SPECIAL REPAIR/REPLACEMENT OF BER IRON REMOVAL PLANT ALONGWITH ALLIED PIPE LINE WORKS AT PH NO 03 (JCOS/OR MD ACCN AREA) AT VIJAY DURG UNDER GE(VD) KOLKATA

Supply and fix Iron Romoval Filter of capacity 10000 GPH of size 800 mm dia X 1000 mm long along with Oxidation Chamber of size 1600 mm X 1875 mm height with all neccessary fittng with following specification all as specified and directed by Engr-in-charge. Oxidation Chamber OC 1000 Flow rate in GPH/LPH 10000/ 45000 Required Flow rate in GPH/LPH 10000/45000 Quantity in nos. 1 no Dimension in Dia x Height (HOS) 800mm x 1000mm Shell Thickness in mm 5mm Dish Thickness in mm 6mm Material of Construction MSEP Type of Vessel Vertical Cylindrical Frontal Pipe work in mm 80 mm Design pressure upto 3.5 kg/cm2 Media Depth 400 kg Duration of daily backwash in minutes 20 min for each unit.

Multigrade Filter, INDION ® MGF 1600, Maximum Flow rate in GPH/LPH 10000/45000 Required Flow rate in GPH/LPH 10000/45000 Dimension in Dia x Height (HOS) 1600mm x 1875mm Quantity in nos. 1 no Shell Thickness in mm 5 Dish Thickness in mm 6 Material of Construction MSEP Type of Vessel Vertical, Cylindrical Frontal Pipe work in mm 100 mm Pipework Mild Steel IS 1239 Medium Duty Design pressure upto 3.5 kg/cm2 Media quantity-Filtration media Pebbles-1’-3/4” Pebbles-3/4”-1/2” Coarse Silex-1/2”-1/4” Coarse Silex-1/4”-1/10” = 3150 Kgs Mixture of Graded Sand-6-4 & 16-32 Media Depth -915 mm Valves type Butterfly Valve Butterfly Valves make Cast Iron Butterfly Valves Quantity in Nos 5 Diaphragm Valve in Nos 1

Butterfly Valves made of Cast Iron Painting Inside Black Bituminous Food Grade Inside Paint DF60-80 Outside, 2 Coat red oxide Primer-20DFT per Coat & 2 Coat Synthetic Enamel Epoxy Paint-20-30per Coat Duration of daily backwash in minutes 20 min for each unit

Softener INDION ® S Flow rate in GPH/LPH 45000 Required Flow rate in GPH/LPH 45000 Dimension in Dia x Height (HOS) 1400mm x 2500 mm Quantity in nos. 1 no Shell Thickness in mm 5 Dish Thickness in mm 6 Material of Construction MSEP Type of Vessel Vertical, Cylindrical Frontal Pipe work in mm 150 mm Pipework Mild Steel IS 1239 Medium Duty Resin Quantity 2300 litres Design pressure upto 3.5 kg/cm2 Media Depth 915 mm Valves type Butterfly Valve Butterfly Valves make Cast Iron Butterfly Valves Quantity in Nos 5 Diaphragm Valve in Nos 1 Butterfly Valves make Cast Iron Painting Inside Black Bituminous Food Grade Inside Paint DFT 60-80 Outside 2 Coat red oxide Primer-20DFT per Coat & 2 Coat Synthetic Enamel Epoxy Paint-20-30per Coat Duration of daily backwash in minutes 20 min for each unit

M&L for structural steel framed work such as grills, gratings etc with ends of bars shouldered, welded or riveted or forced into spikes, framed guard bars, ladders, framed balusters, walk ways, railings, frame work of water tanks and similar work for pressed steel OH tank, steel sedimentation tank, steel gravity filter, steel clear water sump, steel oxidation chamber, Valve chamber etc all as specified and directed.

M&L for cement concrete in floors and pavement 75mm thick, type C-2, 1:3:6 (40mm graded aggregate)as in plinth protection complete all as specified and directed.

M&L for cement concrete floors and pavement type D2 1:4:8(40 MM Graded) 75 mm thick complete.all as specified and directed.

M&L for brickwork with subclass ‘B’ bricks, straight or curved for half b/w on plan to any radius built in CM 1:4 complete.all as specified and directed.

S&F of MS ERW Pipe of dia 80 mm along with all scokets nut volts etc all as specified and directed.

S&F of MS ERW Pipe of dia 100 mm along with all scokets nut volts etc all as specified and directed.