REPAIR MAINTENANCE OF RO PLANTS AUTOMATION SYSTEM CHLORINATION PLANTS AND MISC WORKS AT AF STN NALIYA UNDER GE AF NALIYA

Amount

Dismantling the components of Reverse Osmosis Plant and checking the serviceability of Plant, including taking out rubber bushes, fittings, low / high pressure motor pumps and re-fixing the same, after necessary repairs and replacement of unserviceable parts complete all as specified and as directed. Note:- Replacement of defective parts shall be measured and paid separately under relevant items.

Supply and fix in repairs, Jumbo platred filter cartride, poly propyline of 10 micron 20", complete all as specified and as directed.

Supply and fix in repairs, carbon filter 20", suitable for RO plant, complete all as specified and as directed.

Cleaning of membrane filter with citric acid and cleaning, washing by the help of high pressure water pump complete all as specified and as directed.

Supply and fix in repairs, PVC pressure switch 40 mm dia, model Hd-010-WP 0.5 to 10 HP Kg/sqcm complete all as specified and as directed.

Supply only Calcium hypochlorite, white to white free Granular Chlorination chemical, 60%-70% available Chlorine content in 45 kg packing complete all as specified and as directed. Make:- M/s Sree Rayalaseema Hi-Strength Hypo Ltd., Potter & Watts Corporation/Declibac / Any reputed make as approved by Accepting Officer

All as per item No. 6 here -in-above but 90 to 99% available Chlorine content.

Supply only Alum crystal super quality all as specified and as directed.

Cleaning of PVC water tank of capacity 10000 litres, using bleaching powder, scrubbing of inner surface of tanks by means of wire brush for removing all scale / fungus formed and other foreign particles and washing complete all as specified and as directed. Note:- Unit rate quoted shall include the cost of dismantling and refixing all fitting / fixtures inside and out side tank for effective cleaning.

Supply and fix in repairs, multi port valve of 5.0 kg pressure rating for RO plant complete all as specified and as directed.

Supply and fix in repair, membrane filter, of model 80/40 two core line, as existing size and capacity of RO plant including testing and commissioning complete all as specified and as directed.

Supply and fix in repair, membrane filter, of model 40/40 two core line, as existing size and capacity of RO plant including testing and commissioning complete all as specified and as directed.

M&L in replacement, sand of dual media of grain size suitable for Reverse Osmosis complete all as specified and as directed.

M&L in replacement, activated carbon of suitable Iodine number for Reverse Osmosis complete all as specified and as directed.

Supply only greasing for bearing of centrifugal Pumps complete all as specified and as directed. Make:- Castrol / Motul / Any reputed make as approved by Accepting Officer

S&F in repairs Water Testing Solution 500 ml bottle complete all as specified and as directed. Make:- FINAR / Any reputed make as approved by Accepting Officer

Servicing of water level sensor i.e. removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Servicing of limit switch by removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Servicing of motorised butterfly valve of size 50 mm / 80 mm i.e. removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Servicing of motorised butterfly valve of size 100mm /150 mm / 200 mm i.e. removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Servicing of actuator of size 150 mm / 200 mm by removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Servicing of actuator of size 50mm / 80mm / 100mm by removing, cleaning, greasing, checking for wear and tear, refixing, testing, installing and commissioning complete all as specified and as directed.

Supply and fix in repairs, Single Phasing Preventer complete all as specified and as directed. Make:- Model VSP D2 of Minilec / Any reputed make as approved by Accepting Officer

Supply and fix in repairs, Indicator lamp of 24 V, DC, of colour Red / Yellow / Green complete all as specified and as directed.

Supply and fix in repairs, electric motor suitable for actuator for 50mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork / Any reputed make as approved by Accepting Officer . .

Supply and fix in repairs, Electric motor suitable for actuator for 80mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork / Any reputed make as approved by Accepting Officer . .

Supply and fix in repairs Electric motor suitable for actuator for 100mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork / Any reputed make as approved by Accepting Officer

Supply and fix in repairs, Electric motor suitable for actuator for 150mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork / Any reputed make as approved by Accepting Officer

Supply and fix in repairs, Electric motor suitable for actuator for 200mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork / Any reputed make as approved by Accepting Officer

Supply and fix in repairs, Hand Wheel for Actuator suitable for 50mm / 80mm / 100mm butterfly valve complete all as specified and as directed.

Supply and fix in repairs, Hand Wheel for Actuator suitable for 150mm / 200mm butterfly valve complete all as specified and as directed.

Supply and fix in repairs, ball bearing for Actuator suitable for 50mm / 80mm / 100mm / 150mm / 200mm butterfly valve complete all as specified and as directed.

Supply and fix in repairs, thrust bearing for Actuator suitable for 50mm / 80mm / 100mm / 150mm / 200mm butterfly valve complete all as specified and as directed.

S&F in repair, SS Adaptor suitable for fixing on butterfly valve for mounting actuator of size 100mm / 150mm complete all as specified and as directed.

S&F in repairs, butterfly valve 200 mm dia, designed for line pressure 6 kg/sqcm, operating angle 90 degrees, disc material CI with nylon coating conforming to IS:13095 complete all as specified and as directed.

All as per Item No. 35 here in above but 150mm dia butterfly valve.

All as per Item No. 35 here in above but 100mm dia butterfly valve.

