Overhauling of CEP discharge valves

Amount

Complete Overhauling of CEP Discharge valve (Motor Operated, GV-250 NB -CL.300 ) including Removal of actuator from the valve stem, removal of actuator thrust base, Dismantling of valve bonnet, removal of valve stem and gate, Cleaning of valve internals, Lapping of valve gate seating area, Blue matching of valve gate seating area and seat in valve body, Assembling of valve gate and stem in the valve casing, assembling of valve bonnet, renewal of gasket in valve bonnet, fixing the actuator on the valve stem and commissioning the valve.

Complete Overhauling of Deaerator level control station isolation valve (Motor Operated, GV-400 NB -CL.300 ) including Removal of actuator, Dismantling of valve bonnet, removal of valve stem and gate, Cleaning of valve internals, seal ring seating area, Lapping & Blue matching of disc and seat, Assembling the valve with new gasket and gland packing, placing the actuator and commissioning the valve.

Complete Overhauling of Deaerator level control station isolation valve (Manual Operated, GV-400 NB -CL.300 ) including Removal of Gear Box and hand wheel, Dismantling of valve bonnet, removal of valve stem and gate, Cleaning of valve internals, seal ring seating area, Lapping & Blue matching of disc and seat, Assembling the valve with new seal ring and gland packing, placing the actuator and commissioning the valve.

Complete Overhauling of Deaerator level control valve (GV-300 NB -CL.300, pneumatic operated ) including Removal of actuator from the valve stem, removal of actuator thrust base, Dismantling of valve bonnet, removal of valve stem and gate, Cleaning of valve internals, Lapping of valve gate seating area, Blue matching of valve gate seating area and seat in valve body, Assembling of valve gate and stem in the valve casing, assembling of valve bonnet, renewal of gasket in valve bonnet, fixing the actuator on the valve stem and commissioning the valve.

Modification of steam line from PRDS to TDBFP drive turbine auxiliary control valve by cutting, removal of existing main line, drain lines and gland sealing lines (OD 73 x 5.16mm thick, OD 168.3 x 7.11mm thick, OD 33.4 x 4.55 mm thick ), changing of orientation of bent, providing temporary supports, fitting up the lines, complete the welding with IBR quality welder, removing of temporary supports provided after completion of welding.

Modification and lowering the TDBFP’s ACV platform by 1 m including providing chain block arrangements and providing temporary supports for the existing platform, cutting the edges of 400mm I beam provide in 4 sides of the platform on both sides by using gas cutting, cleaning the cutting edges and preparation of I beam edges for welding, fitup the I beams at four corners of the platform on both sides, complete the welding with arc welding, removing the chain blocks and temporary supports provided after completion of welding.

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