Preventive maintenance of 7.2cusec HSC pumping unit no 1 4 and 6 and Repair And maintenance of 914mm dia dresser /flexible compression couplings and Air release valves installed/fitted with the rising main at different prescribed RDs at Raya Lift

Amount

Unit No. 1,4 & 6 Job involves preventive maintenance by way of dismantling the pumping unit by removing the upper half casing after opening the studs, nuts, bolts and other accessories and subsequently extracting out the rotating assembly from the lower casing and thereafter clearing the silt/ accumulated in the casing and impeller section. Greasing the bearings at both ends and other parts. P/F of new nuts and bolts 09 nos for pump no 1 and 13 no bolts for pump no 4 and 11nos for pump no 6 inlieu of damaged bolts,gland bolts 6nos instead of damaged gland bolts,gland packing and oil paper gasket of the same size as per sample and closing the top cover. Coupling of the pump with the prime mover with nuts bolts and bushes after making proper alignment and testing the unit on full load. The job includes cost of material, labour charges, hire charges of tools and tackles, to and fro carriage charges etc. (Complete Job)

Repair/Maintenance of 914 mm dia dresser/flexible compression coupling fitted with the Rising Main at LIS Raya by way of opening/cutting of rusted/damaged studs and nuts 22 Nos. Pulling out dresser coupling rings from both sides and extracting damaged V-type gaskets from grooves. Complete cleaning of internal body and grooved surfaces where V type gaskets are to be fitted with chemical and scrubbers to remove rust and other foreign material on it. P/F of new V type gaskets fabricated out of high quality rubber, 6 running meter (i.e.3mtr.for each side) as per sample. Fitting/tightening of both side rings by p/f of new 22 nos. studs along with nuts fabricated out of high carbon steel as per sample in proper alignment with rising main. The job includes cost of material, labour charges, hire charges of tools and tackles, to and fro carriage charges. Complete job. RD 135

Repair/Maintenance of 914 mm dia dresser/flexible compression coupling fitted with the Rising Main at LIS Raya by way of opening/cutting of rusted/damaged studs and nuts 21 Nos. Pulling out dresser coupling rings from both sides and extracting damaged V-type gaskets from grooves. Complete cleaning of internal body and grooved surfaces where V type gaskets are to be fitted with chemical and scrubbers to remove rust and other foreign material on it. P/F of new V type gaskets fabricated out of high quality rubber, 6 running meter (i.e.3mtr.for each side) as per sample. Fitting/tightening of both side rings by p/f of new 21 Nos. studs along with nuts fabricated out of high carbon steel as per sample in proper alignment with rising main. The job includes cost of material, labour charges, hire charges of tools and tackles, to and fro carriage charges. Complete job. RD 1000

Repair/Maintenance of 914 mm dia dresser/flexible compression coupling fitted with the Rising Main at LIS Raya by way of opening/cutting of rusted/damaged studs and nuts 18 Nos. Pulling out dresser coupling rings from both sides and extracting damaged V-type gaskets from grooves. Complete cleaning of internal body and grooved surfaces where V type gaskets are to be fitted with chemical and scrubbers to remove rust and other foreign material on it. P/F of new V type gaskets fabricated out of high quality rubber, 6 running meter (i.e.3mtr.for each side) as per sample. Fitting/tightening of both side rings by p/f of new 18 Nos. studs along with nuts fabricated out of high carbon steel as per sample in proper alignment with rising main. The job includes cost of material, labour charges, hire charges of tools and tackles, to and fro carriage charges. Complete job.RD No. 2000

Dismantling of air release valve installed at different RD`s from the flange coupling connecting it with 914 mm dia rising main after opening the top cover / locking arrangement of the door of the air release valve by opening/cutting of rusted nut/ bolts . Shifting of air release valve to workshop. De-scaling /cleaning/mud/foreign material deposited inside the body of the air release valve by scrubbers & emery paper. Repair to the cast iron body of the valve by way of welding with cast iron electrodes and then setting right the system of the air release valve with replacement of perished balls & damaged plates Shifting back of air release valve to site & fitment at a respective RD`s with the replacement of worn-out flange & valve gaskets . The Job includes cost of material, to & fro carriage charges, labour charges. Complete Job RD's 200, 768, 1195, 2756& 3300.

Vaibhav Engineers and Technocrates

GEETA ENGINEERING MECH WORKS