bids are invited for 6m- long 3 inchcomposite wagon unloadinghose - supply of tank wagon unloading hoses, scope include design, manufacture, testing, third party inspection, transportation and door delivery of unloading hose conforming to is-10733 and bs-3492 and oisd135, hose shall be length: 6 m made of flexible braided rubber with electrical continuity as per standard is 10733 type 2b suitable for hydrocarbon oil service for unloading wagon, working pressure 7 bar and a burst pressure of not less than 14 bar, temperature range: 20 to 80 deg c, one end of the hose to be fitted with asa #150 3 in flange and other end to be fitted with flange suitable for hooking up with both wagon unloading point of standard indian railways btpn wagon (pcd: 203 mm, bolt hole: 20 mm x 6 nos, outer diameter: 250 mm) and asa #50, 3 in flange, one side of the flange to be engraved/embossed/punched with word hpcl for the purpose of identification. , 6m- long 3 inchnitrile rubber wagon unloadinghose - supply of tank wagon unloading hoses, scope include design, manufacture, testing, third party inspection, transportation and door delivery of unloading hose conforming to is-10733 and bs-3492 and oisd135, hose shall be length: 6 m.tube : nitrile rubber ( 2.5 mm thick ) having shore hardness 53 dega filler : nitrite rubber ( 1.0 mm thick ) single line having shore hardness 55 deg a fabric : multiple plies of high tensile synthetic fabricwire : single helical g.i. wire cover : nitrile rubber plain cover ( 1.5 mm thick ) single cover having shore hardness 60 dega electrical continuity : copper wire end connection : - one end of the hose to be fitted with asa #150 3 in flange and other end to be fitted with flange suitable for hooking up with both wagon unloading point of standard indian railways btpn wagon (pcd: 203 mm, bolt hole: 20 mm x 6 nos, outer diameter: 250 mm) and asa #50, 3 in flange, size & length : - 3 dia x 6 metertemperature range: 20 to 80 deg c, hydrostatic test pressure : - 1