REPAIR REPLACEMENT OF OLD UNSERVICEABLE CI DI GI PIPE LINES INCLUDING ALLIED WORKS AT VARIOUS LOCATION UNDER AGE EM OF GE BENGDUBI

Amount

Excavation in trenches not exceeding 1.50 m wide and 1.5 mtr depth for foundation etc, not exc 10 sqm on plan and getting out in soft/loose soil complete all as specified and directed.

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

Removing excavated materials (soil) not exc. 50m and depositing where directed at a level not exc. 1.5m above the starting point complete all as specified and directed.

M&L for PCC 1:3:6 type C2 using 40 mm grade aggregate for making good the road/path etc.complete all as specified and directed.

M&L for surface excavation n.exc 30 cm deep and averaging 15 cm deep getting out in soft/loose soil for cleaning and cutting of grass/bushes (at zero level) in and around the installation / yard and spreading thin layer of anti-vegitaion chemical to prevent abnormal growth of grass/bushes including removal of surplus soil complete all as specified and directed. (Note :- The above item shall be carried out through out the contract period as and when required and shall measured and paid once only)

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 15 mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 20mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 25mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 40mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 50mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 80mm dia bore complete all as specified and as directed

Taking down steel tubing & connections including cleaning for refixing serviceable pipe or removal balance pipe of 100mm dia bore complete all as specified and as directed

M&L for steel water tubing medium grade galvanised with new fitting laid in trenches for the following bore of pipes complete all as specified and as directed :

15 mm Bore.

20 mm Bore.

25 mm Bore.

40 mm Bore.

50 mm Bore.

80 mm Bore.

Labour only for refixing steel water tubing medium grade galvanised with new fitting laid in trenches/wall obtained from13.01 to 13.06 here-in-before for the following sizes :

15 mm Bore.

20 mm Bore.

25 mm Bore.

40 mm Bore.

50 mm Bore.

80 mm Bore.

100 mm Bore.

S&F PPR (Poly Propylene random co-polymer) pipe size 110mm OD, PN-10 (SDR-11) IS-15801, 3-layer (outer green coloured UV stablized, middle black coloured UV stablizer and innermost layer white coloured with anti-microbial property) having thermal stability for hot & cold water supply with and including all necessary PPR plain and brass threaded fittings, laid in trenches complete all as specified & directed. (NOTE:- Contractor shall give 7 years warranrty certificate of the manufacturing defect and leak proof material & 50 years product life certificate will be submitted before RAR process).

All as per item No. 15.00 above but for 90mm dia.

All as per item No. 15.00 above but for 50mm dia.

All as per item No. 15.00 above but for 40mm dia.

All as per item No. 15.00 above but for 25mm dia.

Taking down cast iron/ductile iron pipes 80 mm dia, Checking, cleaning internally by using steel brush /scrubber throughly to remove all rusts/slit/mud etc from pipe and Keep the Serviceable pipes & lead in safe custody for refixing in existing/new position including replacing worn out Sockets, nuts, bolts, flange, gasket complete all as specified and directed.

All as per item No. 20 above but for 100 mm dia.

All as per item No. 20 above but for 150 mm dia.

Labour only for refixing CI/DI Pipes any type with fittings fixed to floor / laid in trench obtained from item No. 20 to 22 here-in-before for the following sizes :

80 mm Bore.

100 mm Bore.

150 mm Bore.

Supply, Jointing and laying in trenches in standard length , centrifugally cast ( spun ) ductile iron ( DI ) pressure pipes,with inside cement mortar lining and black bitumen external coating, nominal daimeter, class K-7 classification, confirming to IS-8329 ISI marked , including pushon and rubber gasket joints and jointing necessary DI specials etc including testing, ,S/S including specials class K9 of 300 mm dia complete all as specfied and directed. NOTE :- DI specials/ fittings will be measured and paid separately under relevent items of this Schedule

80 mm Bore.

100 mm Bore.

150 mm Bore.

M&L for attending pipe line break down of CI/DI pipe of 80 mm dia by making lead joint with lead and spun yarn and moulding clay or Rubber gasket joint including taking up/down pipe using chain pulley or rope and excavation in any type of soil,returning filling and removel of surplus soil and testing of pipe line complete all as specfied and directed.

All as per item No. 25 here-in-before but CI/DI pipe of 100 mm dia

All as per item no. 25 here-in-before but CI/DI pipe of 150 mm dia

All as per item no. 25 here-in-before but CI/DI pipe of 250 mm dia

All as per item no. 25 here-in-before but CI/DI pipe of 300 mm dia

M&L for run lead joints for CI pipe of the following bore of pipe with spun yarn and testing complete all as specfied and directed.

80 mm Bore.

100 mm Bore.

150 mm Bore.

200 mm Bore.

250 mm Bore.

300 mm Bore.

M&L for Tyton rubber joint for CI/DI pipe of size 100 mm dia complete all as specified and directed.

