OTNO45/2020-21

Amount

Overhauling of 200 mm size valve, ACW/CCW cooling water line valves at compressor room suction and discharge side gate valve & cleaning of seating surface and lapping of valve gate and seat for perfect matching and checking with leak test including cost of consumables.

Overhauling of 100/125mm valves, this overhauling involves dismantling, inspection, rectification of defects if any, lapping of valve seat and disc, renewal of sealing rings, gland packing, flange gaskets, and bonnet gasket, cleaning all parts, inspection of drive bush, bearings, etc. and renewing if necessary and assembling of valves.

Charges for dismantling the 40 - 80mm gate valves, cleaning and checking the internal parts and replacing if necessary, lapping of gate valves and gate ways, providing new gland ropes, re-assembling the valve for trouble free operation with leak test.

Charges for dismantling of TAC Outlet air line cooler pipe connections, Overhauling of coolers including hydraulic testing of Tube nests and reassembling of pipe all connections fittings with leak test including cost of consumables.

Dismantling and removing the muffler, Inlet valve, exhaust valve, pre filter, oil filter, after filter, non return valves, drain outlet inlet and outlet pipe connection and clearing the desiccant inside the filters.

Cleaning of filters replacing the wornout spares by new one, refilling the desiccant and reassembling of inlet and outlet pipe connection as directed by the site in charge. (Spares will be supplied by TANGEDCO)

Charges for dismantling the solenoid valve assembly arrangements by using special tool kits, and replacing the wornout spares with new one and reassembling the solenoid valve assembly arrangements as directed by in charge. (Required Spares will be supplied by TANGEDCO)

ANNAI ENTERPRISES