specified and as directed.

All as per Item No.73 here-in-before, but valve chamber of size 900X900X900mm

All as per Item No.73 here-in-before, but valve chamber of size 1200X1200X 1000 mm

Supply and fix in repairs of 80mm bore GI union medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 50mm bore GI union medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 40mm bore GI union medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 25mm bore GI union medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 20mm bore GI union medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 80mm bore GI socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 50mm bore GI socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 40mm bore GI socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of 25mm bore GI socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs of20mm bore GI socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 4 Inch size 80mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 4 Inch size 50mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 4 Inch size 40mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 4 Inch size 25mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 4 Inch size 20mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 8 Inch 50mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 8 Inch 40mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 8 Inch 25mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 8 Inch 20mm bore GI Nipple medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 80mm bore GI elbow medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 50mm bore GI elbow medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 40mm bore GI elbow medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 25mm bore GI elbow medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 20mm bore GI elbow medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 50x40mm bore GI reducer socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 40x25mm bore GI reducer socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 25x20mm bore GI reducer socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 40x20mm bore GI reducer socket medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 50x40mm bore GI elbow reducer medium grade ISI marked complete all as specified and as directed..

Supply and fix in repairs 40x25mm bore GI elbow reducer medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 25x20mm bore GI elbow reducer medium grade ISI marked complete all as specified and as directed.

Supply and fix in repairs 40x20mm bore GI elbow reducer medium grade ISI marked complete all as specified and as directed.

Supply & fixing Braided PVC suction hose 40mm bore and taking down old item complete all as specified and as directed.

Supply and fix in repairs gland paking with Graphite Gland Rope of size 6mm complete all as specified and as directed.

Supply and fix in repairs gland paking with Graphite Gland Rope of size 8mm complete all as specified and as directed.

Supply and fix in repairs gland paking with Graphite Gland Rope of size 10mm complete all as specified and as directed.

Supply and fix in repairs MS pipe of medium size 150 mm dia complete all as specified and as directed.

Supply and fix in repairs MS pipe of medium size 200 mm dia complete all as specified and as directed.

Supply and fixing of LED fountain under water lights(colour)of capacity 12W suitable for working along driver 220v to 12v converter complete all as specified and as directed.

Material and labour for draining out complete water from existing PVC water tank fixed on the roof top of the buildings, removing the mud, sludge etc; from the tank, cleaning the internal surface using bleaching powder and wire brush, keeping it dry, painting the external surfaces of the tank facing the road side with black/white background of size 450mm x 300mm with one coat of approved black/white synthetic enamel paint, writing on the white/black surface with white/black paint " TANK CLEANED ON (date)" size of letter shall be 50mm x 70mm, checking and correcting the air lock on occurrence next day after the cleaning of the tank, when the tank is full of water, removing the same with pump, repair the leakage if any and cleaning the vegetation etc; on surrounding RCC slab where the tank is resting, (a) to (e) will period of nine months interval complete all as specified and directed for the following capacity: - Note for Item No 3(a) to (e) -Contractor should take all saftey precautions while executing the job. In case of any accident during the work in progress the contractor will be fully responsible to give necessary medical aids and also compensation to worker under compensation act 1923.

(a) Service tank of capacity 500 Ltrs

(b) Service tank of capacity 750 Ltrs

(c) Service tank of capacity 1000 Ltrs

(d) Service tank of capacity 2000 Ltrs

(e) Service tank of capacity 3000 Ltrs

(f) Service tank of capacity 5000 Ltrs

(g) Service tank of capacity 10000 Ltrs

Taking up old unserviceable water storage tank and S&F rotational moulded polyethylene water storage tank double layer, ISI marked, (Cylindrical vertical with closed top) with GI medium grade pipe for inlet, outlet, over flow, checknuts for inlet and outlet, hoisted and fixed in position including 25/40 mm PTMT Ball vlave all as specified and directed for the following sizes:-

(a) 500 Ltrs

(b) 1000 Ltrs

(c) 2000 Ltrs

M&L for taking out unserviceable sintex top cover and S & F new sintex top cover complete with hinges for secure and all as specified and directed for the following sizes:-

(a) Upto 300 Ltrs

(b) 500 Ltrs and upto 2000 Ltrs

(c) 5000 Ltrs and upto 10000 Ltrs

M&L for Flushing of existing wells of size 150mm dia, depth upto120 mtr with drilling compressor including surging and flushing the at a pressure of 7 kg/ sqcm complete with compressed air and flushing the sand, mud etc from the well all as directed.

Disconnecting of delivery water pipe line of wells having various depths upto 120 mtr by removing electric connections carefully from the existing submersible pump sets taking out the defective pump set from the well alongwith GI column pipes size of 50mm dia, submersible cable, and strip opening the pump set for repairs, transporting to the civil workshop, replacement of worn out spares ,re- fixing of serviceable spares assembling the pump set completely , testing of pump set lowering the pump set inside the well after repairs, including connecting back the water mains and electric connections commissioning of pumpset for satisfactory operation on its full load complete all as specified and as Directed Note : a) The spares (supply only) required for repairing the pump sets and rewinding of motor will be measured and paid seperetely under respective item. b) Expendable stores like cotton waste/cleaning materials lubricants , gland packing metal filling , machining and transportation from site to work shop are deemed to be included in rate quoted.

M&L for rewinding the well submersible/Non clog Submersible motor with insulated copper conductor winding wire of same guage as existing weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete all as specified and as directed for the following items:-

(a)5 HP Submersible Motor

(a)7.5 HP Submersible Motor

CHANDER SEKER ENTERPRISE

SKV Engineering