bmc for control valves , at rcf thal binneial maintenance contract for control valves , at rcf thal , binneial maintenance contract for control valves , at rcf thal , cv : maintenance at partys works : standard servicing of dis-assembly , cleaning , overhauling , lapping of seat and plug , overhauling of stuffing box , changing of gland packings , testing of seat leakage , hydro-test for body joints , testing and eliminating valve passing , calibration etc . , prssure ratings 150# to 300# valve size upto 3 , prssure ratings 150# to 300# valve size >3 to 6 , prssure ratings 150# to 300# valve size >6 to 12 , prssure ratings 600# valve size upto 3 , prssure ratings 600# valve size > 3 to 6 , prssure ratings 600# valve size > 6 to 12 , prssure ratings 1500# - 2500# valve size upto 3 , prssure ratings 1500# - 2500# valve size >3 to 6 , prssure ratings 1500# - 2500# valve size > 6 to 12 , cv : at site : at site standard servicing consists of : dis-assembly , cleaning , overhauling , lapping of seat and nozzle , overhauling of stuffing box , changing of gland packings , boxing of control valve and stroke checking , arresting any body joint leakage including gland packing , if any after the valve is taken in line . , prssure ratings 150# to 300# valve size upto 3 , prssure ratings 150# to 300# valve size >3 to 6 , prssure ratings 150# to 300# valve size >6 to 12 , prssure ratings 600# valve size upto 3 , prssure ratings 600# valve size > 3 to 6 , prssure ratings 600# valve size > 6 to 12 , prssure ratings 1500# - 2500# valve size upto 3 , prssure ratings 1500# - 2500# valve size > 3 to 6 , prssure ratings 1500# - 2500# valve size > 6 to 12 , attending of gland leakages during shut-down for all types of control valve at site . , stelliting ( coating with standard material ) charges per sq . com . for valve trim parts ( _____/cm2 ) , cv : pneumatic actuator servicing consists of : dis-assembly of actuator , inspection of diaphragm and spring , cleaning , replacement of worn out parts like diaphragm , o rings , bushings/springs , boxing up of actuator and testing for any leakage , calibration etc . , prssure ratings 150# to 300# valve size upto 3 , prssure ratings 150# to 300# valve size >3 to 6 , prssure ratings 150# to 300# valve size >6 to 12 , prssure ratings 600# valve size upto 3 , prssure ratings 600# valve size > 3 to 6 , prssure ratings 600# valve size > 6 to 12 , prssure ratings 1500# - 2500# valve size upto 3 , prssure ratings 1500# - 2500# valve size > 3 to 6 , prssure ratings 1500# - 2500# valve size > 6 to 12 , cv reconditioning of valve body threads by welding/filling and threading to match with the original seat , prssure ratings 150# to 300# valve size upto 3 , prssure ratings 150# to 300# valve size >3 to 6 , prssure ratings 150# to 300# valve size >6 to 12 , prssure ratings 600# valve size upto 3 , prssure ratings 600# valve size > 3 to 6 , prssure ratings 600# valve size > 6 to 12 , prssure ratings 1500# - 2500# valve size upto 3 , prssure ratings 1500# - 2500# valve size > 3 to 6 , prssure ratings 1500# - 2500# valve size > 6 to 12 , cv painting , all prssure ratings valve size upto 3 , all prssure ratings valve size > 3 to 6 , all prssure ratings valve size > 6 to 12 , control valve handling charges/trip basis ( loading and unloading inclusive ) , mobilisation charges ( each continuous job at site ) as per shut-down schedule , supply of actuator diaphragm , actuator diaphragm ( rubber nylon inserted ) upto 2 , actuator diaphragm ( rubber nylon inserted ) > 2 to 4 , actuator diaphragm ( rubber nylon inserted ) > 4 to 8 , actuator diaphragm ( rubber nylon inserted ) >8 to 12 , actuator diaphragm ( rubber nylon impregnated neoprene rubber ) upto 2 , actuator diaphragm ( rubber nylon impregnated neoprene rubber ) > 2 to 4 , actuator diaphragm ( rubber nylon impregnated neoprene rubber ) >4 to 8 , actuator diaphragm ( rubber nylon impregnated neoprene rubber ) > 8 to 12 , fabrication and supply of gland flange assembly for all pressure ratings , fabrication and supply of gland flange assembly for all pressure ratings upto 2 , fabrication and supply of gland flange assembly for all pressure ratings > 2 to 4 , fabrication and supply of gland flange assembly for all pressure ratings > 4 to 8 , fabrication and supply of gland flange assembly for all pressure ratings > 8 to 12 , supply of actuator spring , actuator spring for all presurre ratings upto 2 , actuator spring for all presurre ratings > 2 to 4 , actuator spring for all presurre ratings > 4 to 8 , actuator spring for all presurre ratings > 8 to 12 , supply of u seal/balance ring ( glass/grafoil filled teflon ) , u seal/balance ring ( glass/grafoil filled teflon ) upto 3 , u seal/balance ring ( glass/grafoil filled teflon ) > 3 to 6 , u seal/balance ring ( glass/grafoil filled teflon ) > 6 to 12