bids are invited for repair and calibration work 1 - repair and calibration of deaerator auto water level control system scope of work dismantling repairing and calibration of auto control valve repairing and calibration of electropnematic positioners repairing and calibration of i/p convertors repairing installation of air filter and regulators seat and plug turning (if required) of control valve checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 2 - repair and calibration of feed water drum level control system of boiler no 1 and 2 scope of work dismantling repairing and calibration of auto control valve repairing and calibration of electropnematic positioners repairing and calibration of i/p convertors repairing installation of air filter and regulators seat and plug turning (if required) of control valve checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 3 - repair and calibration of feed water alarm system scope of work dismantling repairing and calibration of controller repairing of level transmitter repairing of 24 volt power supply checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 4 - repair and calibration of supper heater wash water automation system of centrifugal machine scope of work dismantling repairing and calibration of water control valve repairing of temp. controller repairing of solenoid valves repairing of air regulator and thermocouple checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 5 - repair and calibration of imbibition water control system scope of work dismantling repairing and calibration of auto control valve repairing and calibration of electropnematic positioners repairing and calibration of i/p convertors repairing installation of air filter and regulators seat and plug turning (if required) of control valve checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 6 - repair and calibration of de-superheater control system of 1 kg/cmsquare exhaust line scope of work dismantling repairing and calibration of auto control valve dismantling of all desuper heating valves in exhaust line repairing of all desuper heating valves in exhaust line repairing and calibration of electropnematic positioners repairing and calibration of i/p convertors repairing and calibration of i/p convertors repairing installation of air filter and regulators seat and plug turning (if required) of control valve checking and testing of control cable complete assembling installation and satisfactory load trial , repair and calibration work 7 - repair and calibration of prv control system of 42 kg/cmsquare to 1 kg/cmsquare steam line scope of work dismantling repairing and calibration of auto control valve repairing and calibration of electropnematic positioners repairing and calibration of i/p convertors repairing installation of air filter and regulators seat and plug turning (if required) of control valve checking and testing of control cable complete assembling installation and satisfactory load trial total quantity : 8