REPAIRS MAINT OF PIPE LINES VALVES PUMPS MOTORS ETC AND OTHER ALLIED WORKS IN KLP BOGRA AND HOPPER TANK AREA UNDER AGE EM OF GE SUKNA

Amount

Excavation in trenches, not exc 1.5 m wide and not exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out all excavated material in soft / loose soil complete all as specified and directed.

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

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed.

S&F 20 mm bore galvanised steel water tubing medium grade and including necessary GI fitting (such as bends, elbows, tees etc.) and laid in trenches including taking down complete all as specified and directed. Make - Tata / Jindal Steel / Prakash / Surya Roshni Ltd. / Bhushan Power & Steel Ltd. / BST

All as per Sl item No 4 above but 25 mm bore.

All as per Sl item No 4 above but 40 mm bore.

All as per Sl item No 4 above but 50 mm bore.

All as per Sl item No 4 above but 80 mm bore.

S&F 20 mm bore gun metal globe or gate valve with iron wheel head screwed both ends for iron pipe and fixed including taking down complete all as specified and directed. Make:- Kirloskar / Leader / Zoloto / Venus / Audco / Upadhyaya

All as per Sl item No 9 above but 25 mm bore.

All as per Sl item No 9 above but 40 mm bore.

All as per Sl item No 9 above but 50 mm bore.

All as per Sl item No 9 above but 80 mm bore.

M&L 80 mm bore cast iron pipes with spigot and socket ends centrifugally cast class LA, in any length, laid in trenches including taking down complete all as specified and directed. Make:- Neco Centri / BIC / Electro Steel Casting Ltd / AIC / PIC / Jai Balaji Industries / Srikalahasti Pipes Ltd

All as per Sl. item No. 14 above but 100 mm bore.

All as per Sl. item No. 14 above but 150 mm bore.

All as per Sl. item No. 14 above but 200 mm bore.

All as per Sl. item No. 14 above but 300 mm bore.

S&F cast iron fittings such as bends (any type, radius 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 for spigot socketed CI pipes upto 150 mm bore complete all as specified and directed. Make:- Neco Centri / BIC / Electro Steel Casting Ltd / AIC / PIC / Jai Balaji Industries / Srikalahasti Pipes Ltd

All as per Sl. item No. 19 above but 200 to 300 mm bore.

S&F 80 mm bore sluice valve cast iron body class PN-1.6, conforming to IS-14846:2000, with flanged ends drilled suitable, having brass spindle with iron wheel handle at top and including necessary fixing arrangements such as nuts, bolts, washers, gaskets etc. including taking down complete all as specified and directed. Make:- Kirloskar / Leader / Zoloto / Venus / Audco / Upadhyaya

All as per Sl. item No. 21 above but 100 mm bore.

All as per Sl. item No. 21 above but 150 mm bore.

All as per Sl. item No. 21 above but 200 mm bore.

All as per Sl. item No. 21 above but 300 mm bore.

M&L construction of brick masonry valve pit of size 600 x 600 x 600 mm (internal dimensions) with and including one brick thick wall built in CM (1:4) over 100 mm thick PCC (1:4:8) type D-2 (using 40 mm graded crushed stone aggregate) as in foundation, 50 mm thick PCC 1:2:4 type B1 coping on top of wall, 15 mm thick rendering in CM (1:4) on internal & exposed external surface upto 15 cm below GL, valve pit cover made with 3.15 mm thick MS sheet, openable in two leafs with necessary locking arrangement, hinges, handles, 40 x 40 x 5 mm angle iron frame fixed on top of valve pit using MS flat iron 40 x 5 mm hold fast 150 mm long, painting MS cover and frame with two coats of synthetic enamel paint over a coat of red oxide primer and including necessary earth work in any type of soil and dismantling complete all as specified and directed. Make of paint:- Jotun India Pvt Ltd / Apcolite (Asian) / Luxol (Berger) / Jenson & Nicholson Paints Ltd (Borolac) / Shalimar Paints Ltd (Superlac)

All as per Sl. item No. 26 above but 900 x 900 x 900 mm.

All as per Sl. item No. 26 above but 1000 x 1000 x 1000 mm.

All as per Sl. item No. 26 above but 1200 x 1200 x 1200 mm.

Taking out filter agents / media from existing MS pressure filter of 35,000 Gallons capacity having filter media 35 Cum (Approximate) and including cleaning thoroughly inner surface of filter 27 Sqm (Approximate) by scrapping and washing with water, removing silt / rust formation / old paint out of the filter & disposing at a distance n. exc. 50 m screening / segregating serviceable filter media, washing with lime / bleaching powder solution, cleaning, finally washing with clear water and & re-filling the same in filter in accordance as per original layout / arrangement after painting internal surface of tank including filling / laying of new filter media (as required), replacement of damaged PVC strainers / fixing of old serviceable PVC strainers complete all as specified and directed. Note :- Supply of new filter media, PVC strainers and painting work will be measured and paid separately under relevant items.

Supply only PVC strainer suitable for MS pressure filter of 35,000 Gallons capacity as per existing complete all as specified and directed. Note :- Rate for fixing of PVC strainers shall be deemed to be inclued in the quoted rate of Sl. Item No 30.

Supply only 8/12 mesh coarse sand (Barakar), screened & cleaned for pressure filters complete all as specified and directed. Note :- Rate for filling of sand shall be deemed to be inclued in the quoted rate of Sl. Item No 30.

