National Environmental Engineering Research Institute Tender

Valves of size 100-150 mm Dia. at locations For Suction,At Delivery, Inlet and Out let,Backwash,Drain,Inlet to Pool --- All valves for above lacations Confirming to IS 13095 , PN 16,ISI mark, having cast iron body lining black Nitrile/Neoprene, csat iron nylon coated disk of GM IS318, SS shaft IS1570, with nut bolts Gaskets etc. Complete of make L & T or equi. as approved by the Engineer in charge. Sluice Valve at location at Balancing Tank for pipe connecting pool and balancing tank-Confirming to IS:1538 (with cap) of make Kirloskar or equi. as approved by the Engineer in charge. Others fittings including filter rinse, air release, Pressure gauges etc.---- Vendor Specific Filter Media-- Gravel, sand and white quartz Gradation (No. of Layers) -- 4 layer / Standard Frontal Piping- MS pipe C-Class all fittings including Flanges, Elbow, Tees, gaskets etc with Epoxy coating-- 100 mm Suction piping foot valve---- Dia. 100 - 150 mm Inlet and Outlet sizes (mm) -- 100 – 150 mm Manhole (mm)-- Appropriate size

Cost for all above (A)

B) Pump

Pump Head (m)-- 22.00 m Nos. of Pumps--02 (1W + 1 S) Pump Power (kW), Each - 10.00 Kw Pump type (MOC)-- Horizontal Centrifugal CI Body, SS 304 internal Backwash Time (min) ---10.00 Minutes Backwash Volume-- 23.96 m³ Total makeup volume (m3/d) --45 - 50 m³/d

Cost for all above (B)

C) Chemical Dosing and Mixing

Cl2 dosing System including preparation and dosing pumps & Tanks; -- 100 L , 1 No. HDPE up to 10 L/hr capacity Chlorine dosage--2.50 mg/L Liquid Cl2 required-- 25.00 L/day Alum dosing System including preparation and dosing pumps & Tanks;-- 500 L , 1 No. HDPE Alum dosage -- 20 mg/L - Alum required - 25, Kg/day- Mixer for dosing -- 0.5 hp, 30 – 50 rpm, MOC SS 304,

Cost for all above (C)

Balancing Tank Alum Dosing Mixing. Motor, reduction gear, impeller and shaft --- 1.0 – 1.5 hp motor, Gear box 1: 30 to 40, SS 304 shaft 50 – 75 mm, Length 3.0 m with adequate alignment measures, Impeller dia 30 cm

D) Existing Filter Dismantling

Dismantling existing filter using gas weld cutting, removal of piping, valves and other fixture upto inlet and outlet of pump and making good for fixing of all new fittigs and fixtures etc. complete

E) Civil & Electrical Works

Platforms for additional pump and chemical solution tanks and fixing of mixer in balancing tank etc. complete made up of Brick work with F.P.S bricks of class designation 75 in foundation and plinth in: Cement mortar 1:4 (1 cement:4 coarse sand) with plaster(1 cement:4 coarse sand) and base concrete 1:2:4 etc. complete including all as per the instruction of the Engineer in charge

Electrical cabling, switch gears and Panel for additional motors (Pump, 3 Mixing tanks) and all other existing accessories and electrical fittings etc. complete including all as per the instruction of the Engineer in charge.