Indian Oil Corporation Limited Tender

MAINTENANCE OF VESSEL/ COLUMN The job includes blinding/ de-blinding, scaffolding works wherever required, hose connections for steaming, water flushing, air flushing, and entry permit of vessel. Opening of manholes, hand holes, vent etc. providing scaffolding inside/ outside the vessel wherever required for cleaning and inspection. Thorough cleaning of internal surface and fittings, removal and refitting of components, strainers after cleaning. Removal, reloading/ replacement of activated charcoal, raching rings etc. including transportation of material and disposal of the refusal and minor repairs like weld build up of the scarred portion/ pitted area wherever required etc. gasket cutting at the required sizes from gasket sheet and replacing the same including cleaning of joint surface. Final blinding / de-blinding, boxing up and other necessary piping connections, hydraulic testing, hot bolting of all joints during hot circulation as per requirement and as instructed by Engineer-in-Charge (area of shell internal surface and trays/ baffles top and bottom to be measured separately). Note: Tray and packing related jobs shall be paid extra.

NOTE:- ====== A)Tray & packing related jobs shall be paid extra. B)Above surface area is approximate. Actual payment will be made as per site measurement.

HANDLING OF TRAYS/ PACKING RINGS/ STRUCTURED PACKING The job includes getting the materials issued from stores, transportation to work site, mock up assembly and marking of individual elements at site, removal of tray deck plates, down comer, seal pan, packing rings etc. by debolting cutting or by any other means without damaging the unit, lowering down them to ground and handling, placing, aligning and fixing with proper gaskets of all components of trays, down comer, seal pan, packing rings etc. with all consumables, tools, manpower to the entire satisfaction of Engineer-in-Charge.

Removal of packing rings

Removal of trays/ down commer / Structured packing

Installation of packing rings

Installation of pkg. trays /down commer/ Structured packing

WELD DEPOSIT ON PITTED SURFACE Grinding / cleaning on pitted / corroded area and filling the pitted surface by weld deposit and grinding / smoothening the surface as required and directed by the Engineer-in-Charge.

CS weld deposit for vessel / heat exchanger / column etc. (upto 2.5mm depth)

SS weld deposit (upto 2.5mm depth)

STRIP LINING OF COLUMN, VESSEL The job includes removal of old strips and getting the material issued transportation to work and handling at site, fabrication of strips by cutting, drilling or by any other means to required sizes and bending to proper shape to suit the curvature of the vessel / column, edge preparation etc. cleaning and surface preparation of the shell, grinding weld build up on the pitted area, fixing and welding of the strips, D.P. testing of all weld joints and pneumatic testing of strips into segment of bridges (25mm x 10mm) at a pressure of 0.2 kg / sq. cm. the job also includes scope of scaffolding, with all consumables and complete in all respect ready for commissioning as directed by Engineer-in-Charge. The length of the strip selected in the range of 600 to 1500 mm and width of 150 mm or less to suit the contour requirement. 10-mm drill holes to be made at a gap of 150 mm on the centreline of each strip which are to be plug welded. Three bead fillet butt method to be used for strip lining. Lining materials will be of 2 to 3 mm thick.

S.S. Lining

Monel lining

SS PLATE CUTTING Cutting of SS plate by electric/ grinding or any other means including preheating wherever required as per direction of the Engineer-in-Charge according to suitability including transportation from stores to site with supply of all tools, tackles, consumables, equipment, labour etc.

3mm thick

5mm thick

10mm thick

BUFFING OF WELD JOINTS Job involves buffing and cleaning of total weld area of the vessel / column etc. using power brush. The job has to be completed in all respect to the entire satisfaction of the Engineer-in-Charge (each length of buffing will be up to width of 150 mm).

B FURNACE JOBS

OPENING & BOXING UP OF FURNACE HEADER BOX COVERS, FURNACE COVERS ETC. Opening of header box covers by debolting, cleaning of all bends, opening of header plugs / furnace covers etc. and finally boxing up with proper gasket, packing, replacing defective bolt-nuts to ensure zero leak of joints and to facilitate inspection of bends / plugs etc. including minor repair of covers and hinges if any, replacement of defective header plugs, cleaning / lapping of header plugs etc. complete as per the directions and to the entire satisfaction of the Engineer-in-Charge. NOTE: Since Lumpsum unit is not available in SAP, hence for estimate unit is to be taken as each.

Furnace manway cover/ convection door

REVISIONING OF BURNER BLOCK INCLUDING AIR REGISTER / DAMPER Removal of auxiliary connections to the burner, dropping of burner block and cleaning for preliminary inspection of burner assembly, revisioning of primary and secondary air registers, straightening of flapper if required and checking free movement of the system, cleaning the burners (oil, gas, pilot burners) by oil, steam etc., greasing and assembling the parts and fixing back to proper places and finally boxing up of total assembly and its auxiliary connections with proper alignment including alignment of burner assembly, erection and removal of scaffolding and other enabling arrangements for the job.

Burner block of weight upto 0.50 MT

REPLACEMENT OF THERMOCOUPLE Removal of damaged thermocouple, surface preparation, fit up and welding of new thermocouple by tig welding using Inconel E-521 including DP Test, erection and removal of scaffolding and other enabling arrangements.