M&L for Tyton rubber joint for CI/DI pipe of size 150 mm dia complete all as specified and directed.

M&L for Tyton rubber joint for CI/DI pipe of size 200 mm dia complete all as specified and directed.

M&L for Tyton rubber joint for CI/DI pipe of size 250 mm dia complete all as specified and directed.

M&L for Tyton rubber joint for CI/DI pipe of size 300 mm dia complete all as specified and directed.

M&L for drilling and tapping cast iron water mains (in position) for branch connections of internal dia 20 mm complete all as specfied and directed.

Taking down unserviceable CI sluice valve 80 mm dia complete all as specfied and directed.

Taking down unserviceable CI sluice valve 100 mm dia complete all as specfied and directed.

Taking down unserviceable CI sluice valve 150 mm dia complete all as specfied and directed.

Taking down unserviceable CI sluice valve 200 mm dia complete all as specfied and directed.

Taking down unserviceable CI sluice valve 250 mm dia complete all as specfied and directed.

S&F sluice valve cast iron confirming to IS : 14846 both end flanged with S/S spindle with nut class PN - 1.6 ISI marked complete with hand wheel nuts, bolts, washers & rubber gusket etc complete all as specfied and directed for the following sizes.

80 mm bore

100 mm bore

150 mm bore

200 mm bore

250 mm bore

S&F Brass Spindle suitable for 80mm to150mm dia sluice valve including lock nut taking down of old unsv one complete all as specfied and directed.

S&F Brass Spindle suitable for 200mm to 300mm dia sluice valve including lock nut taking down of old unsv one complete all as specfied and directed.

S&F Cast Iron Air release valves conforming to IS 14845-2000 with tamper proof arrangement of size 80mm bore incl taking down of old unsv one complete all as specfied and directed.

S&F CI/DI bends (any type, radius and angel) tapers any type (straingh, bend, increasing, decreasing or double socket etc) tee pieces single brancehs 'Y' junction double branch, cross (all socket or socket and spigot) collars, caps and plugs for following bore of pipes complete all as specfied and directed.

Upto 150 mm bore

200 mm to 300 mm bore

Taking down unserviceable gate valve 20mm, 25mm, 40 mm & 50mm dia complete all as specfied and directed.

S&F Gun metal gate valve, Cast Copper alloy, screwed down high pressure with Crutch or Butterfly handle screwed both ends for iron pipe complete all as specified and directed for the following size:-

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Taking down unserviceable float valve from PVC Tank with fittings of size 20/25 mm complete all as specified and directed.

S&F float valve with complete fittings for PVC Tank of dia 20 mm complete all as specified and directed.

S&F float valve with complete fittings for PVC Tank of dia 25 mm complete all as specified and directed.

M&L for construction of brick masonry valve pit chamber of size 1200x1200x900mm (internal dimension) with one brick thick wall in cement mortar 1:4 on base concrete 100mm thick PCC 1:4:8 type D-2 (using 40mm graded stone aggregate) as in foundation of chamber including finished the surfaces of concrete even and smooth , and 15mm thick rendering in cement mortor (1:4) internally and externally up to 15cm below ground level, providing valve pit cover made of 150 mm thick RCC Slab in cement concrete 1:1.5:3 type B1 using 20mm graded stone aggregate having reinforcement 12mm dia both way @ 150mm c/c in double layer including provision of opening for valve operation as directed and including two coat cement based paint and necessary excavation and earth work in soft/loose soil including dismantling of existing valve pit complete all as specified & directed.

M&L for construction of brick masonry valve pit chamber of size 900x900x900mm (internal dimension) with one brick thick wall in cement mortar 1:4 on base concrete 100mm thick PCC 1:4:8 type D-2 (using 40mm graded stone aggregate) as in foundation of chamber including finished the surfaces of concrete even and smooth , and 15mm thick rendering in cement mortor (1:4) internally and externally up to 15cm below ground level, providing valve pit cover made of 150 mm thick RCC Slab in cement concrete 1:1.5:3 type B1 using 20mm graded stone aggregate having reinforcement 12mm dia both way @ 150mm c/c in double layer including provision of opening for valve operation as directed and including two coat cement based paint and necessary excavation and earth work in soft/loose soil including dismantling of existing valve pit complete all as specified & directed.

M&L for taking out existing filter media like sand, gravel & ferminex from filtration plant of capacity 10,000 gallon per hour including soda & Alum Pots & removing from site and cleaning the internal surfaces of filtration plant with soda & Alum Pots with using PVC/Steel wire brushes to remove all scales, iron particles and finally clay & other foreign particles with clean water complete all as specified and as directed.

Taking out existing unserviceable PVC Nozzles and Supply and fix new PVC double deck type PP strainer nozzle of size 10mm to 15mm (3/8” to ½” inch) dia, push type complete all as specified and as directed.

