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| 1 | Repair of Hot water re-circulation system on the Terrace of Main OT complex : Supply, Installation, testing & commissioning of skid mounted re-circulation pump system, complete system shall be assembled by the pump manufactured company which shall be suitable for supply of Hot water temperature up to 90deg Celsius. The all pumps shall be provided with mechanical seal and aligned properly as required. The pump motor shall be suitable for 415 +/- 10% volts, 50 cycles, 3-phase power supply the quoted price shall include cost of thermal insulation and cladding of water pumps, Electrical Control panels and cabling of required rating/load, vibration insulation pads, PCC base with MS base frame and shade to protect the system from environmental changes wherever required. comprising of the following:- |
| 2 | Control Panel based upon temperature settings for Pump set consists of 02Nos (1 Working + 1Standbye) pumps, which shall be for 3-phase continue cyclic operation of pumps on regular interval with the help of timer, contactors, relay, over & under voltage protection, Both pump running alternately and simultaneously. |
| 3 | Horizontal multistage centrifugal HOT WATER RECIRCULATION Pump set consists of 02Nos (1 Working + 1Standbye) pumps with stainless steel SS-304 grade casing & impellor mounted over a shaft of SS-316 grade. The suction and discharge casings shall be made up of GJL 250 cast iron which is connected to TEFC ventilated induction motor casing. The capacity of pump shall be 33 LPM, 27m Head and 2900 rpm. |
| 4 | Providing and fixing of XLPE 4core 2.5mm copper cable with GI wire armoured |
| 5 | Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc. |
| 6 | 25 mm dia nominal bore |
| 7 | Supply, Installation, testing and commissioning of Heavy Duty Ball/ Globe including cutting holes in walls & making good, testing complete as per specifications to the entire satisfaction of the Engineer-in-charge. |
| 8 | 25mm (1 inches) dia |
| 9 | Providing and fixing of 50mm thick LRB padded insulation of 100kg/cum density with chicken mesh complete in all respect. As per following sizes of pipe line. |
| 10 | 25mm dia |
| 11 | Providing and fixing of Aluminium cladding with 24 gauge aluminium sheet overlap with 50mm LRB and fixed with self tapping recessed screws complete in all respect. As per following sizes of pipe line. |
| 12 | 25mm dia |
| 13 | Repair of 3 dome by providing turbo ventilators at Central Boiler house : Supply and Installation of Heavy Duty Turbo Ventilator Fan of size 22 Inches fabricated out of Stainless Steel alongwith Polycarbonate Base Plate so as to enable it to fix with the help of nut-bolts on the roof top complete in all respect to the entire satisfaction of the engineer-in-charge. |
| 14 | Special repair of Horizontal multistage centrifugal HOT WATER supply Pump of capacity 0.55 kwatt or 0.75Hp, 400LPM, 32m Head and 2800 rpm by replacement of winding of induction motor with superior quality SE copper wire including replacement of original mechanical seal, bearings, paper seals, o-rings, Terminal plate, insulation and varnishing including descaling & servicing of pump complete in all respect to the entire satisfaction of the Engineer-in-charge. |
| 15 | Supply, Installation, testing & commissioning of main water supply Pipe line with G.I. heavy class pipe 50 mm dia. |
| 16 | Supply, Installation, testing & commissioning of main water supply line Gun metal heavy duty Gate Valve 50mm dia. |
