Overhauling of various size of Feed discharge valves

Amount

Charges for complete Overhauling of Feed discharge valves (400 NB, 2500CI) 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 seal ring and gland packing, placing the actuator and commissioning the valve.

Rectification of defect in valve body bolt threads by drilling and tapping, enlarging the matvhing holes in the yoke and replacing with new bolts (400NB, 2500CI).

Complete Overhauling of HP Heaters safety valves (4”/6” safety relief valve) including removal of valve from heater, dismantling of valve, removal of relief spring, removal of valve stem, Inspection and cleaning of valve disc seating area, Blue matching of valve disc seating area and seat in valve body, assembling of valve in the valve casing, fixing of relief spring, setting of relief spring tension according to the required pressure, conducting hydro test, fixing the valve in heater, renewal of gasket in bottom and discharge line flanges.

Reconditioning of defective Fed discharge valve (400 NB, 2500CI) bonnet including measuring the depth of cack in gland packing seating area in bonnet, machining the gland packing seating area upto the depth of 3mm higher than the crack depth for material filling and better bonding with the parent material, preheating the bonnet before filling the material by welding, filling the material layer by layer on machined area of the bonnet by welding for the required dimension by giving the clearance for final machining, rough machining in lathe and final machining in CNC in gland packing seating area of the bonnet for required dimension after completion of material filling by welding, conducting UT test to ensure the bonding between welding material with parent material.

MICRO SPARES