REPAIR/MAINTENANCE OF PUMPING INSTALLATIONS, VALVES, VALVE PITS AND CONTROL PANELS AT JALAPAHAR AREA UNDER AGE I DARJEELING

Amount

Taking down/out defective/ unserviceable centrifugal multistage Pump set of capacity 75HP from base frame by unscrewing nuts and bolts from pipe and foundation, disconnecting all electric connections etc, shifting pump and motor carefully to Siliguri workshop for necessary repair/overhauling work and transporting back to pump house including reinstallation and testing after connecting all electrical and pipe lines complete all as specified and as directed by Engineer-in-charge.

Taking down/out defective/ unserviceable centrifugal multistage Pump set of capacity 50HP from base frame by unscrewing nuts and bolts from pipe and foundation, disconnecting all electric connections etc, shifting pump and motor carefully to Siliguri workshop for necessary repair/overhauling work and transporting back to pump house including reinstallation and testing after connecting all electrical and pipe lines complete all as specified and as directed by Engineer-in-charge.

Dismantling of defective/ unserviceable 75HP/50HP pump set, segregating serviceable and unserviceable parts, cleaning/washing of serviceable parts, checking functional accuracy, checking wear & tear and replacement of unserviceable parts, reassembling the pump set including painting of pump, motor and base frame with synthetic enamel paint, complete all as specified and as directed by Engineer-in-charge. Note : (i) Costing of necessary nuts, bolts, washers, gaskets, lubricating materials and other consumable materials and minor spare/ work not listed but required for functional of pumpset are included in the quoted rate. (ii) Spare parts as required required to be replaced will be measured and paid under relevant item here-in-after.

Supply only impeller for multi stage centrifugal pump set of make Kirloskar of capacity Pump for 75 HP/50HP complete all as specified and as directed.

Supply only Shaft for Kirloskar Pump for 75 HP/50HP centrifugal pump set complete all as specified and as directed.

Supply only Gun Metal bush for impeller 75HP/50HP Centrifugal Pump Set complete all as specified and as directed.

Supply DE bearing suitable for 75HP/50HP complete all as specified and as directed.

Supply only NDE bearing suitable for pump 75HP/50HP of Make Kirloskar complete all as specified and as directed.

Supply only Roller bearing DE bearing suitable for pump 75HP/50HP of Make Kirloskar complete all as specified and as directed.

Supply only stage casing bush suitable for pump 75HP/50 HP of Make Kirloskar Pump complete all as specified and as directed.

Supply only shaft sleeve suction side/delivery side suitable for pump 75HP/50HP of Make Kirloskar complete all as specified and as directed.

Supply only oil seal (DE & NDE) suitable for pump 75HP/50 HP of Make Kirloskar complete all as specified and as directed.

Supply only 'O' ring for shaft sleeve suitable for pump 75HP/50 HP of Make Kirloskar complete all as specified and as directed.

S&F tyre coupling assembling complete all as specified and as directed.

Disconnecting, dismantling and taking aside the Pump set of 75HP capacity for replacement of existing base frame with new one from the installed position and dismantling of existing PCC / RCC foundation and refixing the same motor by preparing PCC foundation and base frame reqiured for 75 HP pump set including connecting items like nuts, bolts and setting the alignemnt of motor and pump set testing and commissioning all as specified and directed. Note:The quoted rate will be inclusive of required replacement of baseframe/MS channel and PCC / RCC for foundation.

Disconnecting, dismantling and taking aside the Pump set of 50HP capacity for replacement of existing base frame with new one from the installed position and dismantling of existing PCC / RCC foundation and refixing the same motor by preparing PCC foundation and base frame reqiured for 50 HP pump set including connecting items like nuts, bolts and setting the alignemnt of motor and pump set testing and commissioning all as specified and directed. Note:The quoted rate will be inclusive of required replacement of baseframe/MS channel and PCC / RCC for foundation.

Dismantling of 75 HP Motor completely and rewinding of stator coil completely including new insulating material including replacement of worn out parts and heat varnishing motor winding etc incl all allied works and reassembling motor incl replacement of worn out nut bolts fan, end cover, connection terminal and cover etc if required including testing complete all as specified and as directed.