REPLACEMENT OF TUBE HANGERS & LOCKING BARS Debolting and removal of existing wall / roof tube hangers / locking bars (including hot job if any) and fixing back the repaired / new hangers in position as per the direction of the Engineer-in-Charge including alignment and replacement of locking pin, tools, tackles, consumables etc. and complete in all respect.

Replacement of tube hangers

REPLACEMENT OF FURNACE TUBE GUIDES, SLEEVES, CLAMPS ETC. Opening of the guide, sleeve or clamps of the furnace tubes, cleaning and refixing to the original position including fixing of the same with a new one as per the directions and to the entire satisfaction of the Engineer-in-Charge.

REVISIONING OF BURNER ASSEMBLY Opening of the burner assembly from its original position, lowering down to a safe place, dismantling the assembly, cleaning the burners (oil, gas, pilot burners) by oil, steam etc., greasing and assembling the parts and fixing back to proper places as directed by the Engineer-in-Charge including alignment of burner, erection and removal of scaffolding and other enabling arrangements.

REVISIONING OF DAMPER PLATE Revisioning of damper plates i.e., cleaning the damper assembly, minor repair / replacement jobs as per inspection recommendation, greasing the bushes fully, damper ropes completely and adjusting the damper rope tension to match the existing calibration as per the direction of Engineer-in-charge.

CLEANING OF ALL RADIATION TUBES, BENDS, HANGERS, MANUALLY BY USING WIRE BRUSH SCRAPPER ETC. Cleaning of all radiation tubes, bends, hangers, manually by using wire brush scrapper etc. with all manpower, consumables, tools/ tackles and offering for checking and to the complete satisfaction and direction of the Engineer-in-charge.

REVISIONING OF EXPLOSION DOOR Revisioning of explosion door opening of expansion/ inspection doors, inspection/ revisioning and removal of refractory/ provision of lugs by welding, if required, minor repairs, weld build up, etc. if required, as per the direction of the engineer-in-charge and fixing back in position.

REVISIONING OF PEEP HOLES Opening of peep holes, cleaning of glass, inspection/ revisioning minor repairs, weld build up, replacement of view glass etc. if required as per the instruction of Engineer-in-charge and fixing back in position properly to the satisfaction of Engineer-in-charge.

FIXING OF LUGS Fabrication of CS / SS lugs by cutting, bending etc. from CS / SS annealed wire etc. (supplied by owner free of cost) and fixing the same by welding on the fabricated panel segments for holding the castable refractories including supply of labour, tools, tackles as per direction of the Engineer-in-Charge.

SS Lugs

DISMANTLING AND ERECTION OF PANEL / ROOF SEGMENTS IN BOILER / FURNACE ETC. Removal of existing panel / roof, segments along with insulation / refractory materials, after opening all the connecting nozzles / flanges etc. by debolting / cutting or any other suitable means without damaging the remaining portion of the furnace / boiler and lowering down to the ground including erection of scaffolding (if any), any fixing back in original position. The prefabricated and duly refractory lined panel / roof segments either old or new one by lifting, laying, aligning properly welding of plates with beams, channels etc. bolting up with proper gaskets and fixing of connecting nozzles / flanges etc. complete in all respect including supply of all consumables, tools, tackles, lifting equipment, crane, labour etc. as per direction of the Engineer-in-Charge.

FABRICATION OF PANEL/ROOF SEGMENTS IN FURNACE/BOILERS ETC. The job includes getting the material issued, transportation to work site and handling at site, fabrication including cleaning, cutting to size, bending, cutting of holes, aligning, edge preparing, fitting and welding of structural, plates by continuous fillet weld, bolting etc. with supply of all consumables, tools, labour as per drawing, specification and instruction of Engineer-in-Charge.

HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations.

80 mm

150 mm

WATER FLUSHING OF FURNACE (CONVECTION ZONE) Water washing of convection zone studded tubes by using DM water jet with caustic solution after completely covering all other zones by means of tarpauline and by providing proper drainage so as to avoid any damage to the refractory and to guide the water outside and offering for inspection at two stages i.e. just after provision of tarpauline, hose pipes, consumables, tools and tackles, etc. and removal of the covers after cleaning job is over and to the complete satisfaction of the engineer-in-charge (tarpauline will be supplied by IOCL as free issue material and scaffolding is in the scope of contractor). Note: If only scaffolding done for the purpose of inspection, civil job, then 60% of the rate will be paid.

Approx. area of convection section 25 M X 1.8 M.

STAINLESS STEEL PIPING (GR. SS 400) JOINTS Transportation of all piping items from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes at ground level i.e. upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches; anchoring wherever required, connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings, including preparation of small bore isometric upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction including supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables a nd labour etc. to complete the work in all respects in a workman like manner including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the dire ctions of the Engineer- in-Charge. NOTE: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. NOTE: For piping where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%. NOTE: Payment of tapping points will also be made extra on joint basis, as the measurement is on joint basis.

