MID/AN/05

Transportation charges for shifting of worn out items from LIS Rajal to workshop and back shifting to site of installation after conducting repairs involving manual loading, mechanical transportation and handling charges. Complete job.

Repairing of Guide spider by way of replacement of rubber bearings, nitrite rubber pads for arms, CS head screws M12 x 20mm, MS cover dia. 130mm with drilled 4 No. holes for rubber bearing locking and locking screws M10 mm. Complete job.

Fabrication, providing and fitting of top shaft 70mm dia, 2315 mm long made out of stainless steel AISI-410 grade with one no coupling key and one no coupling pump half key as per sample.Complete Job.

Repairing of the CI stuffing boxes of 20 cusec VT pumps installed at LIS Rajal by way of shifting the same to workshop, extraction of the damaged CI sleeve, re-welding of all corroded surfaces with suitable CI welding electrodes, Providing and machining of new CI sleeve of appropriate size inside the stuffing box neck for retention of the rubber bearing bush, gland packing. Also providing/ fitting of new rubber bearing bush, MS locking plate along with suitable bolts on the bottom of the stuffing box, removal of the broken gland bracket holding studs from the stuffing box surface, re-threading & fitting of new studs of required size. Complete job.

Reconditioning of 200 mm dia. x 2000mm length, ERW shaft enclosing tube by cutting, removing from both ends of 200 mm dia. shaft enclosing flanges and fitting of new flanges of similar size and specification to each end of the tube which should have six No. of M20 dia. size threads, MS welding to both ends of the flanges with main tube and then turning, facing both the ends in respect of all over accurate thickness, straightening and alignment, facing of the glances. Complete job.

Fabrication providing and fitting of C.I guide spider set with three legs complete comprising of one No. guide spider suitable for line shaft of size 70mm dia, three No. rubber pads and slotted CS M12 x 20mm screw, one No. rubber bearing, one No. cover for rubber bearing , bearing screws and washers. Complete job.

Repair/reconditioning of AISI 410-SS muff coupling along with its top & bottom nuts by way of rebuilding at old worn out portions with re-metalling by using special S.S. welding electrodes, then turning, finishing to true required size and rethreading both the nuts required portion of the coupling, finishing of all the surfaces of nuts and muff coupling for proper fitment along with rebuilding of key ways.

Fabrication and fitting at site line shaft 70mm x 2180 mm long made of SS AISI- 410 grade duly machined and finished to size along with machining of keyways of size 90 mm x 20 mm x 12 mm on either side for fitment of muff couplings. Complete job

Assembling of each column one by one with 70 mm shaft, 200mm internal tube and 500 mm external pipe in sequence while lowering in the respective pit along with assembled bowl assembly. This includes fitting, lowering of line shafts, guide spiders, muff couplings, top shaft, tension tube, defector tube, joining of discharge surging head with delivery line 500 mm dia. along with providing and fitting of relevant jointing material i.e. fire fly sheet, graphite packing grease packing, 19 mm size nuts, bolts, washer, fitting and tightening after complete alignment, leveling etc.

Testing of pumping unit which includes installation of 300 KW, 400 HP, 6.6 KV, solid shaft BHEL make HT motor on the skirt and its alignment with respective pump half coupling, re-connection of dismantled cable connections of 6.6 KV, 3- phase to rotor, stator, slipping assembly, liquid rotor starter trifurcated sealing box and space heater, cleaning of all carbon brushes, connecting of motor half coupling with pump half coupling, making all connections, checking for proper alignments and adjustment and testing of pumping unit on no load and full load for its proper operation.

HITECH MECHNICALS

M.S J K HYDRAULIC ENGGG AND FABRICATOR WORKS