Name of Work:- OVERHAULING OF M/E, A/E HP AIR SYSTEM WORKS ON INS PROJECT | Sl. No. | Item Description | |
| 1 | The following HP Air system valves to be overhauled as per annexure-A, and operation to be showned to ship staff.all required materials and consumables are in contractor scope. | | 2 | MAIN ENGINE STARTING AIR SYSTEM | | 3 | Overhaul defective bottle head assembly valves,Test Pressure - 45 Bar | | 4 | 25% (04 out of 16) system valvesTest Pressure - 45 Bar, Size - 40mm, Material - SS. | | 5 | Calibrate all HP air reducers and relief valves.Air Reducer - 200 to 30 Bar, Qty 04, Material - SSAir Relief Valves - Set Pressure 33 Bar, Qty 04, Material - SS | | 6 | DA STARTING AIR SYSTEM | | 7 | Overhaul defective bottle head assembly valves. Test Pressure - 45 Bar | | 8 | Overhauling of the following valves.Valve type - SD Valve, Dia - 20mm, Mat - SS, Test Pressure - 45 Bar,Qty - 03 Valve type - Ball Valve, Dia - 20mm, Mat - SS, Test Pressure - 45 Bar,Qty - 03 Valve type - SD Valve, Dia - 25mm, Mat - SS, Test Pressure - 45 Bar,Qty - 03 | | 9 | Check for correct functioning of system relief valves. Carry out calibration of relief valves.Set Value: 33 bar, Mat - SS | | 10 | 25% (05 out of 21) system valves(a) Dia: 50 mm; Qty : 02, Type - check Valve, Mat - Cast steel(b) Dia: 50mm; Qty : 03, Type - Plug Valve, Mat - Cast steel | | 11 | Calibrate all HP air reducers & relief valves.Reducer,Dia: 50 mm; Working Range Value: 30 bar to 10 bar; Qty - 03 Relief Valve,Dia: 50 mm; Working Set Value: 11.5 bar; Qty - 03 | | 12 | HP AIR RECEIVER SYSTEM | | 13 | Overhaul defective bottle head assembly valves.Valve type - SD Valve, Dia - 32mm, Mat - SS, Test Pressure - 15 Bar,Qty -02 Valve type - Ball Valve, Dia - 40mm,Mat - SS, Test Pressure - 15 Bar,Qty -01 | | 14 | Procure,supply and replace all leaking plug/ball valves. Dia - 40mm,Mat - SS, Test Pressure - 45 Bar | | 15 | Refit 25% (40 out of 120) Overhauling of valve to be carried out.(a) Dia : 50 mm ; Type - NR Valve ; Working Range: 0-200 bar; Qty - 02(b) Dia : 50 mm ; Type - Ball Valve ; Working Range: 0-10 bar; Qty - 02 (c ) Dia : 40 mm; Type - Ball Valve; Working Range: 0-200 bar; Qty - 02(d) Dia : 32 mm; Type - Ball Valve; Working Range: 0-30 bar; Qty - 05(e) Dia : 50 mm ; Type - Ball Valve ; Working Range: 0-200 bar; Qty - 05(f) Dia : 40 mm ; Type - Ball Valve ; Working Range: 0-200 bar; Qty - 04(g) Dia : 25 mm ; Type - Ball Valve ; Working Range: 0-10 bar; Qty - 20 | | 16 | Calibrate all HP air reducers & relief valves. Reducers:(a) Dia : 50 mm; Working Range: 200 bar to 10 bar; Qty -01(b) Dia : 50 mm; Working Range: 200 bar to 30 bar; Qty -06 (c ) Dia : 50 mm; Working Range: 200 bar to 150 bar; Qty -02(d) Dia : 40 mm; Working Range: 200 bar to 30 bar; Qty -02(e) Dia : 32 mm; Working Range: 30 bar to 8 bar; Qty -02(f) Dia : 50 mm; Working Range: 30 bar to 8 bar; Qty -02 Relief ValvesRelief Valve AMR I; Set Point – 31.5 bar; Qty - 02(b) Relief Valve AMR II; Set Point – 31.5 bar; Qty – 02(c) Relief Valve AMR II; Set Point – 9.5 bar; Qty - 02(d) Relief Valve MER; Set Point – 31.5 bar; Qty – 02(e) Relief Valve RAS Line MER; Set Point – 11.5 bar; Qty - 02 | | 17 | 25% (02 out of 08) system valves(a)Dia: 50 mm; Qty : 01, Type - Ball Valve, Mat - Cast steel(b)Dia: 50mm; Qty : 01, Type - SD Valve, Mat - Cast steel | | 18 | Calibrate all HP air reducers & relief valves.Reducer: Dia: 32 mm; Working Range Value: 30 bar to 10 bar; Qty - 02 Relief Valve: Dia: 50 mm; Working Set Value: 9.5 bar; Qty - 02 | | 19 | Calibrate all HP air reducers/ relief valves.Capacity - 258 ltrs; Set Point - 220; Qty - 06(For 6 HP air Receiver installed onboard) | | 20 | SERVICE AIR RECEIVER SYSTEM | | 21 | Check for correct functioning of system relief valves. Carry out calibration of relief valves.Capacity :1000 Ltrs; Set Value: 9.5 bar, Mat - SS | | 22 | DA air starting system valves in AMR 1 compartment.Type - Plug valve,ball full bore, Size - 40mm, Mat - Cast/steel, PN - 45 Bar Qty - 02 Type - Plug valve,ball full bore, Size - 50mm, Mat - Cast/steel, PN - 45 Bar Qty - 2 Type - SDNR, Size - 40mm, Mat - Cast/steel, PN - 45 Bar Qty - 03 | | 23 | Carry out overhauling of 25% of system valves of following system:-(a) Starting air system:- 25% (05 out of 20)(i) Dia: 40 m; Qty - 03, Type - Plug Valve, PN - 45 Bar(ii) Dia : 50 m; Qty- 02, Type -SDNR, Mat - CS,PN - 45 Bar(b) Fuel system:- 25% (05 out of 20) (i) Dia: 25 m; Qty - 04, Type - Ball Valve, Mat - CS, PN - 10 Bar(c)Sea water System :- 25% (09 out of 35)(i) Dia : 125 mm, Qty - 02 ; Type: Butterfly, Mat - NAB, PN - 10 Bar(ii) Dia: 80 mm, Qty - 02, Type - SD, Mat - NAB, PN - 10 Bar(iii) Dia: 80 mm, Qty - 02, Type - Butterfly, Mat - NAB, PN - 10 Bar(iv) Dia: 50 mm, Qty - 02, Type - SDNR, Mat - NAB,PN - 10 Bar(v) Dia : 125 MM, Qty - 01, Type - SDNR, Mat - NAB,PN - 10 Bar Please Enable Macros to View BoQ information |
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