"150 mm NB, Schedule more than 40 but upto 80"

STEEL SCAFFLODING MATERIALS IN CONTRACTOR'S SCOPE The job includes transportation of scaffolding materials in contractor's scope of supply, erection of scaffolding at site covering the areas specified including providing vertical posts of pipes at inter distance of 1.5 m and horizontal numbers at a inter distance of 0.5 to 0.75 m, providing tie rods at corners to give sufficient strength to the structure, placing the wooden / steel planks / FRP gratings on top for making sufficient area. Dismantling scaffolding after completion of job and returning the scaffolding material to specified place including all tools, tackles, consumables, labours and contractor's supervision as directed by the Engineer-in-Charge 1. For measurement in SQM: 2 (length + width) X height area covered by the scaffolding is to be taken. 2. Scaffolding measurement to be done by breaking the height into parts as per height slab mentioned below and adopting respective rates against mentioned height slabs.

Volumetric (for inside furnace/ vessel etc. (For volumetric scaffolding above 10Mtr and upto 20Mtr. rates to be escalated by 20%. For above 20 Mtr. but upto 30 Mtr. rates to be escalated by 30%. For above 30 Mtr but upto 40 Mtr. rates to be escalated by 40%. For above 40 Mtr but upto 50 Mtr. rates to be esc alated by 50%. respectively.)

HYDRO-TESTING OF HYDRO-CARBON & SUPER HEATER COILS Job involves making all necessary arrangements for hydro-test of hydrocarbon coil, super heater coil etc. including blinding and de- blinding of the flanged joints connected with the respective passes, connection of water hose, testing pump etc. pressurising the system as per the direction of engineer-in-charge and offering for inspection (IBR/ Non-IBR) job also includes all auxiliary arrangements like erection and removal of scaffolding and depressurisation/ draining of system after hydro-test. Note: 1. In case of any leakage observed during hydrotest rehydrotesting shall be carried out after completion of repair job etc. at no extra cost. If no hot job is to be carried out. In case of hot repair 25% extra shall be paid for re-hydrotest. 2. In case of hydrotest for leakage detection done, 50% of respective rate shall be given. 3. The necessary co-ordination with IBR authorities is under owner's scope.

Upto the length of 20 M.

Upto the length of 10 M.

Upto the length of 7 M.

DECHOKING OF CW LINE / PRODUCT LINE Dechoking of CW line/product line by poking rod inside or any other Mech. means. This include opening/ removal of spool piece of piping to be dechoked, removal of sludge/ hard deposits etc. by poking rod/ dechoking by steam or any other mechanical means and fixing / erecting the line in position after dechoking, including cutting and fixing suitable size.

Dia ½" to 1"

Dia 1½"

Dia 2"

Dia 4"

Dia 6"

Dia 8"

STAINLESS STEEL PIPING (GR. SS 300) JOINTS Transportation of all piping items from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes at ground level i.e. upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches; anchoring wherever required, connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings, including preparation of small bore isometric upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction including supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables a nd labour etc. to complete the work in all respects in a workman like manner including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the dire ctions of the Engineer- in-Charge. NOTE: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. NOTE: For piping where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%. NOTE: Payment of tapping points will also be made extra on joint basis, as the measurement is on joint basis.

"200 mm NB, Schedule above 80 but upto 120"

C VESSEL & TANK JOBS

MAINTENANCE OF VESSEL/ COLUMN The job includes blinding/ de-blinding, scaffolding works wherever required, hose connections for steaming, water flushing, air flushing, and entry permit of vessel. Opening of manholes, hand holes, vent etc. providing scaffolding inside/ outside the vessel wherever required for cleaning and inspection. Thorough cleaning of internal surface and fittings, removal and refitting of components, strainers after cleaning. Removal, reloading/ replacement of activated charcoal, raching rings etc. including transportation of material and disposal of the refusal and minor repairs like weld build up of the scarred portion/ pitted area wherever required etc. gasket cutting at the required sizes from gasket sheet and replacing the same including cleaning of joint surface. Final blinding / de-blinding, boxing up and other necessary piping connections, hydraulic testing, hot bolting of all joints during hot circulation as per requirement and as instructed by Engineer-in-Charge (area of shell internal surface and trays/ baffles top and bottom to be measured separately). Note: Tray and packing related jobs shall be paid extra.

Note:- ====== 1. Tray & packing related jobs shall be paid extra." 2.Above surface area is approximate.Actual payment will be made as per site measurement.

BUFFING OF WELD JOINTS Job involves buffing and cleaning of total weld area of the vessel / column etc. using power brush. The job has to be completed in all respect to the entire satisfaction of the Engineer-in-Charge (each length of buffing will be up to width of 150 mm).

HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations.

Vessel/ Bullet

DEMISTER PAD REPLACEMENTS Removal of existing demister pad with frame after debolting / cold - hot cutting insertion and fixing of new demister pad with frame as per instruction of the Engineer-in-Charge. It includes transportation of new pad to the work site, depositing the old pad at owner's storage point, minor hot job if any for replacement as per site conditions necessary enabling arrangements.

