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| 1 | The following valves to be removed from position,blanked pipe lines,shifted to workshop,dismantled all parts,cleaned,inspected,replace all the defective parts,painted,boxed back,pressure tested and fitted in position,valve gear operation to be overahuled,In butterfly valve- valve rubber seat to be checked,same need to be renewed if rubber seat is found defective.satisfactory operation to be showned to surveyor and ship staff,initial and final survey reports to be submitted.all consumables and materials like ms blanks,neoprane joints,oil joints,gm lids and seat machining works,grease,wraping sheets,ss washers ,ss fasteners(ss316),brass seat rings,gland packing,glands, ss/ brass spindels,valve wheels,butterfly valve rubber seat mouldings,neoprene rubber coating inside the valves,valve gear box parts,paints are procure,supply and fitment in contractor scope.all machining works,pullers,welding,cutting and brazing works are in contractor scope. |
| 2 | Butterfly valve, Size - 50mm ,Test Pressure 08 Bar. |
| 3 | SDNR valves and Flap Valves, Size - 55mm |
| 4 | Cock Valves,Size - 25mm |
| 5 | Supply of Butterfly valve as per sample, Size - 50mm ,Test Pressure 08 Bar.material: cast iron |
| 6 | Supply of SDNR valves and Flap Valves as per samples, Size - 55mm,material: cast iron |
| 7 | Supply of Cock Valves as per sample,Size - 25mm,material: cast iron |
| 8 | Screw out drain plugs, lubricate and fit back the drain plugs fitted on the pipe lines. Worn out drain plugs to be replaced. all materials and consumables are in vendor scope |
| 9 | Calibrate automatic cut-in and cut-out mechanism of hydrophore tanks.Cut-in Pressure - 4 Bar,Cut-out Pressure - 5 Bar |
| 10 | Supply of defective Pressure switches as per sample,Cut-in Pressure - 4 Bar,Cut-out Pressure - 5 Bar |
| 11 | Repair and calibrate relief valve in the hydrophore tank pneumatic charging system.Relief Valve Set Pressure - 7.5 Bar |
| 12 | Supply of defective relief valves as per sample.Relief Valve Set Pressure - 7.5 Bar. |
| 13 | Carryout functional checks of all instrumentation and sensors. Undertake calibration and repairs. Instrumentation includes Pressure Transmitter (Range 0-10 Bar, Qty 06), Pressure Gauge (Range 0-10 Bar,Qty 06) |
| 14 | Supply of all defective instrumentation and sensors as per sample.Instrumentation includes Pressure Transmitter (Range 0-10 Bar, Qty 06), Pressure Gauge (Range 0-10 Bar,Qty 06) |
| 15 | Clean hydrophore tank. Clean associated gauge glass.Carry out pressure test on the tank to test pressure.Test Pressure - 7.5 Bar |
| 16 | Fresh water pump 2 is not cut-in in intermittently during exploitation.Suspect pressure switch malfunctioning .Undertake Defect rectification of pressure switch and calibration. Make- Danfoss |
| 17 | Supply of Pressure switch as per sample for Fresh water pump, Make- Danfoss |
| 18 | Fresh water pump 6 is not cut-in in intermittently during exploitation.Suspect control panel malfunctioning.Undertake Defect rectification. Make- Grundfoss, Capacity- 10 TPH |
| 19 | Supply and fitment of Forward hydrophore tank air charging valve . Type - SDNR, Dia- 32 MM,material: Brass |
| 20 | Pumps overhaulingThe following Pumps to be removed,dismantled,overhauled and Performance trails of the pump to be undertaken prior on board installationfitted back.Bearings, wear rings, O-rings and mechanical seal to be replaced.Impeller, casings, shafts to be inspected and repaired if found worn out ,pump coupling guards to be repaired,Pump should be boxed up back and tried out for the performance test in the presence of ship staff. job includes alignment with motor,NDT checks,shaft trueness,wear ring clearences,initial and final reports and calibration reports to be submitted. All Required spares like Bearings(SKF/ FAG/ TIMKEN/ NTN), wear rings, O-rings and Mechanical seals(General seals/ SKF), sleeves, shaft keys, bushes,ss fasteners(SS316),gaskets,couplings and coupling pads and consumables are procure,supply and fitment in contractor scope. Test certificate and material certificate to be provided for Bearings and mechanical seals.satisfactory operation trials shown to ship staff. |
| 21 | Fresh Water pump no.1. Make-Best & crompton ,Capacity -10 TPH |
| 22 | Fresh Water pump no.5. Make-Grund Foss ,Capacity -10 TPH |
