REPAIR/ REPLACEMENT AND COMPREHENSIVE MAINT TO EQUIPMENT AND CONNECTED ITEMS AT SWIMMING POOL, STP AND PUMP HOUSE BLDG AND REPAIR AND MAINTENANCE TO PUMP SETS, MOTOR, CHLORONOME PLANTS AT 20 WING AFS BAGDOGRA UNDER GE (AF) BAGDOGRA

Amount

Taking down unserviceable raw sewage non clog pump set from foundation and transportation to work shop for repairing from sewage treatment plant to contractor work shop for carry out necessary repair work to pump set submersible and transporting it back to site of water supply installation of AF Stn area complete all as specified and directed.

Dismantling and rewinding of raw sewage non clog pump set of any make and capacity 10 HP at STP Phase-III of existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of approved make complete all as specified and directed.

All as per item No. 2.00 above, but of capacity 7.5 HP at STP Phase-III.

All as per item No. 2.00 here-in-before, but of capacity 5 HP at SLP Phase-I.

Supply and replace the impeller for 5 to 10 HP non clog pump set complete all as specified and directed.

All as per item No. 5.00 above, but shaft sleeve.

All as per item No. 5.00 here-in-before, but ball bearing 6305.

All as per item No. 5.00 here-in-before, but ball bearing 6308.

All as per item No. 5.00 here-in-before, but V belt B56.

Lifting of suction pipe with the help of chain pulley arrangement at STP Phase-III and SLP Phase I and refixing after replacing unserviceable Foot Valve 100 mm dia including taking down as directed by Engr-in-charge.

All as per item No. 10.00 above, but GI pipe heavy duty 100 mm dia for column pipe including taking down old unserviceable one.

Cleaning of slush deposited in the sewage collection sump by the help of supply of jet water and sewage lifting pump complete all specified and directed by Engr-in-charge.

Taking down unserviceable air blower of capacity 3 HP from foundation and transportation to work shop for repairing from sewage treatment plant to contractor work shop for carry out necessary repair work to pump set submersible and transporting it back to site of water supply installation of AF Stn area complete all as specified and directed.

Dismantling of air blower, servicing and replacement of unsv parts and refitting the same of 3 HP capacity including testing complete all as specified and directed.

Lifting and taking out complete submersible pump set 12.5 HP alongwith the column pipes with the help of chain pulley block from borewell after disconnecting electrical connections from panel, disconnecting from suction and delivery pipe lines, disconnecting column pipes, testing electric motor to ensure its actual condition, separating pump & motor from coupling, reassembling and lowering pump & motor into borewell complete, connecting, testing and commissioning alongwith connected items such as MS column pipe, cable, re-fixing after receiving repaired and tested submersible pump with new nuts & bolts, rubber packing with proper alignment and making electrical connection, binding of cable with column pipe with nylon rope complete including testing complete all as specified and directed.

Transportation of submersible pump set 3 phase any make and capacity 12.5 HP from pump house to contractor work shop for carry out necessary repair work to pump set submersible and transporting it back to site of water supply installation of AF Stn area complete all as specified and directed.

Dismantling of submersible motor any make and any capacity 12.5 HP and reassembling complete after carry out necessary repair work & testing complete for smooth working to entire satisfaction of Engineer-in-charge. Note: New parts/components to be replaced shall be measured and paid separately under supply only.

M&L for rewinding of submersible motor of capacity 12.5 HP 3 phase 400/415 volts any make and capacity as mentioned below existing size and gauge of PVC insulated single core copper winding wire submersible including all insulating material of approved make complete all as specified and directed.

Supply only upper and lower housing bushes of any material complete suitable for 12.5 HP complete all as specified and directed.

Supply only Impeller suitable for 12.5HP complete all as specified and directed.

Supply only stainless steel bush each set suitable for 5HP to 15 HP submersible motor complete all as specified and directed.

Supply only 'O' ring kit and oil seal kit suitable for any capacity complete all as specified and directed.

Repair of bowl bush of housing by proper machine work of housing and pump soft & replacement of bowl bush for 5 HP to 15 HP complete.

