House Service Connection Up-To Consumer Premises With Mdpe Pipes Of Required Dia . And Necessary Accessories Including Water Meter For Water Supply Scheme Within Purulia Municipality Under Brgf ( Spl ) Programme ( 3Rd Call ) , pipe and acceseries : , providing supply , installation , fittings , testings and commissioning of house connection of water supply with p . e . pipe 20mm dia & p . e . compressions ef fittings 20mm , excavation , all short of bituminous/ concrete road upto depth of hdpe distribution pipeline bottom , cuttings , fittings , fixing , mdpe pipe & p . e . pipe fittings up to c . i . bib/stop cock 1 no . to consumer premises for an average length of 15 mtrs , including restoration if any if any damage of under ground drainage lines , above ground open channel drainage sestem , electrical lines , telephone lines , other water supply lines , crossing drain line through pvc/hdpe/gi conduit pipe including leakage testing , supply of mdpe pipes pe 100 , pn 16 , 15 mtrs ( average ) , pe both side compression elbow 90 deg . p . e . one side compression other side ss insert female thread , elbow 90deg . p . e adopter with ss insert m/f thread-compression , pe ball valve ss metal insert thread compression , g . i . nipples 6 long - 3 nos . , 10mm dia , gunmetal ferrule conforming to is2692/1984 ( re-affirmed 2005 ) in case of di distibution line or 3 nos . electrofusion tapping ferrule/ saddle , mdpe ( pe100 ) of pressure rating pn16/ sdr11 , ( mechanical type clamp saddle with bypass arrangement ) to disconnect the connection in case of authority requires etc . with s . s . cutter 8 mm dia , flow regulator , water tight cap-cutting edges and making hole / tapping 8 mm dia in case of hdpe distribution line , 1 no . , nrv confirming to is 778/ class i - 1no . , tested c . i . bib/ stop cock- 1 no . , p . e . meter box/ cabinet with common lockable key suitable for cover meter - 1no . , pvc ball valve & nrv- 1 no . , black filling with silver sand 300 mm thik over ferrule and balance depth with excavated earth up to road level and also remove surplus earth from road side , including fixing of meter as per direction of eic . house water supply connectionthrough 20 mm dia . mdpe pipes . , supply , delivery , unloading and proper staking at site of 15mm . dia . multijet type water meters , class b , +/- 2% , is779/ iso4064 , admissible pr . max . 16kg/cm2 360 degree orientable , cybal computable , magnetic transmission drive , copper can mineral glass 5 mm . thik envelop , extra dry dial , totalizer , protection class ip68 , strainer inbuilt , eec/mid marked with brass nuts & nipples ( vendor list to be approved by the concerned superintending engineer , m . e . dte . befor execution of work ) 15 mm dia . water meter typical performance i ) starting flow :- < 10 l /hr . ii ) accuracy from + / - 5% :- < 30 l /hr . iii ) accuracy from + / - 2% :- 120 l /hr . iv ) max . flow + / - 5% :- 3000 l /hr .
