GE I R AND D/CHD-65/2025-26 REPAIR/MAINT OF EXTERNAL WATER SUPPLY AT DIHAR LEH

Amount

Excavation in trenches n.exc 1.5 m wide and 1.5 m depth for laying pipes in soft/loose soil and getting out complete all as specified and directed.

Returning, filling in soil incl spreading, levelling, watering and well ramming in layers n.exc 25cm complete all as specified and directed.

Removal of surplus soil to a distance n. exc 50 m and depositing where as directed at level not exc 1.5 m above the starting point complete all as specified and directed.

Taking down/taking out of size 100 mm dia pipe old unserviceable MS pipes cutting including insulation etc from walls / cellings / floors / trenches complete all as specified and directed.

All as per serial item no 4 above but size 80 mm dia pipe -ditto-

All as per serial item no 4 above but size 50 mm dia pipe -ditto-

All as per serial item no 4 above but size 40 mm dia pipe -ditto-

All as per serial item no 4 above but size 25 mm dia pipe -ditto-

All as per serial item no 4 above but size 20 mm dia pipe -ditto-

All as per serial item no 4 above but size 15 mm dia pipe -ditto-

Relaying/refixing including cleaning of serviceable pipe and fixing in same position with connecting fitting of 100 mm dia pipe complete all as specified and directed.

All as per serial item no 11 above but size 80 mm dia -ditto-

All as per serial item no 11 above but size 50 mm dia -ditto-

All as per serial item no 11 above but size 40 mm dia -ditto-

All as per serial item no 11 above but size 25 mm dia -ditto-

All as per serial item no 11 above but size 20 mm dia -ditto-

All as per serial item no 11 above but size 15 mm dia- ditto-

Supply and fixing for GI tubing 100 mm bore, 'medium grade', galvanised, with all fitting; laid in trenches/on wall etc. complete all as specified and directed.

All as per serial item no. 18 above but size 80 mm dia -ditto-

All as per serial item no. 18 above but size 50mm dia -ditto-

All as per serial item no. 18 above but size 40 mm dia -ditto-

All as per serial item no. 18 above but size 25 mm dia -ditto-

All as per serial item no. 18 above but size 20 mm dia -ditto-

All as per serial item no. 18 above but size 15 mm dia -ditto-

Supply and fixing for gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe size 15 mm dia complete including taking down of old gate valve complete all as specified and directed.

All as per serial item no 25 above but size 20 mm dia -ditto-

All as per serial item no 25 above but size 25 mm dia -ditto-

All as per serial item no 25 above but size 40 mm dia -ditto-

All as per serial item no 25 above but size 50 mm dia -ditto-

Supply and fixing in replacement of sluice valve flanged and drilled with stainless steel spindle, iron wheel ISI marked with nuts, bolts & washers and gasket heavy duty PN 1.6 of 80 mm sizes complete all as specified and directed.

All as per serial item no 30 above but size 100 mm dia -ditto-

Supply and fixing in replacement of foot valve of dia 65 mm, PVC complete all as specified and directed.

Supply and fixing in replacement of foot Valve of dia 50 mm, PVC complete all as specified and directed.

Repair /overhauling of centrifugal mono block pump set capacity 5 HP including removing the pump from site and dismantling the complete including replacement of ball bearing, bushes, oil seal, gland packing, cleaning, oiling / greasing properly, replacement of 02 nos CI impeller of suitable size for the pump set and reassembling commissioning & testing complete all as specified and directed.

All as per serial item no 34 above but capacity 10 HP pump -ditto-

All as per serial item no 34 above but capacity 20 HP pump -dito-

Material and labour for dismantling the mono block motor 20 HP carrying out rewinding with super enamelled copper winding wire of existing adequate size and gauge incl all insulating materials such as insulating paper insulating sleeves, insulating varnish and drying the copper winding after varnishing with blower or heater incl soldering all internal connection including reassembling the same and testing complete all as specified and directed. Note: - Old material out properly of contractor and schedule of credit shall be recovered from the contractor.

All as per serial item no 37 above but 10 HP -ditto-

All as per serial item no 37 above but 5 HP -ditto-

Material and labour for opening of submersible motor of 5 HP capacity and taking out the rotor form the body and cutting the burnt coils/winding, cleaning the stator slots properly by using cleaning material and re-winding/reassembling the same including replacement of gun metal bushes, sockets etc complete all as specified and directed.

Material and labour for dismantling of all necessary electric connection from the panel for taking out existing burnt/damaged 5 HP capacity submersible pump and motor from bore well of any depth by means of mechanical hoist/chain pully block, opening the nuts bolts from the column pipes stacking the pipe in pump house for repair to pump and lowering another submersible pump, column pipes in bore well and connected with suitable size nuts, bolts, washers & rubber gasket etc complete all as specified and directed. Note: - Repair to burnt pump shall be measured under respective item of schedule separately.

Supply and fixing in replacement of 3 Phase contactor with 1 NO+ 1NC, 415 Volt 10-amp auxiliary supply 230V spare / accessories suitable for DOL starter of three phase 5 HP motor complete all as specified and directed.

