AMBERNATH E and M. M and R to Shahad Water Works. Replacement of Backwash Pump at Filter House, WTP Shahad.

1. Designing ,Providing, installing, commissioning and testing of Horizontal Slit case Gland pack Pump having with capable of discharging the rate of 250 Cum/ Hr. at the duty point head and operating at the head of 15 Mtr. and head range 15-20 mtr with 1500 rpm, with squirrel cage induction motor of capacity to run the pump of minimum 18.5 KW / 25 HP with ""F"" class insulation and B class temperature rise with thermostat protection embedded in stator winding complete operating on 440 V, 50Hz, 3 Ph, 1500 RPM AC power supply suitable to drive the pump complete with all accessories, foundation , MS base frame work etc. complete. The pump should have flat efficiency characteristics between operating range as per detail item specifications.

2. Supplying erecting testing and commissioning DI D/F non-rising spindle soft seated glandless Gate Valves (Sluice Valve) with body and bonnet of Ductile cast iron of grade GGG-40, wedge with fully encapsulated EPDM rubber (approved for drinking water ) and seals of NBR. The valves should be with replaceable stem nut and replaceable sliding shoes. Valve stems shall be of single piece thread rolled type. Valve shall have 3 “O” rings of NBR for stem sealing. Gate valve shall be compatible for buried application without valve chamber. Face-to- face dimensions as per BS 5163-89/IS 14846 – PD/EN 558 F4 and flange connections as per EN1092-2/IS 1538, Maximum valve operating torque should be at least 40% less than the torque as stated in the standard EN 1074. Electrostatic epoxy power / liquid coating (EP-P) inside and outside color blue RSL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy coating should be potable water certified. Material of construction :- Body, Bonnet :- Ductile Iron GGG40 (EN-JS-1030) Wedge, (Fully rubber encapsulated):- Ductile Iron GGG 40(EN-JS-1030) encapsulated with EPDM rubber- Portable water certified. Spindle / Stem: - SS: AISI 420 Stem Nut:- Brass Bonnet Gasket: - EPDM rubber potable water certified Internal fasteners: - Stainless Steel SS304 Stem Sealing :- Toroidal NBR sealing rings (Min 03 ‘O’ Rings) Coating: - Inside & Outside epoxy powder coated; DFT minimum 250 micron, shade RAL, 5005 (Signal Blue) potable water certified. (excluding GST) Size 150 mm dia PN 1.0 rating

3. Supplying erecting testing and commissioning DI/D/F Slanted seat swing rubber flap check valve (Non Return Valve) similar to RETO STOP Non return Valve having body of ductile cast iron GGG-40 and disc of ductile cast iron GGG-40 with fully encapsulated with EPDM Rubber (Potable water certified). Slanted seat is fixed for easy opening and quick closing. Full bore opening to achieve high discharges & reduced pressure drops. Check valve Electrostatic epoxy power /liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy coating should be potable water certified. Face to face dimensions as per EN558-1, series 48 and flange connections as per EN 1092-2/IS 1538 including all labour, material complete. PN rating 1.6 Material of Construction :- Body & Cover :- Ductile iron to EN-JS 1030 (GGG-40) Disc :- Ductile iron to EN-JS 1030 (GGG-40, fully coated with EPDM rubber (portable water certified) Hinge Pin/Shaft :- Stainless Steel [ AISI 431] Cover Screws Nuts :- Stainless Steel [ AISI 304] Plug :- Brass Surface Protection :- Epoxy powder coating, min.-250 microns, color: RAL 5005 signal blue (portable water certified) (excluding GST)

4. Manufacturing, providing and supplying spirally welded / ERW/ SAW / fabricated M. S. pipes (Commercial Quality) including procurements of plates, gas cutting to required size rolling, tack welding assembling in suitable lengths to form pipes, welding on automatic welding machine and forming ‘V’ edge on both ends of pipes including railway freight, insurance, unloading from railway wagon, loading into truck, transport to stores, unloading, stacking, excluding GST levied by GOI & GOM in all respect etc. complete as per IS - 3589 and IS-5504 as applicable as per specifications (No negative tolerance in thickness is permissible). 4.1. Dia of Pipe : 200.00 mm (I. D.) Thickness of pipe : 4.1.1. 4) iv) 8.00 mm.

5. Lowering,  laying  in  position to correct line and level including M. S. pipes with / without any outcoating on pedestals or chairs upon prepared formation. The rate to include loading, unloading, hoisting, marginal cutting wherever required, assembling and tack welding, and transportation upto 500 M. etc. completed as specified. 5.1.  5 mm to 8 mm thick 5.1.1. i)) Upto 250 mm. dia.

6. Rebate for dismantled old pump, motor, sluice valve & Non return valve

7. Credit for Dismantled Material 7.1. H.G. / M.S. / G.I. Materials / Poles etc.