Maintenance work

Amount

Supplying and fixing of Vertical Post M.S pipe hollow section 40mmx40mmx4.80mm (medium weight) of approved quality and make including labour for fabrication, labour for petty iron works and painting two coats of synthetic enamel paint over primer etc complete complying with standard specification and as directed by the departmental officers at site of work.

Supplying and fixing of MS.Pipe hollow box section 25mmx25mmx2.50mm (medium weight) of approved quality and make including labour for fabrication, labour for petty iron works and painting two coats of synthetic enamel paint over primer etc complete complying with standard specification and as directed by the departmental officers at site of work.

Supplying, fixing and roofing with colour galvalume sheet of 0.47mm thick with all necessary accessories such as J/V bolt and nuts of suitable length with suitable bitumen washers complete complying with standard specification and as directed by the departmental officers.

Supplying and Fixing the Reverse osmosis plant 500 liters/hr PWD specifications: Supplying and Erecting in position of following liters capacity Industrial Model Reverse osmosis Water – cum - purifier to deliver Potable Water with World Health Organization (WHO) Standards with following accessories. (a) MS Skid – 1 No (b) Media 11054 No. Vessel with 20 NB Multiport Valve (with media Pebble and Fine Sand and Activated Carbon Filling) Set. (c) Feed Pump 0.50 HP – 1 No (d) Vertical Pump 2-9, 2.00 HP / Single Phase – 1 No (e) Membrane 40 x 40 Filmtech ( or) equivalents / Osmonic (USA) - 1 No and Membrane Pressure Vessel 40 x 40 – 1 No & Pressure Gauge – 2 Nos (f) Flow Meter – 1 No , 20 “Filter with Housing – 1No, Low Pressure switch – 1 No, Level Switch – 1 No & Necessary CPVC Pipes and Fittings. The system shall be provide with Two Panel Control System with necessary Stainless Valves and Fittings and Float control etc., The rate should be inclusive of all Civil works, wherever necessary to install the system in position and intact

Supplying and Fixing of Automatic Multiport Valve with flow rate of 2000Litres per hr for backwash and rinse application for Dual Media Filter for the removal sediments and organic impurities present in the water. It must be compatible with the filtration system specifications and designed to handle automated flow diversion for service, backwash, rinse, and shut-off functions as required. The rate is inclusive of cost of materials, Handling charges that includes loading and unloading charges, transportation to site and labour charges for fixing in position with necessary accessories and finishing neatly as directed by the departmental officers..

Supplying and Fixing of Auto Flushing with flow rate of 2000Litres per hr applications for effective maintenance of membrane and cleaning of membrane filtration units, including auto cut off arrangements for operational safety and efficiency. The rate is inclusive of cost of materials, integrated control components(such as solenoid valves, timers, sensors if required), Handling charges that include loading and unloading charges, transportation to site and labour charges for fixing in position with necessary accessories and finishing neatly as directed by the departmental officers. (The system shall be designed to automatically flush the membrane at predefined intervals or conditions to prevent fouling, scaling, and performance deterioration, thereby extending the membrane's operational life)

Supplying and Fixing of Water Dispenser (Clan type model) having total storage capacity of 80 litres (65L Cold, 15L Ambient and Hot 2L) with overall size of 660x575x1575 mm (WxDxH) and should be made from Polyurethane Foam (PUF) material. It must consist of 3 Nos of Faucets (Ambient, Hot & Cold). It shall maintain a Cooling temperature range of 16°C - 22°C and heat temperature range of 50°C - 75°C. It must carry good quality Compressor (Tecumseh or its equivalent) and refrigerant as Tetrafluroethane (R134A). The water storage tanks (Hot and Cold) must be made from Linear Low Density Polyethylene (LLDPE) Polymer of thickness 0.8 mm. The Dispenser must be supported with legs made from Stainless steel SS 202 grade material (of thickness 2.0 mm). The rate is inclusive of cost of materials, handling charges that include loading and unloading charges, transportation to site and labour charges for fixing in position with necessary accessories and finishing neatly as directed by the departmental officers

Supplying of the Reverse osmosis plant of capacity 50 liters/hr and Erecting in position of following liters capacity Industrial Model with following accessories. 1. Carbon filters - 1 Nos 2. Reverse Osmosis Kid - 1 No. 3. Membrane Housing – 4 Nos. 4. Reverse Osmosis Membrane (of 100 GPD) – 4 Nos. 5. Storage tank of 50 Litres capacity 6. Booster pump of 48 Volts and 1.8 Amps – 2 Nos. 7. Compatible Adapter – 2 Nos. 8. Sediment Filter – 2 Nos. 9. Flow Resistor – 2 Nos. The system shall include automatic cutoff arrangements ( The pump stops automatically when the tank is full or when there is no supply to ensure safety and energy efficiency). The work shall be finished neatly and handed over in working condition after proper testing for flow rate, water quality and leak proof performance complying with standard specifications and as directed by the departmental officers

Supplying, laying and jointing CPVC 20mm dia pipes of Standard Dimension Ratio 11 (Pressure class 1) conforming to IS:15778 - 2007 of approved quality and best variety of the following dia including cutting and fixing CPVC specials using CPVC adhesives (Solvent Cement) (but excluding cost of such specials) and fixing into wall with teak wood plugs, CPVC clamps and screws making holes on the wall (or) drilling holes in the roof and making good the dismantled portion to original condition with necessary brick work / cement concrete and plastering neatly wherever necessary with necessary scaffolding charges, etc., complete complying with standard specifications and as directed by the departmental officers. (The CPVC pipes shall be got approved by Executive Engineer before use on works) - Internal water supply above ground level.

Supplying and fixing of 20mm CPVC special of approved quality and make including labour for fixing in position etc complete complying with standard specification and as directed by the departmental officers at site of work.

CPVC Elbow

CPVC Tee

CPVC Bend

CPVC Valve

Supplying, laying and jointing PVC 40mm dia pipes (having working pressure 10 kg. / sq.cm) of approved quality and best variety conforming to BIS of the following dia including cutting, threading and fixing PVC specials using PVC adhesives (but excluding cost of such specials) and fixing into wall with teak wood plugs, PVC clamps and screws making holes on the wall (or) drilling holes in the roof and making good the dismantled portion to original condition with necessary brick work / cement concrete and plastering neatly wherever necessary with necessary scaffolding charges, etc., complete complying with standard specifications. The PVC pipes shall be got approved by Executive Engineer before use on works. - Internal water supply above ground level.

Supplying and fixing 40mm PVC special of approved quality and make including labour for fixing in position etc complete complying with standard specification and as directed by the departmental officers at site of work.

PVC Elbow

PVC Tee

PVC Bend

GST at 18%

L.THEERTHALINGAM (BID ID -1520497)

A ANANTHASAYANAM (BID ID -1520762)