Chennai Petroleum Corporation Limited Tender

Blinding & Deblinding - Size 2 inch dia. to 5 inch dia.

REMOVAL / INSTALLATION / REFIXING OF FLANGED VALVES The job includes removal of flanged valves at all grades & elevations by de-bolting / cold cutting / gas cutting and transportation of the valve to the maintenance valve shop or any other designated place inside the refinery premises for repair / disposal. The job also includes supplying of all types of tools & tackles, lifting arrangements like chain pulley blocks, dumping the generated scrap material to the designated area, all consumables and labour to complete the job in all respects.

Valve rating - 150# & 300#

Removal of valves - Size 2 inch dia. to 3 inch dia.

Removal of valves - Size 4 inch dia. to 6 inch dia.

Installation of Flanged valves (Other than safety valves) The job includes transportation of valves, gaskets, fasteners, etc., from the owner's storage point or valve maintenance shop, cleaning, checking, tightening the gland, greasing & freeing up etc., servicing of all the fasteners using oil, replacing with new fasteners wherever required, hydrotesting the valve if required, at the specified pressure at valve maintenance shop, installation of flanged valve at all heights & grades using proper gaskets & studs. The job also includes supplying of all types of tools & tackles, lifting arrangements like chain pulley blocks, dumping the generated scrap material to the designated area, all consumables and labour to complete the job in all respects.

Valve rating - 150# & 300#

Installation of valves - Size 2 inch dia. to 3 inch dia.

Installation of valves - Size 4 inch dia. to 6 inch dia.

Stainless Steel Piping Work - Aboveground The job includes transporation of all free issue materials from owner's storage point to work site, handling at site, cutting, bevelling, fabrication, laying, welding & erection of stainless steel piping above ground level at all locations, overhead, over sleepers, piperacks, crossovers, pipe sleeves, trenches, stand posts, connecting with equipments & nozzles, providing tappings from the existing pipelines at all grades & elevations including under road culverts. The piping job includes all modification and replacement jobs involving pipes & all types of fittings like elbows / tees / reducers / half coupling / full coupling, etc., all types of flanges like slip on / raised face, etc., all types of inline instruments like rotameter / pressure gauges / thermowells, etc., valves, expansion joints, steam traps, orifice assemblies, strainers, vents, drains, funnels, etc., of different schedules, pressure ratings and for various temperature applications. The piping job includes providing shoe supports, pads at support locations, reinforcement pads, etc., wherever required. The job includes flushing, preparing work area for executing hot work, bending to suit the contours wherever required, socket, fillet, butt welding using TIG welding process / manual arc welding process as required with relevant filler wires / electrodes as required, DPT wherever required, hydraulic / pneumatic test as per codes, specification, drawings and draining of water & drying with compressor air after hydrotest.

The job also includes supplying of all types of tools & tackles, lifting arrangements like chain pulley blocks, machineries, all consumables and labour to complete the job in all respects, returning back the unused materials to owner's storage point and dumping the generated scrap material to designated area as per EIC instructions. The rates for the following items shall be exclusive of blinding & deblinding, radiography, removal of old piping for replacement and erection & removal of scaffolding The rates for the following items shall be inclusive of cutting, fabrication, laying, erection, welding, providing shoe supports, pads, pads at support locations, flushing of the piping system, offering stagewise inspection, hydrotesting and draining / drying of the piping system. WITH CPCL SUPPLY OF FREE POWER & CONTRACTOR'S WELDING MACHINE

SOCKET WELDING - ALL ELEVATIONS - STAINLESS STEEL

Stainless Steel - Above ground Piping - Socket / fillet welding Joint using filler wires / electrodes of grades - ER / E - 308, 308H, 308L, 347 - With hydrotest

Stainless Steel - Above ground Piping - Socket / fillet welding Joint using filler wires / electrodes of grades - ER / E - 308, 308H, 308L, 347 - Without hydrotest

BUTT WELDING - UPTO 5 METRES FROM GROUND LEVEL - STAINLESS STEEL

Stainless Steel - Above ground Piping - Butt welding Joint using filler wire / electrodes of grades ER / E - 308, 308H, 308L, 347 - Upto 8.8 mm piping thickness - with hydrotest

Stainless Steel - Above ground Piping - Butt welding Joint using filler wire / electrodes of grades ER / E - 308, 308H, 308L, 347 - Upto 8.8 mm piping thickness - without hydrotest

BUTT WELDING PIPING AT ELEVATIONS -ABOVE 5 METRES & UPTO 12 METRES FROM GROUND LEVEL- STAINLESS STEEL

Stainless Steel - Above ground Piping - Butt welding Joint using filler wire / electrodes of grades ER / E - 308, 308H, 308L, 347 - Upto 8.8 mm piping thickness - with hydrotest

Stainless Steel - Above ground Piping - Butt welding Joint using filler wire / electrodes of grades ER / E - 308, 308H, 308L, 347 - Upto 8.8 mm piping thickness - without hydrotest

NOTE: (1) Thickness of piping for measurement shall be based on the relevant ANSI or equivalent standards (2) The finished weld joint elevation at site shall be taken as reference for measurement, wherever applicable. (3) The rates for socket & fillet welding in piping shall remain same for all thickness and elevations as per SOR. (4) Rate for weld joints of vents & drains shall be paid on actual measurement using the applicable SOR. (5) Fabrication & welding of pipe shoe supports & pad at support locations are included in SOR and will not be considered for measurement. (6) For scaffolding work wherever required, Scaffolding shall be provided by CPCL (7) For blinding & deblinding wherever involved, rates shall be paid separately as per unit rate SOR (8) Radiography of weld joints is not included in SOR and rate shall be as per unit rate SOR (9) During hydrotesting of the above piping jobs, some portions of the existing piping in the circuit required to be hydrotested depending on the blinding and the same is included in the applicable welding SOR.

Fabrication & erection of structurals: The job includes fabrication and erection of carbon steel structurals in position such as platforms, ladders, stairs, brackets, pipe supports, pipe shoe, using the structural materials like angles, flats, channels, beams, rounds, plates etc. at all grades & elevations. The job also includes transportation of the required structural materials from owner's storage point to worksite, cutting to the required size, bolting and / or welding of joints etc. as per drawings, specifications & instructions of EIC and preparing the area for hot work. The job also includes supplying of all types of tools & tackles, lifting arrangements like chain pulley blocks, machineries, all consumables and labour to complete the job in all respects, returning back the unused materials to owner's storage point and dumping the generated scrap material to designated area as per EIC instructions.

Fabrication and erection of structurals

RADIOGRAPHY The job includes performing radiography examination of welds on piping & all type of equipments as per relevant ASME / ASTM standards & as per CPCL specification CPCL-INSP-RAD-01 at all grades & elevations with film width not less than 4 inches. The job also includes supplying of radiation source camera, other machineries required, all consumables required for filming & developing, transportation of camera, etc., area preparation before starting the job, labour, supervision to complete the job in all respects including preparation of developing chemicals, developing the films & submission of films for inspection review. Note : (1) For pipe weld joints, nominal diameter of the pipe shall be taken for measurement.. (2)Payment shall not be permissible for repeated radiography for the same joints on repair work & poor radiography quality

Pipe weld joints - Upto 2" nominal dia