REPAIR MAINTENANCE OF RO PLANT CHLORINATION AND MISC WORK AT AF STN 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 items 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 in plant, 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:- (a) M/s Sree Rayalaseema Hi-Strength Hypo Ltd. (b) Potter & Watts Corporation or equivalent as approved by GE.

Description all as per Srl Item No.6.00 here-in-before 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 all as specified and as directed. Make:- Castrol/ Motul or equivalent make as approved by GE.

S&F in repairs Water Testing Solution 500 ml bottle complete all as specified and as directed. Make:- FINAR or equivalent make as approved by GE.

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 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.

Servicing of PLC by removing from panel, replacement for chip set, resoldering, 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 or equivalent make as approved by GE.

Supply and fix in repairs, Relay suitable for Master/ slave Panel 4 C/o 240 V complete all as specified and as directed.

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, Water Level Controller (circuit board) (10 level) complete all as specified and as directed.

Supply and fix in repairs, Water Level Controller board (circuit board) (5 level) complete all as specified and as directed.

Supply and fix in repairs, Water Level Controller board (circuit board) (2 level) complete all as specified and as directed.

Supply and fix in repairs, Push Button with LED Indicator 240V, AC, of Colour Red/ Yellow/ Green into master/ slave panel complete all as specified and as directed. Make:- ESBEE/ Telemacnique or equivalent make as approved by GE.

Supply and fix in repairs, SMPS, 24 V, DC, 2.4 Amp 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 or equivalent make as approved by GE. . .

Supply and fix in repairs, Electric motor suitable for actuator for 80mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork or equivalent make as approved by GE. . .

Supply and fix in repairs Electric motor suitable for actuator for 100mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork or equivalent make as approved by GE.

Supply and fix in repairs, Electric motor suitable for actuator for 150mm dia butterfly valve complete all as specified and as directed. Make:- Ritetork or equivalent make as approved by GE.

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

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

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

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.

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

Supply and fix in repairs, 5 pair, 0.5 sqmm armoured communication copper cable complete all as specified and as directed. Make:- Polycab/ FSC or equivalent make as approved by GE.

Supply and fix in repairs, 6 core, 1.5 sqmm, PVC sheathed insulated copper armoured cable complete all as specified and as directed. Make:- Polycab/ FSC or equivalent make as approved by GE.

Supply and fix in repairs, 4 core, 1.5 sqmm, PVC sheathed insulated copper armoured cable complete all as specified and as directed. Make:- Polycab/ FSC or equivalent make as approved by GE.

Supply and fix in repairs, 2 core, 1.5 sqmm armoured cable complete all as specified and as directed. Make:- Polycab/ FSC or equivalent make as approved by GE. Note for Item No 45 to 48:- Quoted rate shall deemed to be included the cost of taking up of old U/S cable, cable covers etc.

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, patch cable of length 2.0 metres for connecting PLC to GSM Modem of suitable size required along with connector socket (i.e. for PLC & GSM modem) complete all as specified and as directed.

Supply, install and commissioning, in repair, of PLC Modern Interface including all connected works 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.

Description all as per Srl item No. 52.00 here-in-before but 150mm dia butterfly valve.

Description all as per Srl item No. 52.00 here-in-before but 100mm dia butterfly valve.

Description all as per Srl item No. 52.00 here-in-before but 80mm dia butterfly valve.

Description all as per Srl item No. 52.00 here-in-before but 50mm dia butterfly valve.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 mtr deep in soft/ loose soil for taking out pipe & laying of pipe & getting out for diversion of pipe line complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering & well ramming in layers not exceeding 25 cm thick complete all as specified and as directed.

Removal of excavated soil to a distance not exceeding 50m and depositing where directed as a level not exceeding 1.5 mtr above the starting point complete all as specified and as directed.

Dewatering the existing OH reservoir, 18 metres staging of capacity 50000 gallons 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.

Description all as per Srl item No. 60.00 here-in-before but OH reservoir, 18 metres staging of capacity 40000 gallons.

Description all as per Srl item No. 60.00 here-in-before but OH reservoir, 15 metres staging of capacity 10000 gallons. Note for Item Nos. 60 to 62:- 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 UG sump 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 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 respective item of supply only here-in-after.

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

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

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

Supply only in replacement delivery chamber as per existing make and size.

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

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

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

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

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

Dismantling only multistage in-line 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 respective item of supply only here-in-after.

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

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

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

Supply only in replacement delivery chamber as per existing make and size.

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

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

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

Supply only in replacement 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 complete all as specified and directed.

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 directed.

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

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

Supplying & fixing 40mm bore gun metal gate valves with iron wheel head,screwed both ends for iron pipe, ISI Marked, as per IS: 778 of following sizes including taking out unserviceable gate valves complete all as specified and directed.

Supplying & fixing 50mm bore gun metal gate valves with iron wheel head,screwed both ends for iron pipe, ISI Marked, as per IS: 778 of following sizes including taking out unserviceable gate valves complete all as specified and directed.

Krishna Engineering

AARTI ENTERPRISES