Demister size upto 1m dia

Demister size above 1m and below 2m dia

Demister size above 2m and below 3m dia

Demister size above 3m and below 4m dia

Demister size above 4m dia

DISMANTLING OF EQUIPMENT The job involves removal of existing equipment along with base frame/ support plate, insulation etc. unfastening, dismantling and transporting of all types of equipment from all elevations such as vessels, heat-exchangers, pumps, mixers etc. with all care to avoid any damage to equipment to the scrapyard/ project stores/ main stores/ designated place with all connected structural, various fittings, instruments installed on the equipment. Job also includes supplying of all types of tools, tackles, lifting arrangements, cranes, tractor trolley and equipment, machineries all consumables and labour to complete the job in a workman like manner, erection and removal of steel scaffolding wherever required, area preparation for hot job and area cleaning after completion of work including blinding, deblinding, removal of insulation, gas cutting of bolts, chipping of foundation, flushing wherever required. All jobs are to be carried out as per the instruction and to the full satisfaction of the Engineer-in-Charge.

INSTALLATION OF VESSELS / COLUMNS / DRUMS / FILTERS UPTO 5 MT Transportation of vessel/ columns/ filters/ drums etc. from owner's storage point to worksite, assembly of parts, sub-assemblies (including internals), erection at all elevations, aligning, tightening of bolts, grouting, cleaning, hydrotesting and flushing by water, draining, drying by compressed air and installation of all mountings and completing the works in all respects including earthing protection by way of fixing strips and electrodes as per drawings and specifications. Job also includes supplying of all types of tools, tackles, lifting arrangements, cranes, tractor trolley and equipment, machineries all consumables and labour to complete the job in a workman like manner, erection and removal of steel scaffolding wherever required, area preparation for hot job and area cleaning after completion of work including blinding, deblinding, removal of insulation, gas cutting of bolts, chipping of foundation, flushing wherever required. All jobs are to be carried out as per the instruction and to the full satisfaction of the Engineer-in-Charge.

SS PLATE CUTTING Cutting of SS plate by electric/ grinding or any other means including preheating wherever required as per direction of the Engineer-in-Charge according to suitability including transportation from stores to site with supply of all tools, tackles, consumables, equipment, labour etc.

6mm thick

FABRICATION OF DEMISTER PAD The job involves transportation of wire mesh rolls and other required materials from store to worksite and fabrication of demister pad by packing of wire mesh roll in the frame of demister pad, cutting of wire to proper size, fixing and binding the pad, fixing the assy in position as per the instruction of engineer-in-charge. The job also includes minor weld jobs required for fabrication of demister pad. Material is in IOCL scope of supply.

INSTALLATION OF VESSELS / COLUMNS / DRUMS / FILTERS UPTO 5 MT Transportation of vessel/ columns/ filters/ drums etc. from owner's storage point to worksite, assembly of parts, sub-assemblies (including internals), erection at all elevations, aligning, tightening of bolts, grouting, cleaning, hydrotesting and flushing by water, draining, drying by compressed air and installation of all mountings and completing the works in all respects including earthing protection by way of fixing strips and electrodes as per drawings and specifications. Job also includes supplying of all types of tools, tackles, lifting arrangements, cranes, tractor trolley and equipment, machineries all consumables and labour to complete the job in a workman like manner, erection and removal of steel scaffolding wherever required, area preparation for hot job and area cleaning after completion of work including blinding, deblinding, removal of insulation, gas cutting of bolts, chipping of foundation, flushing wherever required. All jobs are to be carried out as per the instruction and to the full satisfaction of the Engineer-in-Charge.

INSTALLATION OF VESSELS/ COLUMNS/ DRUMS/ FILTERS MORE THAN 5 MT AND UPTO 10 MT Transportation of vessel/ columns/ filters/ drums etc. from owner's storage point to worksite, assembly of parts, sub-assemblies (including internals), erection at all elevations, aligning, tightening of bolts, grouting, cleaning, hydrotesting and flushing by water, draining, drying by compressed air and installation of all mountings and completing the works in all respects including earthing protection by way of fixing strips and electrodes as per drawings and specifications. Job also includes supplying of all types of tools, tackles, lifting arrangements, cranes, tractor trolley and equipment, machineries all consumables and labour to complete the job in a workman like manner, erection and removal of steel scaffolding wherever required, area preparation for hot job and area cleaning after completion of work including blinding, deblinding, removal of insulation, gas cutting of bolts, chipping of foundation, flushing wherever required. All jobs are to be carried out as per the instruction and to the full satisfaction of the Engineer-in-Charge.

D MISC PIPING & OTHER JOBS

DISMANTLING OF CARBON STEEL/ ALLOY STEEL PIPING BY HOT WORK (INSULATED/ UNINSULATED) Dismantling and removal of above ground, overhead under ground (upto depth of 5m) redundant, steam traced pipelines, insulated and u ninsulated, of carbon steel / alloy steel by gas cutting or by grinder from various locations such as pipe racks, columns, pump house, vessels, heaters, heat exchangers, desalter etc. upto a height of 5 meters including, removal of insulation material, all on line instruments, fittings, flanges, valves, vents, drains, branching etc.; lowering down the same to ground level with due care so that no other piping, equipment#s, machinery#s etc. is damaged; cutting into pieces if required; segregating for reclaiming useful fittings such as bends, flanges, valves, instruments etc. by unbolting, gas cutting, cold cutting etc.; transporting and stacking the salvageable useful materials to workshop / instrument workshop/ store or as per the direction of the Engineer-in-Charge and shifting the scrap pipes etc. to scrap yard or any other location within refinery premises and completing the job as per the instructions of Engineer-in-Charge. Job also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation, taking clearance for hot jobs, blinding and de-blinding, area cleaning after completion of work, flushing wherever required as directed by the Engineer-in-Charge. NOTE : 1. Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the d irections of the Engineer- in-Charge. 2. Salvaging of useful fitting from redundant pipe, if done, will be paid under separate item. 3. Civil works (excavation and back filling) for underground dismantling shall be paid under separate item from Civil SOR. Note: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

