Bids Are invited for Repair And Overhauling Service - Concluding Rate Contract For Whole Ship Structural Repairs Onboard In Vessels; Any Other Suitable Brand; No; Buyer Premises - Steel Renewal- Uw (With Degutting & Regutting)Renewal Of Underwater (U
Tender Overview
Project Description
Bids Are invited for Repair And Overhauling Service - Concluding Rate Contract For Whole Ship Structural Repairs Onboard In Vessels; Any Other Suitable Brand; No; Buyer Premises - Steel Renewal- Uw (With Degutting & Regutting)Renewal Of Underwater (Uw) Structural Plates (With Stiffeners) Including Degutting Of Lagging, Perforated Paneling (Approx. 1-2 Clear On All Edges On Both Sides Of The Structure) And Testing Of Welds By Dpt, Followed By Re-Gutting Of Lagging/ Paneling.As Per Qis Attached , Steel Renewal – Uw (Without Deguttingrenewal Of Underwater Structural Plates (With Stiffeners) And Testing Of Welds By Dpt.As Per Qis Attached , Repair By Build-Ups For Sea Tubes/ Sea Chests/ Obds/ Deck Flanges. (Above 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor.As Per Qis Attached , Repair By Build-Ups For Sea Tubes/ Sea Chests/ Obds/ Deck Flanges. (Below 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor.As Per Qis Attached , Renewal Of Sea Tubes/ Sea Chests/ Obds/ Deck Flanges. (Above 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor.As Per Qis Attached , Renewal Of Sea Tubes/ Sea Chests/ Obds/ Deck Flanges. (Below 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor.As Per Qis Attached , Pressure Testing Of Sea Tubes/ Obds/ Sea Chest / Deck Flanges (Above 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Pressure Testing Of Sea Tubes/ Obds/ Sea Chest / Deck Flanges (Below 125Mm Dia), Associated Pipes Of Grade Sa 106 A/B (Or) Dmr-249 Steel Are To Be Supplied By Vendor. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Metal Build Up Of Pits/Cracks - Uw Metal Build Up Of Pits/ Cracks In Underwater Hull Structures, Followed By Grinding And Dpt.As Per Qis Attached , Anodes. Cutting / Welding Of Sacrificial Zinc Anodes On Underwater Hull. As Per Qis Attached , Zinc Rings. Cutting / Welding Of Zinc Rings (Protectors).As Per Qis Attached , Scupperlips Cutting And Welding Of Scupper Lips Including Degutting And Regutting - Manufacturing, Fitment And Repair Of Supper Lips. As Per Qis Attached , Gratings/ Baffle Plates. Removal And Fitment Of U/W Gratings/ Baffle Plates.As Per Qis Attached , Rope Guards. Removal And Fitment Of Rope Guards Fitted On Shaft. As Per Qis Attached , Eddy Cones. Removal And Fitment Of Eddy Cones Fitted On Shaft As Per Qis Attached , Lifting Eye Hooks- Uw/Awmanufacturing, Cutting And Welding Of Lifting Eye Hooks On Underwater Shell Plating, With Subsequent Final Cutting And Grinding. As Per Qis Attached , Structural Repairs Of Stern Tube Including Bossing Plate/ Technical Window Jigging, Cutting & Welding Of Damaged Tube And Frames.As Per Qis Attached , Renewal/ Mfg Of Stern Tube As Per Drawing Or As Fitted Structures Fitment By Welding, Grinding And Dpt. Post Necessary Jigging/ Re-Fitting As Per Dimensions: Length 6Meters - 12Meters, Dia 600Mm - 1000Mm.As Per Qis Attached , Foundations-Mfg & Fitment Uw. Manufacturing And Fitment Of Foundations On Tank Tops/Underwater Compartments.As Per Qis Attached , Foundations-Fitment-Uw. Fitment Of Foundations (Provided By Yard/Ss) On Tank Tops/Underwater Compartments.As Per Qis Attached , Steel Renewal- Aw (With Degutting & Regutting) Renewal Of Above-Waterline (Aw) Structural Plates (With Stiffeners) Including Degutting Of Lagging, Perforated Paneling (Approx. 1-2 Clear On All Edges On Both Sides Of The Structure) And Testing Of Welds By Dpt, Followed By Re-Gutting Of Lagging/ Panelling. As Per Qis Attached , Steel Renewal – Aw (Without Degutting) Renewal Of Above-Waterline Structural Plates (With Stiffeners). As Per Qis Attached , Aluminium Structural Renewal- Aw (With Degutting & Reguttingrenewal Of Above-Water Line Structural Plates (With Stiffeners) Including Degutting Of Lagging, Perforated Paneling (Approx. 