TTPS Operation Circle MPM II ACP Reconditioning of cooling Tower C by replacing of fills, drift eliminators, spray header pipes, Overhauling of 200 NB 150 NB gate valves, Eroded discharge reducer pipe lines at Unit IV V AC Plant cooling tower etc

Charges for removal of motor, Capacity: 7.5KW from the cooling tower, after dismantling the supporting pipe, mesh and fan blades, fixing disc etc., to be kept nearby cooling towers 'C' located at 21 mtr level in unit IV & V as per the direction of Engineer in Charge. [The rates inclusive of consumables, T&P hire charges.]

Charges for removing all the PVC drift-eliminators, PVC fills, air inlet louvers etc., from the cooling tower and complete cleaning of inside the cooling tower 'C' as per the direction of Engineer in charge. Scrap materials are to be devoluted to stores. [The rates inclusive of consumables, T&P hire charges.]

Charges for assembling of New / existing cleaned PVC fills, one set in the cooling tower 'C' by positioning properly after providing the G.I pipes for supporting of fills as per the direction of Engineer in charge. [The rates inclusive of consumables, T&P hire charges.]

Charges for erecting the inlet pipe header assembly with adopter and spray nozzles [Header pipe dia 150mm, length 2mtr, Branch pipe dia 50mm each 700mm length qty 6.Nos] in the cooling tower 'C' by fixing properly and connecting the 150mm pipe flange as per the direction of Engineer in charge [ The rates including all T&P and consumables, bolts & nut flange etc.,]

Charges for fabrication and erection of mesh for supporting the drift Eliminators at the size of (1.85x1.85) mtr by the 6mm M.S rod in Cooling Tower 'C' as per the direction of Engineer in charge. (The Rates including the materials like mesh, 6mm M.S rod total length 15mtr and consumables, bolts & nut flange etc.,]

Charges for re-assembling the drift-eliminator material PVC 1 set after assembling the mesh of size(1.85X1.85)m for supporting of the drift eliminators in the cooling tower as per the direction of Engineer in charge. [The rates inclusive of consumables, T&P hire charges.]

Charges for re-assembling of the motor capacity 7.5 KW by fixing fan blades with disc, supporting pipes, mesh etc., aligning and commissioning of the cooling tower 'C' at unit IV & V as per the direction of Engineer in charge. [The rates inclusive of consumables, T&P hire charges.]

Charges for fixing the new air inlet louvers in the cooling towers and to provide arrangement by tinkering work to avoid the spilllage of water in all sides of the cooling tower 'C' by G.I sheet of 1mm thick if necessary fixing the louvers by bolt & nuts after providing the holes as per direction of Engineer in charge [G.I sheet will be supplied by board and the rates inclusive of consumables, T&P hire charges.]

Fabrication and erection of 200/150mm reducer pipe line with flanges in cooling tower 'C' discharge header after removal of existing worn out reducer pipe line as per the direction of engineer in charge. [Rate including cutting gas, Welding rods,T&P 's hire charges with consumables]

Charges for Replacement / Overhauling the worn out 150 / 100 NB plate / butterfly / gate / NRV valves.

Charges for overhauling of 200 NB Gate valve

Charges for chipping and removing the insulation packing of chiller, dismantling the chiller by cutting welding of structural channels, if necessary, providing holes for shifting the chiller [ capacity 120Ton model DXC 3010] approximate weight of 2Ton by using chain blocks and special lifting arrangements after disconnecting the connected pipe joints, lifting and bringing down the chiller after providing necessary scaffolding, shifting the chiller to repair bay including the cost of labour, materials and T&P’s.

Charges for lifting the reconditioned chiller from repair bay of AC plant at Unit IV & V approximate weight of 2Ton to the height of 3mtr by using the chain blocks and special lifting arrangements. Re- fixing in existing position of chiller after providing necessary scaffolding arrangement If necessary welding of channels. in the structural channel, tightening of bolts after aligning and fixing in correct position as per the direction of Engineer-in charges.

Charges for re fixing of suction & discharges pipes with bends after dismantling dummy plates, re- welding of connected refrigerant gas pipes, chill water drain pipes and reinsulated the chiller & pipes by expanded polystyrene wool or insulation wool with mesh and plastering with cement as per the direction of Engineer- in –charges.

For plastering work for chiller, suction discharge pipes etc

Charges for reconditioning of the suction and discharge gas valves of compressor, carrying out the flushing of the all gas lines by admitting Nitrogen gas. If necessary renewing the copper tubes, leak testing, vacumising & commissioning of compressor after coupling and aligning as per the direction of Engineer – in- charge.

Charges for providing the temperature and pressure Gauges in both suction and discharge water lines of chiller by providing the brass adopters as per the direction of Engineer – in – charge.

Charges for transfering of R22 refrigerant gas from condenser of compressor 'B' to the empty cylinders by using the 5 or 2Ton compressor with ice bar, renewal of safety valve, charging of the nitrogen (N2) gas, vaccumising, retransferring the R22 gas from empty cylinder to condenser and commissioning of the compressor 'A' at unit IV & V AC Plant. [The nitrogen (N2) gas, ice bar, adapter for safety valve under contractor's scope and the 5 or 2 ton compressor will be supplied by TANGEDCO scope] as per the direction of Engineer - in - charge

Material cost Contractor scope PVC Drift Eliminators

Material cost Contractor scope Air inlet louvers

Material cost Contractor scope Inlet pipe header assembly with adopter and spray nozzles

Material cost Contractor scope PVC Fills

Material cost Contractor scope Range 0-15 kg / cm 2

Material cost Contractor scope Range 0-25 kg / cm 2

Material cost Contractor scope 1.0- 50˚C Temperature gauge

Material cost Contractor scope Safety valve with suitable adapter

Material cost Contractor scope Brasomatic valve size : 32mm

MENAKA CONSTRUCTION ENGINEERS