Renovation of Existing 16.0 MLD Sweage Treatment Plant SBR Techonology (Machanical Work )

Collection Tank (Inlet Chamber) Providing, fixing, Erecting And commissioning of Collection Tank. Collection tank include following Units a) Automatic barscreen welding and repairing work The contractor shall dismantle, inspect, repair, refurbish, al • Fabricatiiognn, uerseinctg, tAesItS, Ian3d0 4coSmtaminislessiosnS ttheee l sections matching the existing design. • Welding shall be carried out using TIG (GTAW) process with ER308L stainless steel filler wire. • All welded joints shall be ground smooth and chemically passivated to restore corrosion resistance. • Replacement of damaged fasteners with SS304 fasteners. • Adjustment of chain tension, guide rails, sprockets and drive mechanism. • No-load and full-load testing after completion. The repaired bar screen shall operate smoothly without vibration, abnormal noise or excessive wear.

b) Hydraulic cylinder- 5 ton Supply, installation, testing and commissioning of heavy-duty hydraulic cylinder suitable for operation of the automatic bar screen. The cylinder shall have the following minimum specifications: • Rated Push/Pull Force: 50 kN (Approx. 5 Metric Ton) • Cylinder Rod Material: EN8 Steel • Hard Chrome Plating: 50–70 micron • Cylinder Tube: ST52 Honed DOM Tube • Seals: Polyurethane (PU) / Viton • Working Pressure: 140–160 bar • Test Pressure: Minimum 1.5 times working pressure • End Connections: Existing compatible • Make: Bosch Rexroth / Yuken / Polyhedron / Parker / Approved Equivalent

Hydrlic Pipe , Providing and fixing high-pressure hydraulic hose assembly complete with fittings. Specifications: • Standard: SAE 100 R2 (Two Wire Braided) • Working Pressure: 215 bar • Minimum Burst Pressure: 850 bar • End Fittings: SS304 or Carbon Steel Zinc Plated • Hose Cover: Oil, weather and abrasion resistant • Complete with hexagonal nipples, adaptors and clamps. • Make: Gates / Parker / Dunlop Hiflex / Approved Equivalent

Hydralic Power Pack 2HP MOTOR Supply, installation, testing and commissioning of hydraulic power pack. The power pack shall consist of: • Motor: 1.5 kW (2 HP) ,415 V ±10% ,3 Phase ,50 Hz ,1500 RPM ,TEFC,IP55 , Class F Insulation Hydraulic System: • MS fabricated oil reservoir (40–60 litres) • Internal epoxy coating • Pressure relief valve • Suction strainer • Return line filter • Oil level indicator • Pressure gauge • Breather filter • Flexible couplings • ISO VG 68 hydraulic oil Complete with all accessories necessary for satisfactory operation. Make of motor: ABB / Siemens / CG / Bharat Bijlee / Approved Equivalent

Installation & Labour Charges The scope shall include: •• DAinscmhaonritnlign.g existing hydraulic assembly. • Hydraulic hose routing. • Trial run. • Adjustment of stroke. • No-load testing. • Full-load testing. • Final commissioning. The contractor shall rectify all defects observed during testing at no additional cost. FOR ITEM NO 1.01 to 1.04 .

f) Ultrasonic sensor Supply, installation, testing and commissioning of two ultrasonic level transmitters for measuring upstream and downstream water levels across the mechanical bar screen for differential head monitoring. • Emergency Stop • Terminal Blocks • Space Heater Each transmitter shall have: • Measuring Range: 0–5 metres • Accuracy: ±0.25% or better • Output: 4–20 mA • Communication: HART Protocol • Sensor Protection: IP68 • Transmitter Protection: IP65 • LCD Display • Temperature Compensation • Non-contact ultrasonic technology The differential level shall be calculated through PLC/SCADA using signals received from both transmitters. Make: Siemens / Endress+Hauser / Vega / ABB / Approved Equivalent

g) Auto barscreen conveyor Control Panel to SCADA Acess.Supply, fabrication, installation, testing and commissioning of local control panel for automatic bar screen operation. Panel Specifications: • CRCA Sheet Steel Enclosure • Minimum 2 mm thickness • Powder coated • IP54 Protection • Floor Mounted The panel shall include: • MCCB • MPCB • MCBs • Contactors • Thermal Overload Relays • Digital Voltmeter • Digital Ammeter • Indicating Lamps • Selector Switches • Emergency Stop • Terminal Blocks • Space Heater • Cooling Fan with Filter Communication: The panel shall support either: • RS-485 Modbus RTU Communication, or • Ethernet Modbus TCP/IP Communication as required for complete PLC/SCADA integration and remote monitoring. The panel shall provide dry contacts for: • Healthy • Fault •M Rauknen: Lin&gT / Schneider / Siemens / ABB / Approved Equivalent

ITME NO 02 CONVEYOR BELT Providing, fixing, Erecting And commissioning of Conveyor Belt.Conveyor Belt include following Units. a) 8mm Thikness 3 ply belt M -24 Grade rubber belt Supply, installation and commissioning of heavy-duty conveyor belt suitable for handling screenings. Specifications: • Width: 500 mm (or as per existing) • Thickness: 8 mm • Construction: 3 Ply Nylon-Nylon (NN) • Top Cover: 5 mm • Bottom Cover: 3 mm • Rubber Grade: M24 • Abrasion Resistant • Oil and Weather Resistant • Endless Joint by Hot Vulcanization Make: Fenner / Continental / Dunlop / Approved Equivalent

b) 3 hp Motor warm gearbox Supply, installation and commissioning of conveyor drive assembly. Motor: • 2.2 kW (3 HP) • 415 V • 3 Phase • 50 Hz • IP55 • Class F Insulation • TEFC Gearbox: • Worm Reduction Gearbox • Cast Iron Housing • Bronze Worm Wheel • Hardened Steel Worm Shaft • Output Speed: 30–45 RPM • Service Factor: Minimum 1.5 • Suitable for continuous duty Complete with: • Base Frame • Flexible Coupling • Guards • Fasteners • Alignment • Testing and Commissioning Make: Bonfiglioli / Elecon / Premium / ORA / Approved Equivalent Testing and Commissioning The contractor shall carry out: • Hydraulic pressure testing • Motor insulation resistance test • Rotation check • No-load trial • Full-load trial • Functional testing of automatic bar screen • Conveyor performance test • SCADA communication test • Differential level alarm testing • Final acceptance testing in the presence of the Engineer-in-Charge.