running maintenance fordtws attached to barjala sectionwithin the jurisdiction of dws division agartala-1, agartala during the year 2023-24 / providing and fitting fixing ofsluice valves, non return valves, electrical equipments, different capacity pump-motor sets and re-winding of different capacities burnt motor underdws sub-division no.iii, kunjaban, agartala-providing and fixing c.isluice valves ( with cap ) completewith bolts, nuts, rubber incertion etc. ( the tail pieces if required will be paid separately ) as percpwd specification and direction of the engineer - in - charge. 2 ii ) 100 mm dia. pn- 1.6 3 ii ) 150 mm dia. pn- 1.6 4 providing and fixing c.i. non-return valve of approved quality aspercpwd specification and direction of the engineer - in - charge. ( i ) 80mm nominal bore 5 ii ) 100 mm nominal bore 6 iii ) 150 mm nominal bore 7 providing and fitting fixing of 3 pole power contactors type ml ( standard coil voltageac-3 duty, 415 v, 50 hz, motor rating ac-3 duty, 415 v, 50 hz, 3ph ) of l&t makeas per direction of engineer - in - charge. 8 a ) type ml2 ac3 rating ( a ) 32, ac1 rating ( a ) 40, aux contacts 2no+2nc cat no.ss90701 9 supplying and fitting fixing of 3 pole power contactorsof ml3 type, 40 amps rating, cat no.ss90721 suitable for 3 ph fully automatic star delta starter of l&t makeas per direction of the engineer - in - charge. 10 providing and fitting fixing of fully automatic star delta type motor starter ( 3 ph, 50 hz, 415v ) in steel sheet enclosures with contractors and timer etc. complete suitable for submersible pump l&t, bch , abb make as per specification and direction of the engineer - in - charge. 11 ii ) 35 hp / 26 kw relay range within 20-32 +10% 12 50 hp / 37 kw relay range within 28-42 + 10% 13 providing and fitting fixing steel sheet enclosed switch fuse unit ( suitable for din fuses ) , triple pole with neutral link ( tpn ) , 415 / 500 volt, l & t / havells / bch make etc. complete as per specification and direction of the engineer-in-charge. 14 ( ii ) 100 amps 15 rewinding of motor suitable v.t. pumps by complete dismantling in / c providing & rewinding with super enamelled copper conductor ( as per is : 13730 part-3 ) conductor & all necessary spare parts and reassembling the same including servicing of rotor & necessary trial run as per specification and direction of the engineer-in-charge. 16 ii ) 25 - 30 hp 17 iv ) 50-65 hp 18 v ) 75 - 90hp 19 repair and maintenance of 20 / 22.5hpmotor suitable for 10000 gph capacity submersible pump set by complete dismantling in / c providing & fitting fixing of pvc ( is: 8783-1978 ) insulated electro grade copper ( is: 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same in / c servicing of rotor & necessary trial run as per specification and direction of the engineer-in-charge. 20 repair and maintenance of 10 hp / 12.5 hp motor suitable for 5000 gph capacity submersible pumpset by complete dismantling in / c providing & fitting fixing of pvc ( is : 8783-1978 ) insulated electro grade copper ( is: 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same in / c servicing of rotor & necessary trial run as per specification and direction of the engineer- in -charge. 21 repair and maintenance of 15 hp / 17.5 hp motor suitable for 7500 gph capacity submersible pumpset by complete dismantling in / c providing & fitting fixing of pvc ( is : 8783-1978 ) insulated electro grade copper ( is: 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same in / c servicing of rotor & necessary trial run as per specification and direction of the engineer- in -charge. 22 repair and maintenance of 30 hp motor suitable for 15, 000 gph capacity submersible pumpset by complete dismantling in / c providing & fitting fixing of pvc ( is : 8783-1978 ) insulated electro grade copper ( is: 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same in / c servicing of rotor & necessary trial run as per specification and direction of the engineer- in -charge. 23 repair and maintenance of 35 / 40 hp motor suitable for 20, 000 gph capacity submersible pumpset by complete dismantling in / c providing & fitting fixing of pvc ( is : 8783-1978 ) insulated electro grade copper ( is: 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same in / c servicing of rotor & necessary trial run as per specification and direction of the engineer- in -charge. 24 repair and maintenance of submessible motor suitable for submerssible pumpset by complete dismantling in / c providing & fitting fixing of pvc ( is : 8783-1978 ) insulated electrograde copper ( is : 613-1984 ) conductor winding in stator & all necessary spare parts and reassembling the same including servicing of rotor & necessary trial run as per specification and direction of the engineer-in-charge. 25 ii ) 1.0 hp motor suitable for 1000 gph capacity submerssible pumpset 26 iv ) 2.0 hp motor suitable for 2000 gph capacity submerssible pumpset 27 rewinding of horizontal motor suitable for centrifugal pumps by complete dismantling in / c providing & rewinding with super enamelled copper conductor ( as per is : 13730 part-3 ) conductor & all necessary spare parts and eassembling the same including servicing of rotor & necessary trial run as per specification and direction of the engineer-in-charge. 28 iii ) 3.0-5.0 hp 29 iv ) 7.5 - 10 hp 30 providing and instsllation of 10, 000 gph x 76 mtrs.head water lubricated vertical submersible pumpkirloskar / wpl / ksb / duke / texmo make ) . with maximum 8 ( eight ) stages coupled with required wet and non - over loading submersible motor suitable for 340=440 volts, 3 phase, 50 hz, ac supply and star delta method of starting as per direction of the engineer in charge. 31 providing and instsllation of 7500 gph x 76 mtrs.head water lubricated vertical submersible pump ( kirloskar / wpl / ksb / duke / texmo make ) . with maximum 7 ( seven ) stages coupled with required wet and non - over loading submersible motor suitable for 340-440 volts, 3 phase, 50 hz, ac supply and star delta method of starting as per direction of the engineer in charge. 32 providing and instsllation of 5000 gph x 76 mtrs.head water lubricated vertical submersible pumpkirloskar / wpl / ksb / duke / texmo make ) . with maximum 8 ( eight ) stages coupled with required wet and non - over loading submersible motor suitable for 340=440 volts, 3 phase, 50 hz, ac supply and star delta method of starting as per direction of the engineer in charge.