Supply only rubber packing 20mm thick consisting of 8/6" holes for 80 mm to 150 mm dia column pipe complete all as specified and directed.

M&L for jointing the submersible cable by jointing kit of suitable size by means of jointing material & making the leak proof jointing complete all as specified and directed by Engineer-in-Charge.

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 surface 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 directed.

All as per item No 26.00 above, but capacity 6000 gallon per hour complete.

Taking out existing unserviceable PVC nozzles and supply and fixing 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 directed. Make: RMCO/ASHFORD or equivalent.

M&L for preparation of old painted internal steel surface of filtration plant shell painting with one coat of black bituminous paint suitable for drinking purpose of area exceeding 10 cm in width or girth not otherwise described complete all as specified and directed.

M&L for preparation of old painted external surface of filtration plant shell painting with first quality of synthetic enamel paint (grey shed) exceeding 10 cm in width or girth not otherwise described complete all as specified and directed.

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

All as per item No. 31.00 above, but gravel of size 6mm to 12mm.

All as per item No. 31.00 here-in-before, but gravel of size 3mm to 5mm.

All as per item No. 31.00 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”x1/32 inches in layers complete all as specified and directed.

Taking water sample for chemical analysis test for potability of water from approved govt lab like National Test House Kolkata/ RV Bridge Kolkata 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. Make: RMCO/OASIS.

Taking out old unserviceable rubber gasket from position with taking out of nuts, bolts etc and supply and fixing new rubber gasket of size 75cm 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 directed. Note: Nuts, bolts & washers shall be measured & paid separately under relevant item here-in-before.

All as per item No. 38.00 above, but of size 45cm outer dia.

M&L for mild steel machine made nut, bolt & washer 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 100 mm from existing position and supply and fixing butter fly valve lever operated CI 100 mm dia including necessary joints by means of bolts, nuts washers and rubber gaskets complete all as specified and directed.

M&L for GI water tubing heavy grade 80mm bore including new threading by lathe for fixing heavy duty socket suitable for column pipe including taking down complete all as specified and directed.

S&F MS socket 80 mm bore pipe, heavy duty suitable GI pipe 80 mm dia heavy duty column pipe including taking out unserviceable one complete all as specified and directed. Make: TATA/ JINDAL/ SURYA ROSHNI/ PRAKASH.

S&F MS socket 100 mm bore pipe, heavy duty suitable GI pipe 100 mm dia heavy duty column pipe including taking out unserviceable one complete all as specified and directed. Make: TATA/ JINDAL/ SURYA ROSHNI/ PRAKASH.

S&F semi automatic star-delta starter in sheet metal enclosure type MK with single phase protection feature suitable for motor rating AC-3 phase, 415V, 10 HP, 6-10 A range complete all as specified and directed. Make: L&T - CAT SS96255POVO or C&S, Seimens.

Taking down old unserviceable air release valve form existing position and supply and fixing 150mm bore air release valve double action chamber to conforming IS-14845 complete all as specified and directed.

Taking down old unserviceable non return valve form existing position and supply and fixing 150mm bore cast iron non return valve conforming to IS-5312, PN-1.6 including necessary joints by means of bolts, nuts, washers and rubber gaskets complete all as specified and directed.

Taking down old unserviceable sluice valve from existing position and supply and fixing 150mm bore cast iron sluice valve conforming to IS-14846 PN 1.6 clockwise dosing with flanged ends and iron wheel including necessary joints by means of bolts, nuts, washers and rubber gaskets complete all as specified and directed.

All as per item No. 48.00 above, but size of 100 mm bore complete.

All as per item No. 48.00 here-in-before, but size of 80 mm bore complete.

M&L for vacuum hose pipe 38 mm dia suitable for suction sweeper swimming pool including taking down complete all as specified and directed.

Excavation in trenches in soft/ loose soil n.exc 1.5 mtr wide n.exc 1.5 mtr deep getting out soil complete all as specified and directed.

Returning, filling in including spreading, levelling, well ramming in layers n.exc 25 cm thick in a layer complete all as specified and directed.

