REPAIR/MAINTENANCE OF EXTERNAL WATER SUPPLY NETWORK OF VARIOUS LOCATION AT AFS CHABUA UNDER GE (AF) CHABUA

Amount

Excavation in trenches not exc 1.5 m in depth and not exc 1.5 m wide for taking out/laying CI/GI pipes and getting out in soft/loose soil complete all specified and as directed.

Returning filling in including spreading, levelling, watering and well ramming in layer not exc 25 cm in soft/loose soil, complete all as specified and as directed.

Removing excavated materials to a distance not exceeding 50 m and depositing at a level not exceeding 1.5 m from starting point, complete all as specified and as directed.

Taking up old unserviceable 100 to 150 mm bore GI Pipe from trenches/floors with necessary fittings and valves etc complete all as specified and all as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 80mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 50mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 40 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 25 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 20 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 4 (here-in-before) but 15 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

Supply, laying, and testing galvanised iron pipes of 100 mm bore medium grade with ISI Marked with all necessary fittings ( such as bends, elbows, tees, short pieces of medium grade pipe, connectors, back-nuts, caps, plugs and unions etc.) laying in trenches/ floors/ ducts and also cutting pipes, screwing, and for making forged bends on piping as required, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 here-in-before above but 80 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 (here-in-before) but 50 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 (here-in-before) but 40 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 (here-in-before) above but 25 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 (here-in-before) but 20 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

All as per item No 11 (here-in-before) but 15 mm bore GI Pipe, complete all as specified and as directed by Engr-in-Charge.

Supply and Fix, 3 (Three) layered, PP-R (Polypropylene Random Co-Polymer) pipes, 160 mm OD, SDR 7.4 (PN 11), UV stabilized , inner anti microbial, fusion welded, having thermal stability for hot & cold water supply including all PP-R plain fittings and brass threaded fittings, laid in trenches etc complete all as specified and directed. NOTE :- The quoted rates shall be deemed to include the following factors :- 1) Clamping for PP-R pipe on wall, the distance between two clamps not more than 0.5 mtr and clamp must be for PP-R pipe only (not iron clamp) fixed to walls/ceiling by drilling holes and inserting PVC raw plugs and tightening with SS screws not less than 1½" long as per manufacturer's instructions. 2) Flanges in pipe lines shall be provided at an interval of not exceeding 30 mtr in continuous lengths. 3) Where required "Tee & bend/elbow", insert flanges in both/all sides of "Tee & bend/elbow" shall be provided

All as per item No.18 (here-in-before) but of size 110 mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No-18 (here-in-before) but of size 92 mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No-18 (here-in-before) but of size 63 mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No - 18 (here-in-before) but of size 50 mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No - 18 (here-in-before) but of size 40 mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No - 18 (here-in-before) but of size 32 mm bore, complete all as specified and as directed by Engr-in-Charge.

Supply laying in trenches ductile iron (DI) pressure pipe with spigot and socket ends, centrifugally cast , class K-9, confirming to IS : 8329-2000 with internal metallic zinc coating and external black bitumen coating suitable for push on joint (tyton) in any length of 100 mm bore complete all as specified and directed . Note: the unit rate (s) includes for all jointing & jointing material)

Relaying of 100 to 150 mm bore GI pipe in trenches after cleaning internal surface of serviceable pipes by using of wire brush and cleaning thoroughly with fresh water and taking out mud/iron deposited inside the pipes, complete all as specified and as directed by Engr-In-Charge. Note: GI pipe obtained from above relevant items.

Relaying of 50 to 80mm bore GI pipe in trenches after cleaning internal surface of serviceable pipes by using of wire brush and cleaning thoroughly with fresh water and taking out mud/iron deposited inside the pipes, complete all as specified and as directed by Engr-In-Charge. Note: GI pipe obtained from above relevant items.

Material and labour for UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply 160mm bore PPR pipe, complete all as specified and as directed by Engr-in-charge.

Material and labour for UV stablised and antimicrobial fusion welded having thermal stability for hot & cold water supply 110mm bore PPR pipe, complete all as specified and as directed by Engr-in-charge.