1-2 Clear On All Edges On Both Sides Of The Structure) And Testing Of Welds By Dpt, Followed By Re-Gutting Of Lagging/ Panelling.As Per Qis Attached , Aluminium Structural Renewal- Aw (Without Degutting & Regutting) Renewal Of Above-Waterline Structural Plates (With Stiffeners) And Testing Of Welds By Dpt. Will Include Manufacture Of Structures/ Foundations/ Fittings Such As Racks, Spta Boxes, Covers, Brackets And Cl S.As Per Qis Attached , Metal Build Up Of Pits/ Cracks – Aw- Steel/Alu, Metal Build Up Of Pits/ Cracks In Above-Waterline Hull Structures, Followed By Grinding And Dpt. As Per Qis Attached , Hot Work Assistance. Cutting / Welding/ Heating/ Grinding Assistance In Underwater Or Above-Water Line Hull Structures (Assistance Consists 01 Welder, 01 Cutter & 01 Un-Skilled Employed For 12 Hours).Certified By Mfab , Bimetallic Joints- Renewal, Renewal Of Bimetallic (Aluminium To Steel) Joints (Including Cladded Joints) With Degutting/ Regutting As Required For Hot Work.As Per Qis Attached , Bimetallic/ Riveted Joints- Fabrication- Al/Msfabrication Of Bimetallic/ Riveted Joints By Aluminium Rivets As Per Qis Attached , Deck Eyes, Manufacture And Welding Of Deck Eyes.As Per Qis Attached , Soft Patches, Removal, Repair/ Refurbishment And Re Fitment Of Soft Patches, Including Degutting And Regutting With Renewed Nuts And Bolts And Breaking Of Any Cold Repair Compound.As Per Qis Attached , Expansion Joints Renewal. Expansion Joints Manufacturing/ Renewal Including Rubber Sheets. Degutting And Regutting Also To Be Carried Out Before/ After Hot Work. Leak-Tightness To Be Ensured. As Per Qis Attached , Apt Of Underwater Clusters – Non-Machinery Compartments, Air Pressure Testing (Apt) Of Underwater Compartment Clusters Including Cable Glands Packing , Rectification Of Associated Structural Defects Including Repairs/ Refurbishment Or Replacement Of Necessary Of Wtsv Valves, Ventilation Flaps. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Apt Of Underwater Clusters – Machinery Compartments, Air Hose Test (Aht) Of Underwater Compartment Clusters Including Cable Glands Packing, Rectification Of Associated Structural Defects Including Repairs/ Refurbishment Or Replacement Of Necessary Of Wtsv Valves, Ventilation Flaps. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Pressure Testing Of Tanks/Voids/Cofferdams, Pressure Testing Of Tanks/ Voids/ Cofferdams/ Stern Tubes/ Sonar Domes. Includes Repairs/ Blanking Of Manhole Covers (With New Rubber Gaskets/ Studs/ Bolts As Required) And Detection / Rectification Of All Structural Leaks. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Proving Of Citadel Cluster By Air Pressure Testing Of Above Water Compartment Citadels Including Blanking, Rectification Of Associated Structural Defects / Minor Repairs To Door& Hatches, Repair/ Refurbishment Or Replacement (If Necessary) Of Associated Spares Viz Bleed Valves, Aoqc Valves, Soqc Valves, Pressure Guage, Ventilation Valves, Ventilation Flaps, D Ers. Associated Spares To Be Provided By Firm. Test Pressure: 0.2 To 0.4 Kg/Sq.Cm.As Per Qis Attached , Radiography Test Of Welds, Carry Out Rt Of Welds As Per Qis Attached , Ultrasonic Test Of Welds, Carry Out Ut Of Welds As Per Qis Attached , Removal Of Chock Fasting Of Old Helo Grid Followed By Unfastastening Of Helo Grid Top And Bottom Plates And Carry Out Necessary Repairs.As Per Qis Attached , Fitment Of Helo Grid With Helo Deck Plate Post Boxing Up Of Helo Grid (Top & Bottom Plates). As Per Qis Attached , Chock Fasting Of Helo Grid, Chock Fasting Of Helo Grid (With Material).As Per Qis Attached , Strainers, Removal, Repairs & Fitment Of Strainers.As Per Qis Attached , Spurn Water Coaming, Repair / Renewal Of Spun Water Coaming Including Degutting And Regutting.As Per Qis Attached , Fabrication Hand Rails & Fixed Guard Rails, Cutting And Welding Of Guard Rails And Hand Rails Including Brackets& Associated Fittings Including Degutting/ Regutting And Supply Of Bolts As Per Qis Attached , Fabrication Of Portable Guard Rails & Shoes Portable Guard Rails, Shoes & Assoiated Fittings Mfg/Repair And Welding.As Per Qis Attached , Fitment Of Bonding Straps, Welding Of Bonding Straps Including Degutting And Regutting As Per Qis Attached , Brazing Assistance In Shopfloor/Onboard And