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| 1 | Scafolding for various miscelleneous jobs in & around H2S Generation & Recovery Unit |
| 2 | Removal of old cladding & insulation |
| 3 | Application of new insulaiton & fixing of cladding sheet to avoid water entry |
| 4 | Replacement of cold insulation material including cladding |
| 5 | Mechanical cleaning of pipes for inspection & testing. |
| 6 | Thickness survey by ultrasonic technique |
| 7 | Painting of pipelines |
| 8 | External cleaning & Painting of structures, tanks & vessels |
| 9 | Flange joints maintenance |
| 10 | Insertion of blind spades & additional gasket between flanges for isolation of pipe lines |
| 11 | Removal of blind spade including replacement of old gasket & tightening of flanges for normalization of pipe lines |
| 12 | Providing of regular blinds for pipe line flanges |
| 13 | Removal of regular blinds for pipe line flanges |
| 14 | Dropping of Double Disc gate Valves, Plug Valves, Gate Valves, NRVs, PSVs etc., |
| 15 | Fixing of Double Disc gate Valves, Plug Valves, Gate Valves, NRVs, PSVs etc., |
| 16 | Replacement of lubricating oil in pumps, compressors and other equipment |
| 17 | Replacement of gland pickings of valves & pumps |
| 18 | Online servicing of DD Valves / gate valves/ globe valves which are hard to operate / partially opening -closing |
| 19 | Online servicing of DD valves which are leaking by online tightening of fasteners etc., |
| 20 | Servicing of DD Valve, Globe Valve, gate Valve, PSVs followed by hydro test / calibration |
| 21 | Replacement of protection sleeve of H2S Compressor |
| 22 | Dropping of Inlet and outlet valves of H2S compressor including connected spools. |
| 23 | Servicing of Inlet and Outlet Valves of H2S Compressors by lapping & Replacement of parts. |
| 24 | Fixing of Inlet & outlet valves of H2S Compressor including gaskets & connected spools. |
| 25 | Dismantling of gland stuffing box including its packings of H2S Compressor |
| 26 | Servicing of gland packing stuffing box holders by lapping to ensure zero leak. |
| 27 | Assembly of gland stuffing box including its packings of H2S Compressor |
| 28 | Dismantling & cleaning of H2S Compressor Piston-Cylinder assembly for inspection & maintenance compressor |
| 29 | Boxing up of H2S Compressor Piston-Cylinder assemblyafter inspection & replacement of damaged parts |
| 30 | Replacement of H2S Compressor cylinder liners including O rings (Liner set (3 Nos) + O ring set = 1 set) |
| 31 | Cleaning of H2S Compressor cooling water jacket using HP nitrogen, high pressure water jet etc., |
| 32 | Chemical cleaning of Compressor cooling water jacket. |
| 33 | Overhauling of H2S Compressor drive - crankshaft assembly including bearings and crosshead. |
| 34 | Dismantling, hydro testing, repair and assembly of H2S Compressor intercooler / after cooler / moisture separator |
| 35 | Replacement of belts of H2S compressor followed by alignment |
| 36 | Servicing of Rotory valve including drive mechanism gear box of recovery unit |
| 37 | Dismantling of RCC foundation of equipments / floor by chiseling, chipping and core cutting as per requirement |
| 38 | RCC work for preparation of foundation / floor / columns by RCC including reinforcements liked torred steel rods etc., as per requirement |
| 39 | Removal of sand / soil from drain header trenches for inspection of drain header |
| 40 | Filling of drain header trenches with dry sand / other filler material as per requirement |
| 41 | Shifting of new plates and structural steel from DPS / sectional stores to work location and scrap from work location to stores / scrap yard |
| 42 | Cutting of plates to required size and bending to suitable profile |
| 43 | Removal of old plates by cutting and shifting to scrap yard and edge preparation of shell plates for welding with new plates. |
| 44 | Fit up of bent plates after edge preparation by rigging to tank / vessel |
| 45 | Butt / Lap welding of plates upto 10 mm thickness for repair & replacement of damaged corroded plates of tanks |
| 46 | Replacement of pipelines by cutting & welding of CS seamless /ERW pipes and fittings with schedule upto 80. |
| 47 | Replacement of pipelines by cutting & welding of SS pipes and fittings with schedule upto 40. |
| 48 | Handling of pipes wherever exceeds 1m length for welding |
| 49 | Overhauling of burner assembly including cam mechanism of dampener & burner fan |
| 50 | Removal of old existing structures by cutting and retrieving the useful portions by cutting & grinding |
| 51 | Fabrication of new structures including erection / repair of old structural elements like angles, plates, structural pipes, channels, beams, columns, grills & gratings etc., |
| 52 | Fabrication of new SS casing for exhaust fan of recovery unit followed by its replacement and trial run of fan to evaluate its performance. |
| 53 | Welding of SS plates upto 4 mm thick for repair / fabrication of ducts, structures and expansion bellows including cutting and bending of plates into required profile. |
| 54 | Decoupling of equipment, Inspection of coupling & pulley & alignment of equipment with motor |
| 55 | Complete overhauling of centrifugal pump up to 15HP (Horizontal/vertical) |
| 56 | Servicing of mechanical seal of centrifugal pump (up to 15 HP), back pull out type, fitted with singlemechanical seals |
| 57 | Complete overhauling of pumps below 2.5 KW |
| 58 | Overhauling of atomiser in recovery unit |
| 59 | Overhauling of delivery fan and exhaust fans |