Material and labour for PPR coupler 160 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for PPR flange socket 160 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for 'O' ring for PPR 160 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for MS flange 160 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for rubber gasket suitable for 160 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for PPR coupler 110/90 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for PPR flange socket 110/90 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for 'O' ring for PPR 110/90 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for MS flange 110/90 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for rubber gasket suitable for 110/90 mm bore pipe for pipe line likage complete all as specified and as directed by Engr-in-charge.

Material and labour for Elbow 50 mm bore pipe line complete all as specified and as directed by Engr-in-charge.

Material and labour for Cross Tee 50 mm complete all as specified and as directed by Engr-in-charge.

Material and labour for Plastic Union 50 mm complete all as specified and as directed by Engr-in-charge.

Material and labour for Gate Valve 50 mm complete all as specified and as directed by Engr-in-charge.

All as per item No 43 (here-in-before) but 80mm bore CI Pipe, complete all as specified and as directed by Engr-in-Charge.

Taking out sluice valve/Butterfly valve/Diaphragm valve/non return valve/venturi/foot valve of any size.

Supply and fixing, cast iron butterfly valve (water type) with double flange, gear operated of size 100mm bore heavy duty conforming to IS:13095 including jointing and jointing materials, nuts bolts, rubber gasket and washers, complete all as specified and as directed by Engr-in-charge.

Supply and fixing, cast iron butterfly valve (water type) with double flange, gear operated of size 80mm bore heavy duty conforming to IS:13095 including jointing and jointing materials, nuts bolts, rubber gasket and washers, complete all as specified and as directed by Engr-in-charge.

Supply and fixing, Cast iron sluice valve of size 150mm bore, heavy duty (PN-1.6) with flanged ends, brass spindle any pattern with iron wheel head confirming to IS:14846, including jointing and jointing materials, nuts, bolts, rubber gasket and washers, complete all as specified and as directed by Engr-in-Charge.

All as per item No. 48 (here-in-before) but of size 100mm bore, complete all as specified and as directed by Engr-in-Charge.

All as per item No. 48 (here-in-before) but of size 80mm bore, complete all as specified and as directed by Engr-in-Charge.

Material and labour for cast iron non return (Reflux) valve of size 100 mm bore (PN-1.6) with flanged ends Non Return with GM working parts IS - 5312 heavy duty, drilled for bolts, including necessary rubber gasket joint complete with nuts and bolts, complete all as specified and as directed by Engr-in-Charge.

Material and labour for foot valve with GM working valve of size 80mm bore IS - 4038 heavy duty, drilled for bolts, including necessary rubber gasket joint complete with nuts and bolts, complete all as specified and as directed by Engr-in-Charge.

Supply and fixing 50mm bore dia Gun-metal, gate valves, with iron wheel head, screwed both ends on G.I pipes with GI union, including taking down old unserviceable ones, complete all as specified and all as directed.

All as per item no-53 (here-in-before) but bore dia 40 mm complete all as specified and as directed by engineer in charge.

All as per item no-53 (here-in-before) but bore dia 25 mm complete all as specified and as directed by engineer in charge.

All as per item no-53 (here-in-before) but bore dia 20 mm complete all as specified and as directed by engineer in charge.

All as per item no-53 (here-in-before) but bore dia 40mm PP-R Gate valve complete all as specified and as directed by engineer in charge.

All as per item no-53 (here-in-before) but bore dia 25mm PP-R Gate valve complete all as specified and as directed by engineer in charge.

Supply and fixing 20mm size Brass Float Valve with PVC Ball & Brass Rod as per requirement of the site. including taking down old unserviceable ones, complete all as specified and all as directed.

Construction of brick masonry valve pit / chamber of internal dimension 90 cm x 90 cm x 90 cm depth with sub class 'B' old size bricks in CM (1:4) and 10 mm thick plastering in CM (1:4), PCC (1:4:8) type D2 (Using 40 mm graded broken stone aggregate) as in foundation lean concrete, PCC (1:3:6) type CI (using 20 mm graded broken stone aggregate) as in bedding and copping MS frame with 40 x 40 x 6 mm angle iron 3 mm thick MS sheet cover plate with locking arrangements, hinges and two coats of synthetic enamel paint over one coat of red oxide primer including preparation of surface, three coats of white wash on plastered surface (exposed to view) including necessary breaking of the existing old chamber, excavation in soft loose, soil, returning filling in and removal of surplus soil to a distance not exceeding 50 m, complete all as specified and as directed by Engr-in-Charge.