All as per serial item no 42 above but over load relay suitable for 5 HP, Capacity 6A -10A -ditto-

All as per serial item no 42 above but single-phase preventer -ditto-

All as per serial item no 42 above but push button for start & stop -ditto-

All as per serial item no 42 above but indicator for stop & run -ditto-

All as per serial item no 42 above but connector bakelite 12 way -ditto-

Supply and fixing in replacement of 3 phase contactor with 2NO+2NC, 415 Volt 32A auxiliary supply 230V spare/accessories suitable for star - delta starter of three phase mono block motor of capacity 20 HP/10 HP complete all as specified and directed.

All as per serial item no 48 above but over load relay suitable for 10 HP, capacity 14A -23A -ditto-

All as per serial item no 48 above but over load relay suitable for 20 HP, capacity 20A -33A -ditto-

All as per serial item no 48 above but star -delta timer -ditto-

All as per serial item no 48 above but single-phase preventer -ditto-

All as per serial item no 48 above but push button for start & stop -ditto-

All as per serial item no 48 above but indicator for stop & run -ditto-

All as per serial item no 48 above but connector bakelite 12 way -ditto-

Material and labour for replacement of flat submersible 3 core, stranded copper conductor, PVC sheathed cable, 1100 volts grade as per IS-694 of size 2.5 sqmm, complete all as specified and directed.

Material and labour for painting of motor & pump for removing the existing deteriorated paint by scrapping the complete body, filling cavities with filter spray painting with synthetic enamelled paint two coats over a coat of red oxide zinc crome and marking of SM/MES No. with black paint for mono block pump set of 20 complete all as specified and directed.

All as per serial item no 57 above but for 10 HP -ditto-

All as per serial item no 57 above but for 5 HP -ditto-

Material and labour for painting of GI suction pipes, delivery pipes after removing the existing deteriorated paint by scrapping and painting with synthetic enamelled paint two coats over a coat of red oxide zinc chrome primes in old ARU pump house and JCO's Mess pump house complete all as specified and directed.

Desludging / desilting of overhead reservoir of capacity 32000 ltrs capacity including removing the sludge and depositing to a distance exc 50 m above the starting point, removing all scale, dirt, algaes and other growths from the floor, roof and mouth of circulating pipes by rubbing with the wire brushes and high pressure cleaning method with rotary sets, sucking out the dirty water by vacuum cleaners, and disinfecting the reservoir with approved chemical solution using at the rate of 0.20 Kg/sqm for making surface bacteria free and finally cleaning with fresh water to the satisfaction of Engr-in-charge including painting for MS plates, manhole covers, suction pipe, rugs etc with anti-corrosive paint and writing outside the tank as 'Tank Cleaned on ____ and Capacity ________ on black painted surface complete all as specified and directed.

Desludging / desilting of underground sedimentation reservoir of 100000 ltrs capacity including removing the sludge and depositing to a distance exc 50 m above the starting point, cleaning walls by wire brush and disinfecting the reservoir with approved chemical solution using at the rate of 0.20 Kg/Sqm for making surface bacteria free and finally cleaning with fresh water to the satisfaction of Engr-in-charge including painting for MS plates, manhole covers, suction pipe, rugs etc with anti-corrosive paint and writing outside the tank as 'Tank Cleaned on ____ and Capacity ________ on black painted surface complete all as specified and directed.

Material and labour for testing of portable water sample from 5 different borewell from FSSAI notified, NABL Accredited, ISO 9001:2015, ISO 14001, and ISO 45001 certified food, water, and air testing laboratory Indian standard IS 10500: 2012 (including revised editions) complete all as specified and directed.

Supply and fixing in repair impeller of monoblock pump of capacity 10 HP complete all as specified and directed

Supply and fixing in repair impeller of monoblock pump of capacity 7.5 HP complete all as specified and directed

Supply only calcium hypo chlorite having strength 65% to 70% granular /liquid form in underground sump/ overhead water reservoir complete all as specified and directed

Supply, fixing and testing in replacement of submersible 3 phase direct online starter for capacity 5 HP complete all as specified and directed

Supply, fixing and testing in replacement of submersible 3 phase direct online starter for capacity 7.5 HP complete all as specified and directed

Supply, fixing and testing in replacement of submersible 3 phase dircet online starter for capacity 5 HP complete all as specified and directed

Supply, fixing and testing in replacement of submersible 3 phase direct online starter for capacity 20 HP complete all as specified and directed

Supply and fixing in cast iron non return valve of size 50 mm with gun metal seat PN 1.6 complete all as specified and directed

Supply and fixing for PPR pipe 25 mm bore, with all fitting; on wall/surface etc complete all as specified and directed.

M/S HIGHLAND ENGINEERING (BID ID -3377212)

national engineering (BID ID -3377051)

M/S stanzin tundup (BID ID -3378509)

RND ENGINEERS & CONTRACTORS (BID ID -3377482)