15 mm NB

20 mm NB

25 mm NB

40 mm NB

50 mm NB

80 mm NB

100 mm NB

150 mm NB

200 mm NB

250 mm NB

300 mm NB

350 mm NB

400 mm NB

450 mm NB

500 mm NB

600 mm NB

COLD CUTTING OF CARBON / ALLOY STEEL PIPE LINES (INSULATED / UNINSULATED) Cold cutting and removal of above ground/overhead/underground in tranches (upto 5 meters depth) insulated or uninsulated pipelines of carbon steel/ alloy steel/ and/or any other type from various location such as pipe racks, columns, pump house, vessels, heaters, heat exchangers, desalters etc. upto a height of 5 meters including removal of insulation materials, all on line instruments, fittings, flanges, valves, vents, drains, branching etc.; lowering down / lifting the same to ground level with due care so that no other piping, equipment#s, machinery#s etc. is damaged; cutting into pieces if required; segregating for reclaiming useful fittings such as bends, flanges, valves, instruments etc. by unbolting, gas cutting, cold cutting etc. transporting and stacking the salvageable useful materials to workshop / instrument workshop/ store or as per the direction of the Engineer-in-Charge and shifting the scrap pipes etc. to scrap yard or any other location within refinery premises all complete as per the instructions of Engineer-in-Charge.°° Job also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation, taking clearance for hot jobs, blinding and deblinding area cleaning after completion of work, flushing wherever required as directed by the Engineer-in-Charge. NOTE : 1. Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the d irections of the Engineer- in-Charge. 2. Salvaging of useful fitting from redundant pipe, if done, will be paid under separate item. 3. Civil works (excavation and back filling) for underground dismantling shall be paid under separate item from Civil SOR. Note: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

15 MM NB

20 MM NB

25 MM NB

40 MM NB

50 MM NB

80 MM NB

100 MM NB

150 MM NB

200 MM NB

250 MM NB

300 MM NB

350 MM NB

400 MM NB

450 MM NB

500 MM NB

FIXING / REMOVAL OF FLANGES / BLIND FLANGES OF RATING UPTO 300# Opening / fixing etc. of flanges / blind flanges / spool pieces at the two flange joint (rating upto 300#) as and when required for elbow reversing, wedge opening etc. or any other job including handling of flanges and preparation of gaskets from the sheet including tools and tackles, consumables, supervision etc. and as per direction of the Engineer-in-Charge.

15 mm

20 mm

25 mm

40 mm

50 mm

80 mm

100 mm

150 mm

200 mm

250 mm

300 mm

350 mm

400 mm

450 mm

500 mm

600 mm

FIXING / REMOVAL OF FLANGES / BLIND FLANGES OF RATING MORE THAN 300# AND UPTO 600# Opening / fixing etc. of flanges / blind flanges / spool pieces at the two flange joint (rating more than 300# and upto 600#) as and when required for elbow reversing, wedge opening etc. or any other job including handling of flanges and preparation of gaskets from the sheet including tools and tackles, consumables, supervision etc. and as per direction of the Engineer-in-Charge.

15 mm

20 mm

25 mm

40 mm

50 mm

80 mm

100 mm

150 mm

200 mm

250 mm

300 mm

350 mm

DISMANTLING OF STAINLESS STEEL PIPING BY HOT WORK (INSULATED / UNINSULATED) Dismantling and removal of above ground / overhead / underground in trenches (upto 5 m) redundant, steam traced pipelines, insulated and uninsulated of stainless steel by grinding / gouging / plasma cutting from various locations such as pipe racks, columns, pump house, vessels, heaters, heat exchangers, desalter etc. upto a height of 5 meters including removal of insulation materials all on line instruments, fittings, flanges, valves, vents, drains, branching etc.; lowering down the same to ground level with due care so that no other piping, equipment#s, machinery#s etc. is damaged; cutting into pieces if required; segregating for reclaiming useful fittings such as bends, flanges, valves, instruments etc. by unbolting, gas cutting, cold cutting etc.; transporting and stacking the salvageable useful materials to workshop / instrument workshop / store or as per the direction of the Engineer-in-Charge and shifting the scrap pipes etc. to scrap yard or any other location within refinery premises all complete as per the instructions of engineer in-charge. Job also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation, taking clearance for hot jobs, blinding and deblinding area cleaning after completion of work, flushing wherever required as directed by the Engineer-in-Charge. NOTE : 1. Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the d irections of the Engineer- in-Charge. 2. Salvaging of useful fitting from redundant pipe, if done, will be paid under separate item. 3. Civil works (excavation and back filling) for underground dismantling shall be paid under separate item from Civil SOR. Note: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

20 mm NB

25 mm NB

40 mm NB

50 mm NB

80 mm NB

100 mm NB

150 mm NB

200 mm NB

250 mm NB

CARBON STEEL PIPING JOINTS FOR HYDROCARBON SERVICE (WITH WELDING ELECTRODE E-6010 / E-7018) Transportation of all piping items from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes at ground level i.e. upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches; connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings, including preparation small bore isometric upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction including supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the dire ctions of the Engineer- in-Charge. NOTE: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. NOTE: For piping where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%. NOTE: Payment of tapping points will also be made extra on joint basis, as the measurement is on joint basis.