Testing Of Repairs By Dpt / Pressure Testing, Certified By Mfab.Certified By Mfab , Titanium Welding. Tig Welding Assistance For Ti/Cu-Ni/Silver/Alu.In Shopfloor / Onboard And Testing Of Repairs By Dpt / Pressure Testing, Certified By Mfab.Certified By Mfab , Insitu Repairs Of Submarine Casings/ Fin Flaps, Locking Mechanisum Of Casing/ Fin Flaps, Hinges And All Associted Spares To Be Provided By Firm.As Per Qis Attached , Hts Studs. Renewal Of Hts Studs Post Tapping.As Per Qis Attached , Pressure Testing Of Naval Pipe And Hawse Pipes Including Repairs, Blanking And Detection/Rectification Of Structural Leaks. Test Pressure:0.3 Kg/Sqcm. As Per Qis Attached , Removal & Fitment/Replacement Of Sonar Dome (Grp/Titanium). (A) Removal Of Old Fairing Plates.(B) Removal Of Sonar Dome.(C) Preparation Of Flange Seal For Fitment Of New Sonar Dome.(D) Hoistage & Alignment For Fitment Of New Sonar Dome.(E) Torque Tightening Of Bolts.(F) Water Tight Test Of New Sonar Dome.(G) Fitment Of Fairing Plates. As Per Qis Attached , Repairs/Refurbishment/Removal & Fitment Of Submarine Casing, Casing Bulb Bar And Frames Along With Structural Repairs Including Casing Flaps In Each Casing (Including De-Gutting And Re-Gutting Of Cl S) (Including Lowering & Housting Of Casing Using Certified Slings, Belts And D-Shackles) Approximate Weight: 3 To 5 Tons Per Casing.As Per Qis Attached
BOQ
| Sl. No. | Item Title | Item Description |
| 1 | Steel Renewal- UW (with degutting & regutting)Renewal of underwater (UW) structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ paneling.as per QIS attached | Steel Renewal- UW (with degutting & regutting)Renewal of underwater (UW) structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ paneling.as per QIS attached |
| 2 | Steel Renewal – UW (without deguttingRenewal of underwater structural plates (with stiffeners) and testing of welds by DPT.as per QIS attached | Steel Renewal – UW (without deguttingRenewal of underwater structural plates (with stiffeners) and testing of welds by DPT.as per QIS attached |
| 3 | Repair by build-ups for Sea tubes/ Sea chests/ OBDs/ Deck flanges. (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached | Repair by build-ups for Sea tubes/ Sea chests/ OBDs/ Deck flanges. (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached |
| 4 | Repair by build-ups for Sea tubes/ Sea chests/ OBDs/ Deck flanges. (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached | Repair by build-ups for Sea tubes/ Sea chests/ OBDs/ Deck flanges. (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached |
| 5 | Renewal of Sea tubes/ Sea chests/ OBDs/ Deck flanges. (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached | Renewal of Sea tubes/ Sea chests/ OBDs/ Deck flanges. (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached |
| 6 | Renewal of Sea tubes/ Sea chests/ OBDs/ Deck flanges. (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached | Renewal of Sea tubes/ Sea chests/ OBDs/ Deck flanges. (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor.as per QIS attached |
| 7 | Pressure Testing of Sea tubes/ OBDS/ Sea chest / Deck flanges (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | Pressure Testing of Sea tubes/ OBDS/ Sea chest / Deck flanges (above 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 8 | Pressure Testing of Sea tubes/ OBDS/ Sea chest / Deck flanges (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | Pressure Testing of Sea tubes/ OBDS/ Sea chest / Deck flanges (below 125mm Dia), Associated Pipes of grade SA 106 A/B (or) DMR-249 steel are to be supplied by vendor. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 9 | Metal Build up of pits/cracks - UW Metal build up of pits/ cracks in underwater hull structures, followed by grinding and DPT.as per QIS attached | Metal Build up of pits/cracks - UW Metal build up of pits/ cracks in underwater hull structures, followed by grinding and DPT.as per QIS attached |
| 10 | Anodes. Cutting / Welding of Sacrificial Zinc Anodes on Underwater Hull. as per QIS attached | Anodes. Cutting / Welding of Sacrificial Zinc Anodes on Underwater Hull. as per QIS attached |
