WBPHE/EE/SMD/NIeT-60 of 2025-26/2

Inspection and comprehensive examination of the defective noisy Centrifugal Pumping Machinery (Q-3450 m3/hr, H-17 m, Motor Rating-250kW) for detecting the actual fault associated with the same by using proper testing equipment and engaging competent technicians, having adequate knowledge pertaining to the same as per direction of EIC.

Dismantling the said pumping machinery with all its related mountings and accessories (viz. Motor, Intermediate Shafts, Impeller with Shaft, Neck Ring, Carrier Bushes, Shaft Sleeve, Shaft Bearings etc.) part by part, after disconnecting the relevant electrical/mechanical connections, adopting appropriate safety precautions by using necessary T&P and by engaging competent personnel followed by segregating the spares into serviceable and unserviceable ones. This includes the charges for machining the coupling holes to match the new bushes and bolts along with the cost for hiring additional dewatering pump for bailing out the water from the pump house whiie going on the work (for 3 days appx.).

Bearing (No. 7220 BECBM)(Make-SKF)

Pin Bush Coupling Set

Reassembling the pumping machinery by using the dismantled spares (after having been serviced properly), the newly supplied ones (Item No. 3.01-3.02) as well as the departmentally supplied materials (viz. Intermediate Shafts, Carrier Bushes, Pump Coupling Bushes, Fasteners etc.), followed by reinstallation of the same by using necessary T&P and by engaging competent personnel. The work includes thorough cleaning, providing necessary hardware and consumables required, and carrying out the execution of the work by deploying expert technicians. The job also involves proper alignment of the pumping machinery with the existing motor in position, using a dial gauge to achieve radial alignment within 0-0.002" and axial alignment within 0-0.0015" as directed.

Testing and commissioning of the entire installation in presence of th etechnicians up to entire satisfaction of EIC.

Inspection and comprehensive examination of the defective Vacuum Pumping Machinery (10 HP) for detecting the actual fault associated with the same by using proper testing equipment and engaging competent technicians, having adequate knowledge pertaining to the same as per direction of EIC.