Wbmad / Purulia / Nieq-25 / 2020-21 House Service Connection Up-To Consumer Premises With Mdpe Pipes Of Required Dia . And Necessary Accessories Including Water Meter For Water Supply Scheme Within Board Of Administrators , Purulia Municipality Under Brgf ( Spcl ) Programme , 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 .