Supply only 16/30 mesh coarse sand (Barakar), screened & cleaned for pressure filters complete all as specified and directed. Note :- Rate for filling of sand shall be deemed to be inclued in the quoted rate of Sl. Item No 30.

M&L preparation of inner surface of MS steel pressure filter and including applying two coats of black bituminous paint (drinking water grade) over a coat of primer complete all as specified and directed. Make :- Jotun India Pvt Ltd / Apcolite (Asian) / Luxol (Berger) / Jenson & Nicholson Paints Ltd (Borolac) / Shalimar Paints Ltd (Superlac)

M&L preparation of old painted external surface of MS steel pressure filter and connected channels / beams, CI pipe etc. and including applying one coat of synthetic enamel paint complete all as specified and directed. Make :- Jotun India Pvt Ltd / Apcolite (Asian) / Luxol (Berger) / Jenson & Nicholson Paints Ltd (Borolac) / Shalimar Paints Ltd (Superlac)

M&L cleaning and removing of settled silt and mud mixed with sand, gravel etc, manually from hopper tank of size 25 x 32 feet (approximate) at top, 4 x 4 feet (approximate) at bottom & 30 feet (approximate) depth and including disposal of debris to a distance n.exc. 100 m, pumping out of stagnated water with suitable pump and scraping of inner surface of the hopper tank by wire brush and removing moss formation, scraping out deposited rust / paint etc. from the channels / pipe fitted inside the hopper tank and including preparation of surfaces and applying one coat of drinking water grade water resistance bituminous paint with necessary T&P, as and when required at site complete all as specified and directed.

M&L for cleaning of RCC underground water sump of 5,000 gallons capacity by pumping out the accumulated water using pumpset and including removing complete sludge by suction process using either suction pump or vacuum process, cleaning internal surface of sump completely by scraping and washing using high pressure water jet to dislodge all the mud, dirt, algae, fungus and layers of calcinations etc., vacuum cleaning to remove dislodged waste, further cleaning with bleaching powder on internal surface of the sump to make it sterilize and degerming of any further suspended bacteria, viruses which might have remained in the tank without disturbing the water supply to the area and including writing details of sump capacity, date of cleaning and due date of cleaning on the sump wall with paint and applying one coat of white wash to external exposed surfaces complete all as specified and directed.

All as per Sl. item No. 37 above but 20,000 Gallons capacity.

All as per Sl. item No. 37 above but 40,000 Gallons capacity.

All as per Sl. item No. 37 above but 50,000 Gallons capacity.

All as per Sl. item No. 37 above but 1,00,000 Gallons capacity.

M&L for cleaning of RCC / Steel overhead tank of 40,000 / 50,000 gallons capacity cleaning internal surface of tank completely by scraping and washing using high pressure water jet to dislodge all the mud, dirt, algae, fungus and layers of calcinations etc., vacuum cleaning to remove dislodged waste, further cleaning with bleaching powder on internal surface of the tank to make it sterilize and degerming of any further suspended bacteria, viruses which might have remained in the tank without disturbing the water supply to the area and including writing details of sump capacity, date of cleaning and due date of cleaning on the sump wall with paint complete all as specified and directed.

All as per Sl. item No. 42 above but 75,000 Gallons capacity.

All as per Sl. item No. 42 above but 1,00,000 Gallons capacity.

Cleaning and removing of silt / mud / sand / shingle / vegetations etc, from intake channels of approximate size 60 m (length) x 1.2 m (width) x 1.2 m (depth) completely from inlet point from river stream to facilitate flow / conveying of water to the desired extent and including disposal of debris to a distance n.exc. 50 m with necessary T&P as required complete all as specified and directed.

Cleaning and removing of silt, dense mud mixed with sand / shingle / gravel etc, from collector pond of approximate size 11.30 x 5.75 x 3.00 m (cleaning upto 0.5 m depth maximum) and including disposal of debris to a distance not exc. 250 m and cleaning of choked / partially choked 6 Nos. intake pipes leading to adjacent pre-sedimentation tank with necessary T&P as required complete all as specified and directed.

Cleaning and removing of silt, dense mud mixed with sand / shingle / gravel etc, from intake tank of approximate size 13.50 x 4.50 x 3.90 m (cleaning upto 1.3 m depth maximum) and including disposal of debris to a distance not exc. 100 m, thorough cleaning and scraping out all moss formation, cleaning the internal surface of reservoir with bleaching powder with necessary T&P as required complete all as specified and directed.

All as per Sl. item No. 47 above but from intake tank of size 5.50 x 2.50 x 4.00 m.

Cleaning and removing of mud with sand from 2,50,000 gallons capacity RCC circular sedimentation tank, constructed in two concentric RCC chambers of 1,25,000 Gallons capacity each and including disposal of debris to a distance n.exc. 100 m with necessary T&P as required complete all as specified and directed.

Cleaning and removing of settled silt and mud from existing clarifier-flocculator set (RCC) 40,000 gallons capacity and including disposal of debris to a distance n.exc. 100 m and thorough cleaning and scrapping out all moss formation and final treatment of the inner surface of the tank with bleaching powder solution with necessary T&P as required complete all as specified and directed.

Supply only calcium based white or off white free flowing granular chlorination chemical calcium hypochlorite with 65-70% chlorine content complete all as specified and directed.

M/s T K Das

M/s Dharya Enterprises

M/S TANDRA DEY.

M/s Ranjit Kumar Saha

DEBABROTA ROY CHOWDHURY