All as per item No. 60 (here-in-before) but valve pit chamber of internal dimension size 60 x 60 x 60 cm, complete all as specified and as directed by Engr-in-Charge..

Material and labour for DI/CI bends, Tees, collar, Tail piece etc (any type & shape and angle) tapers any type (straight, bend, increasing, decreasing or double socket etc) Tee pieces single branch, 'Y' junction, double branch, cross (all sockets or socket and spigot) collars, caps and plugs suitable for 100mm bore CI pipe, complete all as specified and all as directed by Engr-in-Charge.

Supply only Circuit board PLC for dosing pump,complete all as specified and as directed. (Make -OEM/EQUIVALENT.)

Supply only 1/2" dia gate Valve for dosing pump,complete all as specified and as directed. (Make -OEM/EQUIVALENT.)

Supply only Strainer (foot valve) for dosing pump,complete all as specified and as directed. (Make -OEM/EQUIVALENT.)

Supply only PVC storage tank of capacity 100 Ltr with colsed top ISI mark for liquide chlorine for dosing pump,complete all as specified and as directed. Make: OEM/Equivalent.

Supply only Injection check valve for dosing pump ,complete all as specified and as directed.

Supply only Adaptor with connecting nut for dosing pump ,complete all as specified and as directed.

Supply only pump tube for dosing pump complete all as specified and directed.

Supply only PVC made heavy duty NRV of 25 mm bore ,complete all as specified and as directed.

Dismantling and taking out of hand pump along with pipe,strainer etc for repairing reassembling and re-installing/connecting hand pump accessories, after repairs Complete all as specified and directed.(Spare Parts shall be measured & paid under relevant items).

Drilling vertical bore upto 80 ft manually/mechanically suitable for 80 mm dia GI pipe and fixing of hand pump,5 hp pump with all electrical connection including required fittings for fixing of hand pump and PCC work.(note-spare parts will be measured and paid sepratley)

Supply only PVC strainer/ filter, 80 mm dia 8'.0" long for hand pump,complete all as specified and as directed.

Supply only MS Plunger with rod for hand pump,complete all as specified and as directed.

Supply only Leather washer for hand pump,complete all as specified and as directed.

Supply only Leather bucket with plate for hand pump,complete all as specified and as directed.

Supply only MS Nuts and bolts (9/16" x 4", 1/2" x 4", 5/8" x 4" with washer) for hand pump,complete all as specified and as directed.

Supply only MS Handle for hand pump,complete all as specified and as directed.

Supply only Cast iron base plate for hand pump,complete all as specified and as directed.

Supply only Cast iron complete hand pump set complete all as specified and as directed. (Make : POPULAR or equivalent)

Supply and fix in repair vertical check valve of gun metal , complete all as specified and as directed.

S&F replacement of check nut & Spindle of sluice valve of size 80 mm bore as existing pattern all as specified and directed.

All as per item No. 82 but size of check nut 100 mm bore complete all as specified and directed

All as per item No. 82 but size of check nut 150 mm bore complete all as specified and directed

M&L for Boring of holes under road, pavement, hard standing to accomodate 40mm dia to 150mm GI pipe without damaging the existing road and getting out any type of soil and disposal of soil to a distance n. exc 50 mtr from the site of work complete all as specified and directed

M&L for cutting of existing flooring / plinth protection/ hard standing to accomodate any pipe of any size and making good distributed surface with PCC 1:2:4 type B-1 complete all as specified and directed

Supply only Swimming Pools Almunium Suction Head 24" For Pool Cleaning for Cleaning of swimming pool complete all as specified and directed by Engr-in-Charge.

Supply only PVC core nylon brush 18" long with suiteble rod for Cleaning of swimming pool complete all as specified and directed by Engr-in-Charge.

Saranga Saikia (BID ID -3325758)

M/S RK Trading (BID ID -3327557)

M/s PRABIR ENTERPRISE (BID ID -3327512)

M/S CHAKRA GOHAIN (BID ID -3323860)

M/S P R SINGH AND SONS (BID ID -3322191)

M/s Pramillabh Construction (BID ID -3320280)