Tender For Alloy Steel Piping Jobs--Lumpsum jobscope Long Description: Following jobs scope, related to slurry pump piping modification, is part of lump sum scope: a. Alloy steel piping (up to 15mm thick piping) i. Butt welding (TIG Root using ER 80S B6 and final ARC using E8018-B6) – 190 inch dia ii. Butt Joint using Full TIG (using ER 80S B6) – 30 inch dia iii. Fillet welding (using ER 80S B6) – 50 inch dia b. Carbon steel piping: (up to 10mm thick piping) i. Butt welding (TIG Root using ER 70S2 and final ARC using E7018) – 200 inch dia c. Preheating and PWHT of AS piping: 270 inch dia (including hardness test) d. Radiography: 480 inch dia e. Copper slag blasting and zinc silicate primer coating: 25 m2 Note: 1. Note: For the subject line, realignment might be required at pump connection as per the OEM’s requirement, agency to closely co-ordinate with the OEM and rotary maintenance until final installation of the pump. 2. Any job done extra required for completion of the job, or as advised by job engineer to be claimed under unit rate item. 3. If in case the lump sum quantity (as mentioned above) is not exhausted, the balance quantity will be deducted from the lump sum amount as per line item rate. 4. Agency to note that radiography is required for pipe size up to 14” sch. 60. Agency to mobilize radiography source accordingly. All field joints radiography are to be carried out using closed proximity radiography only. 5. Preheating and PWHT of alloy steel piping has to be carried out as per attached advisory. 6. All alloy steel piping are having steam tracings. All steam tracings are to be re-used. Payment for steam tracing welding shall be compensated under unit rates. 7. DP Test for all the welding mentioned in the lump sum scope in already included. No separate payment shall be made for DP Test , Fillet joint CS (SMAW) upto 8m Long Description: CS fillet weld joints with electrical machineJob scope:1. Carry out isolation and preparatory works for obtaining Hot work permit such as isolation, blinding, flushing, and removal of insulation and all other preparatory works.2. Preparation for welding:Carry out cold/hot cutting and dismantling of old pipes / pipe fittings,providing Hook-ups/Tie-in/Additional piping, shifting material from issue points to site, erection, cutting, grinding, beveling, bending, laying of pipes and preparation of fit-ups3. Welding:Carry out welding of pipes, pipe fittings, stubs etc. as per Inspection.4. Testing and commissioning assistance: Carry out DP test and hydro testing of pipes of various sizes, thickness etc., capping vent drains, deblinding etc.Rate Payable: Per inch dia. of joint.Notes:1. All non-destructive testing of piping shall be as per EIL Standard specification 6501-6-44-16.2. Following items are paid separately as per applicable items in the tender: RF pad, corrosion pads, threaded joints, scaffolding, SR, hydrotesting, Valves replacement, Painting, Civil and Structural items.3. No separate payment shall be made for DP TEST as it is included in the job scope.4. Suitable electrodes shall be used as instructed by the Inspection/Job engineer.5. Welding machine and electrodes are in agencys scope.6. This rate is for upto 8mm pipe wall thickness. in case of variation in pipe wall thickness, payment shall be made on pro-rata basis.7. Spark Confinement for carrying out welding in the Unit/Pipetracks is in the scope of the agency and there will be no additional payment for it. Additional measures as advised by Job Engineer such as mud/ cement packing, covering of valves with fire retardant cloth will be paid separately.8. Blinding and deblinding required for the job will be paid separately as per applicable line item., Fillet Joint CS (TiG) upto 8mm Long Description: Fillet joint CS with TiG filler wire Job scope:1. Carry out isolation and preparatory works for obtaining Hot work permit such as isolation, blinding, flushing, and removal of insulation and all other preparatory works.2. Preparation for welding:Carry out cold/hot cutting and dismantling of old pipes / pipe fittings,providing Hook-ups/Tie-in/Additional piping, shifting material from issue points to site, erection, cutting, grinding, beveling, bending, laying of pipes and preparation of fit-ups3. Welding:Carry out welding of pipes, pipe fittings, stubs etc. as per Inspection IWL.4. Testing and commissioning assistance:Carry out DP test, hydro testing of pipes of various sizes, thickness etc., capping vent drains, deblinding etc.Rate Payable:Per inch dia. of joint.Notes:1. All non-destructive testing of piping shall be as per EIL Standard specification 6501-6-44-16.2. Following items are paid separately as per applicable items in the tender: RF pad, corrosion pads, threaded joints, scaffolding, SR, hydrotesting, Valves replacement, Painting, Civil and Structural items.3. No separate payment shall be made for DP TEST as it is included in the job scope.4. Suitable electrodes/filler wire shall be used as instructed by the Inspection/Job engineer.5. Welding machine and electrodes are in agencys scope6. This rate is for upto 8mm pipe wall thickness. In case of variation in pipe wall thickness, payment hsall be made on pro-rata basis.7. Spark Confinement for carrying out welding in the Unit/Pipetracks is in the scope of the agency and there will be no additional payment for it. Additional measures as advised by Job Engineer such as mud/ cement packing, covering of valves with fire retardant cloth will be paid separately.8. Blinding and deblinding required for the job will be paid separately as per applicable line item.