| 11 | Zinc rings. Cutting / Welding of Zinc rings (protectors).as per QIS attached | Zinc rings. Cutting / Welding of Zinc rings (protectors).as per QIS attached |
| 12 | Scupperlips Cutting and welding of scupper lips including degutting and regutting - Manufacturing, fitment and repair of supper lips. as per QIS attached | Scupperlips Cutting and welding of scupper lips including degutting and regutting - Manufacturing, fitment and repair of supper lips. as per QIS attached |
| 13 | Gratings/ Baffle plates. Removal and fitment of U/W gratings/ Baffle plates.as per QIS attached | Gratings/ Baffle plates. Removal and fitment of U/W gratings/ Baffle plates.as per QIS attached |
| 14 | Rope guards. Removal and fitment of Rope guards fitted on shaft. as per QIS attached | Rope guards. Removal and fitment of Rope guards fitted on shaft. as per QIS attached |
| 15 | Eddy cones. Removal and fitment of eddy cones fitted on shaft as per QIS attached | Eddy cones. Removal and fitment of eddy cones fitted on shaft as per QIS attached |
| 16 | Lifting eye hooks- UW/AWManufacturing, cutting and welding of Lifting eye hooks on underwater shell plating, with subsequent final cutting and grinding. as per QIS attached | Lifting eye hooks- UW/AWManufacturing, cutting and welding of Lifting eye hooks on underwater shell plating, with subsequent final cutting and grinding. as per QIS attached |
| 17 | Structural repairs of Stern tube including bossing plate/ technical window Jigging, Cutting & welding of damaged tube and frames.as per QIS attached | Structural repairs of Stern tube including bossing plate/ technical window Jigging, Cutting & welding of damaged tube and frames.as per QIS attached |
| 18 | Renewal/ Mfg of Stern tube as per drawing or as fitted structures fitment by welding, grinding and DPT. Post necessary jigging/ re-fitting as per dimensions: length 6meters - 12meters, dia 600mm - 1000mm.as per QIS attached | Renewal/ Mfg of Stern tube as per drawing or as fitted structures fitment by welding, grinding and DPT. Post necessary jigging/ re-fitting as per dimensions: length 6meters - 12meters, dia 600mm - 1000mm.as per QIS attached |
| 19 | Foundations-mfg & fitment UW. Manufacturing and fitment of foundations on tank tops/underwater compartments.as per QIS attached | Foundations-mfg & fitment UW. Manufacturing and fitment of foundations on tank tops/underwater compartments.as per QIS attached |
| 20 | Foundations-fitment-UW. Fitment of foundations (provided by yard/SS) on tank tops/underwater compartments.as per QIS attached | Foundations-fitment-UW. Fitment of foundations (provided by yard/SS) on tank tops/underwater compartments.as per QIS attached |
| 21 | Steel Renewal- AW (with degutting & regutting) Renewal of above-waterline (AW) structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ panelling. as per QIS attached | Steel Renewal- AW (with degutting & regutting) Renewal of above-waterline (AW) structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ panelling. as per QIS attached |
| 22 | Steel Renewal – AW (without degutting) Renewal of above-waterline structural plates (with stiffeners). as per QIS attached | Steel Renewal – AW (without degutting) Renewal of above-waterline structural plates (with stiffeners). as per QIS attached |
| 23 | Aluminium structural renewal- AW (with degutting & reguttingRenewal of above-water line structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ panelling.as per QIS attached | Aluminium structural renewal- AW (with degutting & reguttingRenewal of above-water line structural plates (with stiffeners) including degutting of lagging, perforated paneling (approx. 1-2’ clear on all edges on both sides of the structure) and testing of welds by DPT, followed by re-gutting of lagging/ panelling.as per QIS attached |
| 24 | Aluminium structural renewal- AW (without degutting & regutting) Renewal of above-waterline structural plates (with stiffeners) and testing of welds by DPT. Will include manufacture of structures/ foundations/ fittings such as racks, SPTA boxes, covers, brackets and clamps.as per QIS attached | Aluminium structural renewal- AW (without degutting & regutting) Renewal of above-waterline structural plates (with stiffeners) and testing of welds by DPT. Will include manufacture of structures/ foundations/ fittings such as racks, SPTA boxes, covers, brackets and clamps.as per QIS attached |