15 mm NB, Schedule upto 80

15 mm NB, Schedule above 80 but upto 160

20 mm NB, Schedule upto 80

20 mm NB, Schedule above 80 but upto 160

25 mm NB, Schedule upto 80

25 mm NB, Schedule above 80 but upto 160

40 mm NB, Schedule upto 80

40 mm NB, Schedule above 80 but upto 160

50 mm NB, Schedule more than 40 but upto 80

50 mm NB, Schedule above 80 but upto 160

80 mm NB, Schedule upto 40

80 mm NB, Schedule more than 40 but upto 80

80 mm NB, Schedule above 80 but upto 160

100 mm NB, Schedule upto 40

100 mm NB, Schedule more than 40 but upto 80

100 mm NB, Schedule above 80 but upto 160

150 mm NB, Schedule upto 40

150 mm NB, Schedule more than 40 but upto 80

150 mm NB, Schedule above 80 but upto 120

200 mm NB, Schedule above 20 but upto 40

200 mm NB, Schedule more than 40 but upto 80

200 mm NB, Schedule above 80 but upto 120

250 mm NB, Schedule above 20 but upto 40

250 mm NB, Schedule more than 40 but upto 80

250 mm NB, Schedule above 80 but upto 120

300 mm NB, Schedule upto 20

300 mm NB, Schedule above 20 but upto 40

300 mm NB, Schedule more than 40 but upto 80

350 mm NB, Schedule upto 20

350 mm NB, Schedule above 20 but upto 40

350 mm NB, Schedule more than 40 but upto 80

400 mm NB, Schedule upto 20

400 mm NB, Schedule above 20 but upto 40

450 mm NB, Schedule upto 20

450 mm NB, Schedule above 20 but upto 40

500 mm NB, Schedule upto 20

500 mm NB, Schedule above 20 but upto 40

600 mm NB, Schedule upto 20

600 mm NB, Schedule above 20 but upto 40

CS PPG JOINTS NHC ELECTD E-6013 Transportation of all piping items from owner's storage points to work site and/ or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes at ground level i.e. upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches; connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings, including preparation small bore isometric upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction including supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the dire ctions of the Engineer- in-Charge. NOTE: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. NOTE: For piping where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%. NOTE: Payment of tapping points will also be made extra on joint basis, as the measurement is on joint basis.

15 mm NB, Schedule upto 80

15 mm NB, Schedule above 80 but upto 160

20 mm NB, Schedule upto 80

20 mm NB, Schedule above 80 but upto 160

25 mm NB, Schedule upto 80

25 mm NB, Schedule above 80 but upto 160

40 mm NB, Schedule upto 80

40 mm NB, Schedule above 80 but upto 160

50 mm NB, Schedule more than 40 but upto 80

50 mm NB, Schedule above 80 but upto 160

80 mm NB, Schedule more than 40 but upto 80

80 mm NB, Schedule above 80 but upto 160

100 mm NB, Schedule upto 40

100 mm NB, Schedule more than 40 but upto 80

150 mm NB, Schedule upto 40

150 mm NB, Schedule more than 40 but upto 80

200 mm NB, Schedule above 20 but upto 40

200 mm NB, Schedule more than 40 but upto 80

250 mm NB, Schedule above 20 but upto 40

250 mm NB, Schedule more than 40 but upto 80

300 mm NB, Schedule above 20 but upto 40

300 mm NB, Schedule more than 40 but upto 80

400 mm NB, Schedule above 20 but upto 40

400 mm NB, Schedule more than 40 but upto 80

450 mm NB, Schedule above 20 but upto 40

450 mm NB, Schedule above 40 but upto 80

500 mm NB, Schedule above 20 but upto 40

500 mm NB, Schedule above 40 but upto 80

CARBON STEEL PIPING FOR NON-HYDROCARBON SERVICE (WITH WELDING ELECTRODE E-6013) Transportation of all piping items from owner's storage points to work site and / or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes at ground level i.e. upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches; anchoring wherever required, connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, reinforcement pads, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings including preparation of small bore isometrics upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction including supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects in a workman like manner including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the dire ctions of the Engineer- in-Charge. NOTE: For piping beyond 5 Mtr. elevation above and below ground piping and upto 10Mtr. rates is to be escalated by 20%. For more than 10 Mtr. but upto 15 Mtr. rates is to be escalated by 30%. For more than 15 Mtr but upto 20 Mtr. rates to be escalated by 40% respectively. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. NOTE: For piping where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%.

15 mm NB, Schedule upto 80

20 mm NB, Schedule upto 80

25 mm NB, Schedule upto 80

40 mm NB, Schedule upto 80

50 mm NB, Schedule more than 40 but upto 80

80 mm NB, Schedule upto 40

100 mm NB, Schedule upto 40

150 mm NB, Schedule upto 40

200 mm NB, Schedule above 20 but upto 40

250 mm NB, Schedule above 20 but upto 40

300 mm NB, Schedule above 20 but upto 40

350 mm NB, Schedule above 20 but upto 40

400 mm NB, Schedule above 20 but upto 40

HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations.

