WBPHED/EE/MD/NIeQ _07 of 2021-2022

Amount

Opening of all electric connections & dismantling of power pulley block and liner movement gear box, taking out the equipment from the monorail joist.

Complete change of linear gear box, all bearings and shaft and assembling of the same.

Complete change gears of hoisting gear box, bearings and shaft.

Changing of all electrical contacts and related switch gear and push button in the operating block.

Complete assembling of Mechanical and Electrical accessories & necessary circuit and cable connection.

Supply of Float Valve and necessary connections with piping and valve for rubber lined Dozing Tank.

Taking out complete agitator mixing unit including motor, coupling, reduction gear box with connecting rod with spindles with coupling and fan blade unit.

Taking out the Base Frame from civil foundation.

Supply of new Base Frame with S.S. foundation bolt and duly coated with Food Grade Epoxy for rust prevention.

Change of all gearings, shaft and bearings for gear reduction unit and change of coupling.

Change/revamp of Drive Motor or change of Stator Winding, varnishing etc., and check of protection class as per IP-67 and change of shaft and balancing of Rotor.

Change of power shafts and allied coupling and with all S.S. Fasteners.

Change of agitator fan unit with Dynamic balancing.

Complete assembly of all mixing unit and fixing of foundation including civil work with Food Grade Epoxy painting.

Erection of Canopy cover over motor and Gear unit.

Taking out of 5 Nos. actuators from valves viz. inlet (250 mm), outlet (300 mm), air (100 mm), backwash (350 mm) and drain (400 mm) for from bed no. 4 making special lifting arrangement with AID of tripod stand and chain pulley block.

Making alternative arrangement for manual operation with provision of headstock, extension coupling and hand wheel whatever needed for manual operation for Inlet Valve.

Making alternative arrangement for manual operation with provision of headstock, extension coupling and hand wheel whatever needed for manual operation for Outlet Valve.

Making alternative arrangement for manual operation with provision of headstock, extension coupling and hand wheel whatever needed for manual operation for Air Valve.

Making alternative arrangement for manual operation with provision of headstock, extension coupling and hand wheel for manual operation for Backwash Valve.

Making alternative arrangement for manual operation with provision of headstock, extension coupling and hand wheel whatever needed for manual operation for Drain Valve.

Reconditioning of all valves for smooth operation manually checking free movement of wedge lug through the guide channel of the valve body and refacing of seating surfaces of all 05 Nos. valves. Change of all fasteners, S.S. nuts & bolts, packing and gasket or any other spares like spindle, nut etc.

Complete revamping including all mechanical and electrical accessories whatever needed for Electric Actuator for operation of for Inlet Valve right from Control Panel.

Complete revamping including all mechanical and electrical accessories whatever needed for Electric Actuator for operation of Outlet Valve right from Control Panel.

Complete revamping including all mechanical and electrical accessories whatever needed for Electric Actuator for operation of Air Valve right from Control Panel.

Complete revamping including all mechanical and electrical accessories whatever needed for Electric Actuator for operation of Backwash Valve right from Control Panel.

Complete revamping including all mechanical and electrical accessories whatever needed for Electric Actuator for operation of Drain Valve right from Control Panel.

Reassembling of all Actuators with all the valves of the filter bed and necessary testing for operation.

Reconditioning of Control Panel with changes of circuit wearing and all push buttons and indicating lamp and interlock switch.

Dismantling and Complete Take out of all tube settler and full replacement with new Tube Settler including installation approximately 25 Cubic meter with following specifications : a)MOC of Media :PVC b)Plan Settling Area : 12 Sq Mtr/Cubic Meter( approximately ) c) Laying Angle : 60 Deg from Horizontal d) Structure : Hexagonal Chevron e) Cross Sectional Area : 75mmX60 mm f ) Actual Plan area of Each Settler : 68.72 Sq Mtr

DEBAPRIYA SAHA

MILLENNIUM ENTERPRISE