GAIL India Limited Tender

PART - A : PIPING

FABRICATION, ERECTION, INSTALLATION AND TESTING OF PIPING

Receiving and taking over of all Owner supplied materials from Owner's place(s) of issue, transportation including loading, unloading, handling from Owner's designated place(s) of issue to Contractor's own stock yard(s)/ work site(s)/ work shop(s) including arranging all necessary intermediate storage area(s) thereof, as required; supply of materials, equipment, consumables as defined in Contractor's scope of supply and their transportation to the work site(s), approval / statutory payment required for (if applicable); performing all above ground / buried / under pit piping fabrication works including cutting, edge preparation (inclusive of grinding the edges of pipes, fittings, flanges etc. to match with the matching edges of uneven/ different thickness wherever required), fit up, bending, pre-heating wherever required, welding, threading etc.; all types of inline and online instruments such as pressure/ thermal safety valves (other than those covered separately), fittings of all sizes i.e. elbows, reducers, tees, 'o'-lets, flanges, blind flanges, spectacle blinds, tapping's for pressure gauges, thermowells, hoses and hose couplings of all sizes, if applicable, vents and drains required for process and hydro testing purposes etc. including supply and fixing of all types of gaskets (including gaskets for RTJ flanges), bolts, studs and nuts of all sizes; carrying out non-destructive testing (excluding radiography covered subsequently in SOR) such as magnetic particle/ liquid penetration test etc. as required; cleaning and flushing by water/ compressed air, carrying out hydrostatic test, pneumatic test, valve functional test and any other type of testing as specified, de-pressurising, dewatering, drying by compressed air, if applicable; cutting/ rebeveling (as required), pre-commissioning and providing commissioning assistance to Client for process piping and commissioning of non-process piping, if applicable; clean-up and restoration of site, preparation of as-built drawings, documents and project records; transportation of surplus free issue materials to Owner's designated place(s); completing all works in all respects as per the AFC drawings, specifications, standards and other provisions of Contract and instruction of Engineer-in-Charge. NOTES : 1. All butt welded fittings end shall generally match with connecting pipe wall thickness. However, in case of mis-alignment, contractor shall have to do end preparation accordingly without any extra cost. 2. All couplings, nipples, plugs for nipple etc. as required for hydro test and other connections shall be supplied by contractor without any extra cost. 3. All Gaskets (with inner and outer SS rings) and Nut-Bolts of adequate quantity shall be supplied and installed without any extra cost. Cost is deemed to be included under this SOR item. 4. Supply of Pipes, all type Valves, fittings & flanges of sizes below 2" are covered under this SOR item. No separate payment will be made. Contractor to quote accordingly. 5. Any branch connection taken from mainline shall be considered under this SOR item only. Contractor to quote accordingly. 6. Appropriate support on existing piping for tap/ tie-in operations. 7. New vent line installation from all the new sources i.e., proposed skid or vent line connectivity with existing vent line header shall be considered under this SOR item only. Contractor to quote accordingly. 8. Checking thickness/ integrity of the existing pipe with UT machine where hook-up to be taken and finalization of locations for fittings, when appropriate thickness found.