All as per Item No. 35 here in above but 80mm dia butterfly valve.

All as per Item No. 35 here in above but 50mm dia butterfly valve.

Dewatering the existing OH reservoir of 50000 gallons capacity 18 meter staging and cleaning the internal surface of sump for removing scales, fungus, mud and other foreign material, scrubbing with water using wire brush and watering the surfaces with mixture of bleaching powder and water, finally washing with fresh water and treating with one coat of lime wash to internal wall and bottom surfaces etc. complete for one time, writing in synthetic enamel paint in block capital letters as cleaned on (date) and due (date) etc, height not less than 5.0 cm complete at visible place complete all as specified and as directed.

All as per Item No. 40 above but OH reservoir, 18 metres staging of capacity 40000 gallons.

All as per Item No. 40 above but OH reservoir, 15 metres staging of capacity 10000 gallons. Note for Item Nos 40 to 42 . :- The unit rate quoted shall be deemed to include for:- (a) All the inlet / overflow / out let connection shall be cleaned and made rust free and any leakages in joints shall be made good. (b) The water available in the OH Reservoir shall be bailed out at the nearest open drain available. (c) 250 gram of bleaching powder to be used for every 10 litres of fresh water. (d) Any damage caused during cleaning, of the existing assets / parts shall be made good by the contractor at his own cost. (e) The quoted rate shall be deemed for include for scaffolding temporary arrangement of ladders etc. for these purposes and safety measure for workers for working and while working shall be provided by contractor.

Dismantling only multistage in-line high pressure centrifugal pump of 4.1 KW, Head-180 Meter (max) & Q - 0.5 to 9.5 Cum/Hr from base and checking the serviceability of pump and its components such as Impeller set, shaft, chamber, bush etc. and refixing the same after necessary repairs and replacement of unserviceable parts complete all as specified and as directed. Note:- Replacement of defective items shall be measured and paid separately under following items:-

Supply only Impeller all as per existing make and size.

Supply only regular chamber all as per existing make and size.

Supply only suction chamber all as per existing make and size.

Supply only delivery chamber as per existing make and size.

Supply only carbide chamber all as per existing make and size.

Supply only carbide shaft bush all as per existing make and size.

Supply only mechanical seal all as per existing make and size.

Supply only pump shaft all as per existing make and size.

Supply only casing pipe all as per existing make and size.

Dismantling only multistage in-line low pressure centrifugal pump of 2.1 KW, from base and checking the serviceability of pump and its components such as Impeller set, shaft, chamber, bush etc. and refixing the same after necessary repairs and replacement of unserviceable parts complete all as specified and as directed. Note:- Replacement of defective items shall be measured and paid separately under relevant items

Supply only of Impeller all as per existing make and size.

Supply only regular chamber all as per existing make and size.

Supply only suction chamber all as per existing make and size.

Supply only delivery chamber as per existing make and size.

Supply only carbide chamber all as per existing make and size.

Supply only carbide shaft bush all as per existing make and size.

Supply only mechanical seal all as per existing make and size.

Supply only pump shaft all as per existing make and size.

Supply only Anti scalant suitable for Reverse Osmosis to control scale formation due to calcium carbonate, calcium sulphate, silica etc. complete all as specified and as directed.

Supply and fix Cast Iron check valve of 25 mm dia all as specified and directed by Engr-in-Charge

Supply and fix pin made out of S/S steel as per existing sample, suitable for 80mm /100mm /150mm / 200 mm butterfly valve of Scada System complete all as specified and as directed at site.

Supply and fix flexible pipe of 40 mm bore of branded make suitable for RO plant waste water, complete all as specified and directed.

Supplying & fixing 25 mm bore gun metal gate valves with iron wheel head,screwed both ends for iron pipe, ISI Marked, as per IS: 778 including taking out unserviceable gate valves complete all as specified and as directed.

All as per Item No. 66 abvoe but of size 40 mm bore

All as per Item No. 66 abvoe but of size 50 mm bore

Supply and fix in repair 20 mm bore UPVC pipes with UPVC fittings of stadard qualities, for RO plants high / low pressure motor sunction/delivery pipes line etc of existing make complete as specified and as directed.

All as per Item No. 69 abvoe but of size 25 mm bore

All as per Item No. 69 abvoe but of size 40 mm bore

All as per Item No. 69 abvoe but of size 50 mm bore

Material and labour for MS works Fe 290-0 or E 165 of any sizes of angles iron / flat iron works for, Staircase of over head reserviors, Motor and Pump foundation base frame, and UG sump cover base frame or any other type of works required complete all as specified and as directed.

Material and labour for removing old paint from RO Plants filters, sunction / delivery lines etc by paint removers or burning off by blow lamps and cleaning with scrapers, any number of coats, any width or girth from the existing surface of any size/shape, complete all as specified and directed.

Material and labour for painting to RO Plant filters, sunction / delivery lines etc by using spray gun with one coat of red oxide and two coat of synthetic enamel paints of any size/shape, using any type of colour required at site or as per exisitng and directed.

Supply and fixing in repair copper made bottle neck type thimble suitable for 16 Sqmm cable complete all as specified and as directed.

Supply and fixing in repair copper made bottle neck type lux suitable for 16 Sqmm cable complete all as specified and as directed.

AARTI ENTERPRISES