15 mm

20 mm

25 mm

40 mm

50 mm

80 mm

100 mm

150 mm

200 mm

250 mm

300 mm

350 mm

400 mm

450 mm

500 mm

WRAPPING & COATING OF VESSELS/ UNDERGROUND PIPING ETC. Providing wrapping and coating as per the specifications including supply of all materials, tools and tackles, etc. The detailed spe cification for wrapping and coating is as under: 1. The surface preparation of pipes shall be done by grit/ shot blast cleaning to Swedish standard SA-2. 2. The grit/ shot blasting operation shall be carried out in the day time. Blast cleaning operation shall not be under taken in humid condition. 3. Only approved quality grit/ shot shall be used for grit/ shot blasting. The grit/ shot used shall be dry and free form any other impurities. 4. The grit/ shot blasted surface shall have a shining and near white metal appearances. 5. After grit/ shot blast cleaning, the surface shall be dry brushed to remove deposits. 6. The grit/ shot blasted surface should be inspected by quality control/ Inspection agency of owner/ contractor. COATING SYSTEM Following steps shall be followed: 1. Application of one coat of primer. 2. Application of one coat of coal tar enamel. 3. Wrapping fibre glass. 4. Application of 2nd coat of coal tar enamel. 5. Wrapping of craft paper/ coal tar impregnated outer wrap. PRIMING 1. Single coat of coal tar primer shall be applied manually with good quality brushes. Following precautions shall be taken during application of primer. 2. Primer drum shall be inspected for manufacturing date batch No. etc. 3. Primer drum shall be rotated before opening for proper mixing. 4. Primer shall be applied within 12 hrs. of completion of sand blasting. 5. Primer shall be applied evenly all along the pipe surface. 6. Any holiday or bare pipe left over during priming shall be primed again. 7. Primer will not be applied during rainy/ moist weather. 8. After application of primer and before drying, adequate precaution shall be taken to avoid contact of dust/ sand etc. with primed surface. 9. Normal primer requires 1 hr. time for proper drying and becomes dead after 24 hrs. of its application. 10. Coating shall be completed within these limits failing which dead primer shall be cleaned and fresh primer shall be applied again. COATING AND WRAPPING i) When the priming coat has dried and the surface of the primed pipe has been cleaned preferably by clean white rags to remove the settled dust just preceding of the coating operation. The pipe shall be coated with hot application of one coat of coal tar enamel to give a minimum thickness of 2.5 mm and to be securely bonded to the primer. ii) The coal tar enamel shall be cut into lumps preferably at the storage place upon a clean platform with side boards and due care must always be exercised by the contractor to keep the broken enamel absolutely free form dirt, grass, water or any other foreign material up to the time when enamel is charged into the melting kettle. iii) The coal tar enamel shall be slowly heated on reduced fire and maintained to the even temperature recommended for application i.e. 220 deg. C to 240 deg. C. iv) Constant stirring shall be necessary in continuously operating melting kettles. v) Melting kettle should have proper insulation. vi) The melting kettle should be of movable type i.e. wheel mounted and have towing arrangement. vii) The melting kettle should be kept near the work site. However, in no case the molten enamel shall be carried in bucket for more than 50 meter distance. Viii) During pouring of molten enamel, fine wire mesh filter shall be used to avoid the flow of impurity/ dirt/ sand. ix) During temporary interruption of the work the temperature in the kettle not shall be reduced by at least 50 deg. C below the normal specified temperature. x) Any enamel heated to temperature in excess of the maximum allowable temperature shall be rejected and suitably disposed off by the contractor. xi) Melting kettles/ pots shall always be maintained clean and in good working order and must be cleaned whenever deposits form on the heating surface. xii) A uniform thickness of 2.5 mm of enamel shall be applied to the surface of the primed pipe. xiii) A uniform thickness of 2.5 mm of enamel shall be applied to the surface of the primed pipe. xiv) The enamel shall be then reinforced by a spirally wrapped fibre glass wrap, pulled and embedded into the hot coating with an over lapping of edges of the wrap not less than 1/2" and not more than 1" xv) This will be followed by another coat of hot coal tar enamel application with a uniform thickness of 1.5 mm followed by craft paper/ coal tar impregnated fibre glass covering. xvi The coating and wrapping must be absolutely free of wrinkles in the wrappers, pinholes, bubbles, holidays voids thin spots or foreign matter. xvii Rolls of wrapping material shall not be kept along the right of way and shall be stored properly and brought to site. xviii) Wrapping material shall be so hauled and handled as to prevent injury to the packages. xix) No packages shall be handled with hooks or thrown form trucks. xx) Any such material which shows evidence of deterioration due to weather or any other cause, shall be rejected. COATING THICKNESS Minimum thickness of first should be 2.5 mm whereas total thickness should be approx. 