REPLACEMENT OF BER WATER SUPPLY IRON REMOVAL PLANT (IRP) CHAMBER AT PH No. 05 AT AFS TEZPUR

Supply and fix Iron Removal unit/Water softening plant 10000 gallon /hour capacity with MS fabricated factory made and making necessary connection/fitting also suitable size of platform complete all as specified and including the followings: - (a) Pre filter- Vertical, Single Deck and Multigrade . (i) Shell IS:2062 MS fabricated factory made - 2300 mm dia x 1500 mm SOH. (ii)Thickness of Body, Dish end & bed plate - 10 mm x 12 mm x 12 mm. (iii) Frontal (face) pipe line - will be fabricate from 100 mm ERW pipe (Medium). (iv) Valves in frontal pipe line -Butter fly valves flange less finish-100mm (05 Nos) (v) Under bed plate system with strainer - Double nut type PVC strainer - 400 Nos. (vi) Pressure gauge - 02 Nos for raw water and filter water (vii) Filter media (Sand & Gravels) -156 Cft. (viii) MnO2 compound (catalytic media)-Generally not required for pre-filter.

(b) Iron Removal Filter - Vertical, Single Deck and Multigrade. (i) Shell IS: 2062 MS fabricated factor made-2500 mm dia x 1500 SOH. (ii) Thickness of Body, Dish end & bed plate - 10 mm x 12 mm x 12 mm. (iii) Frontal (face) pipe line - will be fabricate from 100 mm ERW pipe (Medium). (iv) Valves in frontal pipe line -Butter fly valves flange less finish-100mm (05 Nos) (v) Under bed plate system with strainer - Double nut type PVC strainer - 450 Nos. (vi) Pressure gauge - 02 Nos for raw water and filter water. (vii) Filter media (Sand & Gravels) -185 Cuft. (viii) MnO2 compound (catalytic media)-26 Cuft

(c) OXIDATION CHAMBER - Vertical, Single Deck (i) Shell IS:2062 MS fabricated factory made - 1000 mm dia x 1200 mm SOH. (ii) Thickness of Body, Dish end & bed plate - 6 mm x 8 mm x 8 mm. (iii) MnO2 - 21 Cuft. (d) Air Compressor- fitted with 5 HP motor, belt, belt guard etc - 01 Nos Model DH-10. (e) Chlorination system - Chlorine dosing pump model RC-11 cap: 06 Ltrs/04 kgs per and dosing tank model: CDS-100 fitted with lid, level gauge, sludge deposition facility and SS-316 agitator. Note 1. After completion of IRP work, testing shall be conducted by OEM and Engr-in-charge all as specified and directed and cost of the same shall be deemed included in the quoted unit rates. 2. Cost of dismantling the existing IRP Plant including connected items control valves/ERW Pipes/Air compressor/pumps and depositing the same to the E/M Store yard and cost of the same shall be deemed included in the quoted unit rates.

Supply and fix cast iron sluice valve class PN 1.6 long body type, with brass spindle both ends flanged with holes, ISI marked IS 14846-2000 including carbon steel nuts bolts & washers, rubber gaskets etc with CI wheel fixed to water mains of size 150mm bore complete all as specified and directed.

Supply and fix CI Non return valve flanged ends of class 1.6 PN with CI wheel, of size 100mm bore, including all fittings, i.e nuts & bolts washer and gasket, GI reducer 6"x4" all, complete all as specified and as directed.

Supply and fixing pressure gauge in pipe line 100 mm dia 0 to 14 Kg /Cm2 including all necessary fittings, complete all as specified and directed.

Material and labour for PCC 1:4:8 type D-2 using 40mm graded stone aggregate (for poles/stay assembly foundation) including necessary form work, complete all as specified and directed.

Material and labour plain cement concrete (1:2:4) type B-1 using 20 mm graded aggregate as in coping, benching and similar items including necessary form work etc, complete all as specified and directed.

Supply, laying and testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 16 Sqmm 4 Core, complete all as specified and directed.

Supply, install, testing and commissioning of monoblock pump set suitable for 415 volts, 3 phase, 50 Hz, having capacity 15 HP, suction and delivery outlet 4"x6", discharge capacity maximum 39 LPS, 50 metres head including connection with all fittings and angle iron base and PCC foundation as per manufacturer's instruction, complete all as specified and directed.