Modification and fabrication of various SS316L pipeline associated with hook up of new IAT during ATA 2025 in SAP, FACT-CD

Modification and fabrication of various SS316L pipeline associated with hook up of new IAT during ATA 2025 in SAP, FACT-CD.

Modification / Fabrication of pipeline and fitting with SS 316 L material associated to new IAT hook up, size varies from 20 NB to 700 NB. Fabrication of new pipelines / Modification in existing pipelines & fittings etc. in connection with new IAT hook up with SS 316 L material to match the site condition. The list of existing acid pipelines in connection with hook up for new IAT are as follows: 1. 700NB Pump to PHEs ,OUT header. (Modification/Rerouting) 2. 300NB Pump dischage line to OUT header. (Modification/Rerouting) 3. 700NB PHEs to IAT, IN header. (Modification/Rerouting) 4. 400NB IN header to Acid lnlet Nozzle of IAT. (Modification/Rerouting) 5. 250NB acid line from ADT to IAT. (Modification/Rerouting) 6. 100NB pressure balance line from pump tank to IAT. (Modification/Rerouting) 7.100NB over flow line from IN header to FAT pump tank . (Modification/Rerouting) 8. 100NB Drain line connection from pump tank to main header. (New fabrication) 9. 50NB dilution water connection from existing line. (New fabrication) 10. 25NB Pressure drop line at various points of IAT (New fabrication) Make necessary site arrangements for this work like scoffilding / temporary support for cutting / welding / dismantling the pipes at all elevations of old IAT and pump tank. After dismantling, modifications shall be done on the above mentioned pipelines as per the instructions from Engineer -in charge so as to suit the site conditions of new IAT. For fabrication of new lines in addition to the above lines/ modification of dismantled pipelines if any, required materials shall be transported from the store to site. The required Tees/ Specials fittings shall also be fabricated to suit the site conditions in SS 316L material.The existing / new pipes (SS 316L) shall be cut by a plasma cutting Machine, as per instructions to avoid wastage. Pipe ends shall be ground properly with suitable bevel/single Vee. The pipes / fittings / Elbow/ Tees shall be fabricated by TIG Welding only. All welding joints shall be 100% DP tested.

Erection of fabricated SS 316 L Pipe and Fittings of Size 20 NB to 700 NB Make necessary site arrangements for the work like scoffilding/temporary support to facilitate the erection works. The modified / newly fabricated SS 316 L pipe lines with fittings shall be transported to site. The SS 316 L pipes with fittings shall be erected / fixed in position at all elevations of new IAT and pump tank with proper gaskets and fasteners/welding pipe joint at site. Flange joints shall be tightened properly to avoid any leakage. Temporary supports shall be provided as required. The route/orientation of the pipelines shall be as per approved drawings/site instructions. Pipelines shall be erected along suitable path as per site conditions and necessary supports shall be provided if required. Any pipelines joint requires welding at site shall be done by TIG welding only after proper bevelling of joints. Any rework required to ensure smooth erection of the pipelines shall be done as required. All welding joints shall be 100% DP tested. The pipelines shall be erected without any strain. Erection and fixing of valves, control valves, flow meters etc. along with the piping with proper gaskets and bolts as per drawing/ site instructions is under the scope of contractor. After complete erection entire pipeline circuit shall be successfully leak tested. Site shall be cleared off scrap, unused pipes shall be neatly stacked in the area earmarked.

Fabrication of stub end rings from SS 316L Plates, size 25 NB to 400 NB. The required stub end rings [size25 NB to 400 NB] shall be marked and cut from SS 316L plates [8 to 12mm thick for SS316L using plasma cutting machine. The rings shall be transported to FACT CD work shop for final machining and back to site. Ring edges shall be ground properly and take suitable bevel / single Vee.12/10 mm scrap SS 316L plates shall be made use for cutting stub ends.

Fabrication and Erection of Pipeline Supports Collection of required materials from FACT -CD stores / plant area and transport to the work site at SA Plant. New structural supports for pipeliens/pipe bridges/ saddle supports etc shall be fabricated and erected at site as per relevant drawing/ instruction of the officer - in -charge to meet site requirement.

PAREETH V V (BID ID -3167689)

M A ALI (BID ID -3167380)

M A Shamsudeen (BID ID -3167398)

MADONNA INDUSTRIES (BID ID -3163462)

MBM ENGG WORKS (BID ID -3166144)