4.5 mm. TESTING Following testing shall be undertaken: I) Physical Inspection: All the coated surface shall be visually inspected and all the wrinkles, bubbles, lack of overlap etc. shall be marked for repair. Ii) Sound Test: The coating adhesion can be checked easily with small wooden hammer by soft striking on coated surface. Change in sound indicates coating defects and same can be checked there by peel test. iii) Peel Test: The field bond test for coal tar enamel adhesion shall be preformed at 50-80F normal operating temperature of steel piping. If the coating temperature is above 80 °F or below 50 deg. F, pour cold or hot water over the test area to adjust the enamel temperature within this range. Using a knife, heated if necessary make two parallel cuts through the coating about 4 inch in length and 3/4 inch apart. With the edge of knife blade cut under the enamel strip at one end and loosen the enamel form the pipe the full width of the strip for about a 1/2" place the knife blade under the loosened end and apply a slow, steady pull upward on enamel strip. iv) If the peel length exceeds 1/8" the test is a failure and two additional tests shall be made at two different locations on the same section. If the additional tests are satisfactory then the section shall be approved. If the either additional test fails, the pipe section shall be rejected. SPECIFICATION OF COAL TAR PRIMER The primer consists of processed coal tar pitch and refined coal tar oil suitably blended with a solvent without pigment or inert filler or other substances (to be applied cold) for brushing or spraying as liquid coat to the clean surface piping as provided for in AWWA specification C-203-73. The primer should have no tendency to settle down in the container and when applied without producing bubbles, becomes dry and hard to touch within specified time ensuring and effective bond between the metal pipe surface and the enamel coating. The main characteristics of the coal tap primer should be as follows: 1. Drying time to touch dry, at normal humidity at 32 deg. C is less than 1 hr. 2. Max Boiling point of solvent 25 deg. C. 3. Penetration of residue at 25 deg. C. 4. Softening point of residue (ASTM-D-36) 104 deg. C. 5. Flash point of (ASTM 1310) 37 deg. C. 6. Pigment 7. Solvent Benzol solvent or highly toxic volatile solvents excluded. Reputed Indian Supplier (for Coal Tar Enamel and Coal Tar Primer). i) M/s Shalimar Tar Products, Calcutta. ii) M/s Lloyd Insulation (India) Ltd., New Delhi. 2. SPECIFICATION FOR COAL TAR ENAMEL The enamel shall be a WWA coal enamel type-I conforming to AWWA standard, AWWA C-203-86. The enamel be composed of a specially processed coal tar type blended with an inert mineral filter, properly graded, cleaned, dust free and without asphalt of either petroleum or nature base, to be applied to a recommended temperature. The main characteristics of the enamel shall be as follows: S. No. Test Enamel Type - 1 Min Max. 1. Softening Point, ASTM-D-36 140 deg.C 116 deg. C 2. Filter(ash) ASTMD-71 25% 35% 3. Fineness fillet through 90% Through 200 mesh. ASTM-D-54G 3. SPECIFICATION OF FIBRE GLASS INNER WRAP The fibre glass inner wrap of high tensile long monofilament, chemically inert glass fibre in jack straces patterns mat reinforced by longitudinal continuous stands of glass fibre yarn blended with insoluble inert resinous binder compatible with hot coal tar enamel and should conform to the following specifications: Tensile Strength (transverse) Kg/cm 0.50 + 0.10 Weight 41gm/sq.m Reputed Indian Supplier for Fibre Glass paper and Kraft Paper: i) M/s united paper product, Saharanpur, U.P. ii) M/s FGP limited New Delhi. iii) Specification of craft paper. The craft paper shall be smooth bituminised to be supplied in rolls. The average weight of a composite bituminised craft paper shall be a minimum of 120 gms/sq. Meter. A negative weight tolerance upto 5% of the composite weight may be permitted at the discretion to the owner, (bituminised craft paper with average weight less than 120 gms/sq. Meter in not acceptable). The bituminised craft paper shall be composed of two layers of craft paper shall be composed of two layers of craft paper and each weighing not less than 45 gm/sq. Meter and laminated with a layer of bitumen approachments weight 50 gms/sq. M to have a proper bond between the two layer of paper. He bituminised craft paper for field application shall be able to resist penetration. Specific Gravity at 25 deg. C ASTM D-71 1.4 1.6 Penetration, ASTM-D-5 10 a) At 25 deg. C 100 gms. Weight 5 secs. High temperature test at 71 deg.C 1/32 (Sag O AWWA C-203. Sec. 2.8.9 Low temperature test at 23 deg. C (Cracking), AWWAC-203 sec. 2.8.10 Peel Test, AWWAC-203 sec. 2.8.11 No peeling Electrical Resistance test at 17000 Volts and low amperage (1.5 mm thickness) Other Requirements (For wrapping and coating) 1. Third party Inspection certificate for all materials by EIL/ DNV/ LRIS/ MECON or providing IOCL approved manufacturers test certificate shall be in contractors scope. 2. Holiday testing machine shall be arranged and provided by contractor. 3. Vendor to submit transportation and Handling procedure T avoid wrapping and coating of pipes. 4. Vendor to submit and Get quality assurance plan (QAP) for wrapping and coating approved by owner/ Inspector. 5. The wrapping and coating surface must have machine finish in workmanship. Note: Additional payment for earth excavation and wrapping coating will be made extra for underground piping.

50 mm NB

80 mm NB

100 mm NB

150 mm NB

200 mm NB

250 mm NB

300 mm NB