Preparation of internal steel surfaces and pressure type iron removal filtration plant 6000 to 8000 GPH capacity by scraping with wire brush and removing all dust, scales and other foreign particles and thoroughly washing with clean water and drying and applying two coats of anti-corrosive black bituminous paint suitable for drinking purpose on entire internal surfaces (except glavanised surfaces) of filtration plants complete all as specified and directed.

M&L for preparation of old painted external surfaces alongwith connected external steel components of pressure type iron removal filtration plant 6000 to 8000 GPH capacity by scrapping and applying two coats of blue synthetic enamel paint over a coat of red oxide primer complete all as specified and directed.

M&L for packing of new filter media of Gravel size 12 mm to 25 mm in layers of approved quality obtained from ‘Barakar River’ complete all as specified and directed.

All as per item No. 58 here-in-before but Gravel of size 6 mm to 12 mm

All as per item No. 58 here-in-before but Gravel of size 3 mm to 5 mm

All as per item No. 58 here-in-before but Sand of size 16/30 mesh.

M&L for packing of chemical of ‘Feriminex’ (MNO2) catalytic agent of size 1/16" x 1/32" in layers complete all as specified and directed.

Replacement of unserviceable water pressure gauge with new pressure gauge capacity 7 kg/sqcm to 10 kg/sqcm complete all as specified and directed.

Taking out old unserviceable rubber gasket from position with taking out of nuts, bolts etc and S&F New rubber gasket of size 75 cm outer dia, 3mm thick rubber sheet of approved quality fixed with suitable size & dia mild steel machine made nuts, bolts & washers of required size & numbers complete all as specified and as directed. Note :- Nuts, bolts & washers shall be measured & paid separately under relevant item of this schedule

All as per item no. 64 here-in-before but size 45 cm outer dia.

Checking overhauling and pressure testing of normal working pressure and replacement of unserviceable gauges safty "V' belt compressor piston rings etc for air compressor stationary type electrically operated air cooled complete including painting with two coats of synthetic enamel paint (first quality) after preparation of surfaces by scraping old paint complete all as specified and directed.

S&F mild steel machine made nuts, bolts & washers of size 15mm(5/8”) dia and 75mm (3”) long or nearest suitable sizes for top cover and side cover of Soda /Alum pot complete all as specified and directed.

Taking down old unserviceable butter fly valve of size 80mm dia from existing location and supply and fixing butter fly valve of size 80mm dia lever operated suitable for IRP including nuts and bolt and rubber gasket complete all as specified and directed.

S&F in repair the following spares for dosing pumps at various incl taking down of unsv spare parts complete all as specified and directed

Varistor assy

Ring seal teflon

EPU Coil with thermostate

Stroke knob

Pump panel box assy

3/16 " x 3/4" pan head screw

Pulser with varistor

Clapper with shaft

Liquifarm (Diaphragm)

Circlip for EPU

EPU Spring with cap

EPU Assy

Pump Tube Part No. MCCP207 (Set of 5 Pcs)

Injection Check Valve 3/8" Part No.MCINJ38 (Set of 5 Pcs)

Supply & fix PVC 3/8 " white suction/Discharge tubing for existing granual chlorine dosing system complete all as specified and directed.

Supply & fix LDPE pipe 8 mm dia suitable for existing granual chlorine dosing system complete all as specified and directed.

Supply only OT solution for chlorine test in each bottleof 500 ml coplete complete all as specified and directed.

Supply only chlorine test kit with coloured sample complete with all testing fitments and OT solution in rexine finish box coplete complete all as specified and directed.

S&F digital flow meter cum Totalizer for clear water insertion type with SS-304 welden adopter with connected item complete all as specified and directed.

M&L and repair for LED Aviation/ Obstruction Light installed on the Roof of Overhead reservoir or on High mast light with taking down old unserviceable one complete all as specified and directed.

S&F Smart metal water level indicator with alarm on full tank with 05 no sensors of stainless steel molded with polypropylene contact type water level sensor for overhead water tank complete all as specified and directed.

S&F in replacement of 63 mm, 3-Inch Gun metal Brass Single headed Fire Hydrant valve ISI Mark complete all as specified and directed.

S&F in repair of alum dosing pumps 5 LPH 6 BAR incl taking down of unsv dosing pump complete all as specified and directed.

(Note : The Scope of Work contained in 'Sch of Credit' amounting to Rs. 82,080.00 (refer Tender Srl Page No 29). The Quoted sum shall be arrived at after deducting the amount of “Sch of Credit” from the total amount of the ‘BoQ’

M/S GURUNG CONSTRUCTION

BHATTACHARJEE AND SONS

Shree Ram Construction

M/S UTTAM ENTERPRISES

CHAKRABORTY AND SONS

SHRI S K BHATTACHARJEE

GOUTAM KUMAR GHOSH

S K ENTERPRISE