Removing excavated material (Soil) n.exc 50 mtr and depositing where directed at a level n.exc 1.5 mtr above the starting point complete all as specified and directed.

Taking up or down GI water tubing 80 mm bore including fitting connections and cleaning tubing, fitting/ cutting threading of serviceable tubing for relaying and removal of unserviceable tubing complete all as specified and directed.

All as per item No. 55.00 above, but for 50 mm bore complete.

All as per item No. 55.00 here-in-before, but for 40 mm bore complete.

All as per item No. 55.00 here-in-before, but for 25 mm bore complete.

All as per item No. 55.00 here-in-before, but for 20 mm bore complete.

All as per item No. 55.00 here-in-before, but for 15 mm bore complete.

Re-fixing only old serviceable GI pipe incl fittings and connection in new or old position (pipe obtained from item No 54 above) of size 80 mm bore complete all as specified and directed.

All as per item No 61.00 above, but for 50 mm bore complete (pipe obtained from item No 56 here-in-before).

All as per item No 61.00 here-in-before, but for 40 mm bore complete (pipe obtained from item No 57 here-in-before).

All as per item No 61.00 here-in-before, but for 25 mm bore complete (pipe obtained from item No 58 here-in-before).

All as per item No 61.00 here-in-before, but for 20 mm bore complete (pipe obtained from item No 59 here-in-before).

All as per item No 61.00 here-in-before, but for 15 mm bore complete (pipe obtained from item No 60 here-in-before).

Supply and laying 80mm bore GI water tubing medium grade with all fittings in trenches complete all as specified and directed.

All as per item No 67.00 above, but for 50 mm bore complete.

All as per item No 67.00 here-in-before, but for 40 mm bore complete.

All as per item No 67.00 here-in-before, but for 25 mm bore complete.

All as per item No 67.00 here-in-before, but for 20 mm bore complete.

All as per item No 67.00 here-in-before, but for 15 mm bore complete.

Supply and laying/ fixing 90 mm bore polyprolene random pipe (PP-R) PN 16 in three layer incl fixing of all fittings made out of PP–R as required for fixing to wall or laid in floor/ ground complete all as specified and directed.

All as per item No 73.00 above, but 50 mm dia complete.

All as per item No 73.00 here-in-before, but 40 mm dia complete.

All as per item No 73.00 here-in-before, but 25 mm dia complete.

All as per item No 73.00 here-in-before, but 20 mm dia complete.

S&F in repair, 50 mm dia gun metal gate valve (screwed) with iron wheel head, screwed both ends for iron/ PPR pipe complete all as specified and directed.

All as per item No 78.00 above, but 40 mm dia complete.

All as per item No 78.00 here-in-before, but 25 mm dia complete.

All as per item No 78.00 here-in-before, but 20 mm dia complete.

All as per item No 78.00 here-in-before, but 15 mm dia complete.

M&L for repairs to GI pipe line by cutting the damaged portion, threading both sides, insertion of same bore GI long screw, testing for leak proof in position complete all as specified and directed. Note: Excavation & earthwork shall be measured separately.

S&F GI flange for 80 mm bore pipe, medium grade with suitable size nuts and bolts and double washers including 6 mm thick rubber gasket including taking out unserviceable one complete all as specified and directed.

M&L for run lead joints in position for cast iron spigot and socket ends for size 200 mm dia complete all as specified and directed.

All as per item No 85.00 above, but size of 150 mm dia complete.

All as per item No 85.00 here-in-before, but size of 100 mm dia complete.

All as per item No 85.00 here-in-before, but size of 80 mm dia complete

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum.

NAYAK BROTHERS (BID ID -3102859)

BUILDERS ASSOCIATE (BID ID -3105404)

NIRANJAN SARKAR (BID ID -3103541)

M/S BENGAL ENGINEERING ENTERPRISES (BID ID -3103454)

SREE SWAPAN KUMAR GHOSH (BID ID -3101362)

RAMKRISHNA NARAYAN ROY & CO (BID ID -3102036)

UNISON CONSTRUCTION (BID ID -3104453)

M/S MANAS MITRA (BID ID -3100956)