Dismantling of 50 HP Motor completely and rewinding of stator coil completely including new insulating material including replacement of worn out parts and heat varnishing motor winding etc incl all allied works and reassembling motor incl replacement of worn out nut bolts fan, end cover, connection terminal and cover etc if required including testing, complete all as specified and as directed by Engineer-in-charge.

Servicing and maintaining pumping installation by, tightening the gland of pump replacing rubber coupling bushes at Aloobari Pump house 02 Nos pump sets of Capacity 75 HP, complete all as specified and as directed by Engineer-in-charge.

Servicing and maintaining pumping installation by, tightening the gland of pump replacing rubber coupling bushes at Aloobari & Jalapahar Pump house 04 Nos pump sets of Capacity 50 HP, complete all as specified and as directed by Engineer-in-charge.

Dismantling of 75 HP Motor completely and heat varnishing motor winding and and reassembling motor complete incl replacement of worn out parts etc including testing, complete all as specified and as directed by Engineer-in-charge.

Dismantling of 50HP Motor completely and heat varnishing motor winding and and reassembling motor complete incl replacement of worn out parts etc including testing, complete all as specified and as directed by Engineer-in-charge.

Supply only gland packing for pump complete, complete all as specified and as directed by Engineer-in-charge.

Supply only grease for pump, complete all as specified and as directed by Engineer-in-charge.

S&F in repairs pressure gauge 100 mm size jelly filled, with suitable cock and raiser pipe with fitted to delivery side of pump set, complete all as specified and as directed by Engineer-in-charge.

Dismantaling the rolling shutter for servicing & greezing, complate and refixing in the position, complete all as specified and as directed by Engineer-in-charge.

S&F in repair Star Delta motor starter fully automatic in sheet metal enclosure 3 phase, 415V AC, 50Hz suitable for 75HP pump set, complete all as specified and as directed by Engineer-in-charge.

M&L for earthing complete including necessary excavation and earth work in any type of soil with galvanized steel earth plate electrode size 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 mtrs below ground level) with top edge of the earth plate not less than 1.5 mtr below normal ground level connected to galvanised earth strip 32x6 mm by means of bolts nuts check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 of MES SSR Part-1 connected to main switch board or main control board all as specified and testing on completion including provision of earth wire protected by galvanised iron 40 mm dia. light grade pipe and watering pipe shall be 20 mm bore light grade PCC pipt with pre cast RCC cover, charcoal/salt funnel etc. including taking down old unserviceable one complete all as specified and as directed by Engineer-in-charge. NOTE : (i)The concrete pit shall be PCC 1:3:6 tye C-1, 40 mm thick pre cast cover slab of RCC (1:2:4) type B-1 using 20 mm graded stone aggregate reinforced with 8 mm TMT bars @10 cm C/C on both sides with suitable cast iron handle shall be provided in liew of cast iron cover shown in electrical plate No.5 of MES SSR Part-1 (ii) Item includes the cost of 7.5 m GI pipe for protectio of earth strip. (iii) Item includes the cost of 7.5 mtr length earth strip.

S&F in replacement gear motor for chlorine dozing pump 230V 50HZ, complete all as specified and as directed by Engineer-in-charge. Make - Daclibac/ RMCO/ Milton Ray

S&F in replacement rotor assembly for chlorine dozing system with bearing bracket & tolerance rings, complete all as specified and as directed by Engineer-in-charge. Make- Daclibac/ RMCO/ Milton Ray

S&F in replacement single head feed rate control with shaft for chlorine dozing system with bearing bracket & tolerance rings, complete all as specified and as directed by Engineer-in-charge. Make- Daclibac/ RMCO/ Milton Ray

S&F in replacement pump head for chlorine dozing system with bearing bracket & tolerance rings, complete all as specified and as directed by Engineer-in-charge. Make- Daclibac/ RMCO/ Milton Ray

S&F in replacement pump tube with bearing bracket & tolerance rings, complete all as specified and as directed by Engineer-in-charge. Make- Daclibac/ RMCO/ Milton Ray Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender, from total amount of Schedule 'A'/BOQ.

Darjeeling Enterprises

Damdoo Bhutia

HIRA SINGH

M/S TSHERING BHUTIA

BIMAL BHATTRAI