tender for grp piping works supplying and laying of glass reinforced plastic ( grp ) piping for re-routing of desalination product water pipeline in refinery-iii in manali refinery of cpcl , chennai , tamilnadu , non metallic piping -grp ( glass re-inforced plastic ) piping supply and work-under ground , the scope of work includes supply of all grp ( glass re-inforced fibre ) piping material ( pipes & fittings ) with sutiable accessories as per is 14402 ( bs 5480 ) etc . , with additional materials requirements , inspection and quality requirements specified in tender . thickness of the pipe: 12 mm to 13 mm class of pipe: pn9 pipes shall be as per is 14402 ( latest edition ) . , scope includes design , engineering and procurement of grp pipes through and approved qap by cpcl . all quality requirements as per tender shall be followed from the stage of raw material selection . all pipes and fittings shall be stored and transported to cpcl premises by contractor only . necessary storage yard at cpcl premmises to be arranged by contractor only . , some of the salient requirements are- spec no . : cpcl-grp-001 rev . 0 1 . vinyl ester resin shall be used and moc of pipe shall comply to the following requirement: a . glass content: 45-50% b . resin content: 40-45% c . aggregates: 5-10% 2 . long term hydro-test report will be furnished to cpcl . 3 . the vendor names for resin and glass fiber suppliers have to be furnished to cpcl . 4 . hot air blowing for curing to be used instead of ir heaters . 5 . cross breaking load test reports and fiber composition test using ftir spectrum analysis added in qap for resin . 6 . measurement of end dimensions and checking of helical windings after manufacturing . 7 . the number of helical and hoop windings to be furnished by vendor with design report . 8 . tpi is required & material test certification shall be submitted by the vendor . , storage of all materials , transportation of all materials from contractors storage point to work site , handling at site , cutting , bevelling ( as required ) , fabrication , laying , fabrication , erection , joining of grp piping including supply of sleeve rcc hume pipes below ground level , trenches at all depths , stand posts , anchoring of all underground pipelines for conection . unless and otherwise specified , the lines shall be laid in a sucha way that minimum 1 . 5 mtrs earth cover is available above line . , the piping job includes all modification and replacement jobs involving cutting , joining pipes & all types of fittings like elbows / tees / reducers / half coupling / full coupling , etc . , , 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 owners storage point and dumping the generated scrap material to designated area as per eic instructions . , exclusions: the rates for the following items shall be exclusive of concrete / pcc breaking , earth work removal , earth back filling , removal of old piping for replacement & supply and erection of rcc hume pipes . payments towards above exclusions shall be paid separately . , inclusions: the rates for the following items shall be inclusive of supply ( pipes , fittings , couplers etc ) , fabrication , laying , erection , joining , flushing , hydrotesting , draining , stagewise inspection , draining , drying etc . , if hydrotest is carried out for intermittent piping loops , complete grp piping hydrotesting shall be offered from starting point to end point also . no separate payment shall be made for intermittent piping loops testing . no separate payment shall be made for elbow , tees , couplings and other fittings . same is inlcuded in piping qty only . bidder to quote accordingly . , scope of contractor also includes design , supply and construction of thrust blocks and anchor blocks of rcc construction at all locations wherever pipeline changes directionand raised above ground from underground etc . , design details shall be submitted to cpcl for review and approval . no separate payment shall be made for the same . , with contractor supply of construction power , water & contractors welding/heating machine , bidder shall submit joining method , laying procedure and instlalation procedure for review and approval prior to start of works , supply , fabrication and laying of grp piping material ( pipes , fittings & couplings and all other accessories ) ( laying includes above ground and underground ) , 2 nos of air cum vacuum release valves of minimum size 3 ( size & moc- to suit desal water refer specification sheet in tender ) to be designed , supplied and installed with a reducing tee ( 28 x 4 ) and suitable fititngs and pipings . arv set-up shall be above ground and assembly shll be suitably supported with rcc encasing as required . price for arv shall be paid separately . but other grp piping , flanges and fittings cost is included in this item itself . , 700mm od grp piping is 14402 , supply & laying of non pressure np2 class ( medium duty ) rcc hume pipe , with collars jointed with stiff mixture of cement mortar , the scope of work includes supply of all rcc hume pipes was per specification np2 medium duty . , storage of all materials . transportation of all free issue materials from contractors storage point to work site , handling at site , laying , fabrication , erection below ground level , trenches at all depths , stand posts , anchoring of all underground pipelines for conection . unless and otherwise specified , the lines shall be laid in a sucha way that minimum 1 . 5 mtrs earth cover is available above line . providing and laying non-pressure class ( np2 ) rcc pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 ( 1 cement:2 fine sand ) including testing of joints etc . complete:1000mm dia rcc pipes , 1000 mm dia rcc hume pipes , fabrication and erection of structurals: , structurals supply and fabrication ( from structural materials supplied by contractor ) :- supply , fabrication , erection ( at all elevations ) of pipe supports like shoes , cradles , hangers , clamps/anchors ( of all sizes/thicknesses manufactured by forming method using die ) , turn buckles , saddles , guides , special supports , pads , t post etc . of all types including supply and application one coat of primer , all necessary equipments , consumables , labour , returning surplus materials and scrap etc to owners storage points and completing work as per drawings , specifications and instructions of engineer-in-charge . modifications/rectifications , if required; and adjustment/ alignment during precommisioning , commisioning as per the instructions of engineer-in-charge . pipe shoes for all lines are included in this clause . supply and erection of anchor fasteners are included in contractors scope . , inclusive of structural and pipe support painting : supplying and applying all paints including storage , surface preparation , degreasing , cleaning , drying , touching up of shop primer coat , providing temporary staging , scaffolding , testing etc . , for steel strucres at all levels and locations , all complete as speficied . ( as per eil spec 6-44-0004 rev -2 , table 10 . 0 sno . 10 . 2 ) , c . s structural steel ( cs ) , design , supply , erection of air cum vacuum release valves including all associated items like reducing tee , clamp , fasteners , gaskets , flanges , pipe and upstream isolation valve etc . , all accessories ) . scope also includes transpor