| 25 | Metal Build up of pits/ cracks – AW- Steel/Alu, Metal build up of pits/ cracks in above-waterline hull structures, followed by grinding and DPT. as per QIS attached | Metal Build up of pits/ cracks – AW- Steel/Alu, Metal build up of pits/ cracks in above-waterline hull structures, followed by grinding and DPT. as per QIS attached |
| 26 | Hot Work Assistance. Cutting / Welding/ Heating/ Grinding Assistance in underwater or above-water line hull structures (Assistance consists 01 Welder, 01 Cutter & 01 Un-Skilled employed for 12 Hours).Certified by MFAB | Hot Work Assistance. Cutting / Welding/ Heating/ Grinding Assistance in underwater or above-water line hull structures (Assistance consists 01 Welder, 01 Cutter & 01 Un-Skilled employed for 12 Hours).Certified by MFAB |
| 27 | Bimetallic Joints- Renewal, Renewal of Bimetallic (Aluminium to Steel) Joints (including Cladded joints) with degutting/ regutting as required for hot work.as per QIS attached | Bimetallic Joints- Renewal, Renewal of Bimetallic (Aluminium to Steel) Joints (including Cladded joints) with degutting/ regutting as required for hot work.as per QIS attached |
| 28 | Bimetallic/ Riveted joints- Fabrication- AL/MSFabrication of bimetallic/ riveted joints by Aluminium rivets as per QIS attached | Bimetallic/ Riveted joints- Fabrication- AL/MSFabrication of bimetallic/ riveted joints by Aluminium rivets as per QIS attached |
| 29 | Deck eyes, Manufacture and welding of deck eyes.as per QIS attached | Deck eyes, Manufacture and welding of deck eyes.as per QIS attached |
| 30 | Soft patches, removal, repair/ refurbishment and re fitment of soft patches, including degutting and regutting with renewed nuts and bolts and breaking of any cold repair compound.as per QIS attached | Soft patches, removal, repair/ refurbishment and re fitment of soft patches, including degutting and regutting with renewed nuts and bolts and breaking of any cold repair compound.as per QIS attached |
| 31 | Expansion joints renewal. Expansion joints manufacturing/ renewal including rubber sheets. Degutting and regutting also to be carried out before/ after hot work. Leak-tightness to be ensured. as per QIS attached | Expansion joints renewal. Expansion joints manufacturing/ renewal including rubber sheets. Degutting and regutting also to be carried out before/ after hot work. Leak-tightness to be ensured. as per QIS attached |
| 32 | APT of Underwater Clusters – Non-machinery compartments, Air Pressure Testing (APT) of underwater compartment clusters including cable glands packing , rectification of associated structural defects including repairs/ refurbishment or replacement of necessary of WTSV Valves, ventilation flaps. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | APT of Underwater Clusters – Non-machinery compartments, Air Pressure Testing (APT) of underwater compartment clusters including cable glands packing , rectification of associated structural defects including repairs/ refurbishment or replacement of necessary of WTSV Valves, ventilation flaps. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 33 | APT of Underwater Clusters – Machinery compartments, Air Hose Test (AHT) of underwater compartment clusters including cable glands packing, rectification of associated structural defects including repairs/ refurbishment or replacement of necessary of WTSV Valves, ventilation flaps. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | APT of Underwater Clusters – Machinery compartments, Air Hose Test (AHT) of underwater compartment clusters including cable glands packing, rectification of associated structural defects including repairs/ refurbishment or replacement of necessary of WTSV Valves, ventilation flaps. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 34 | Pressure Testing of Tanks/Voids/Cofferdams, Pressure Testing of Tanks/ Voids/ Cofferdams/ Stern Tubes/ Sonar Domes. Includes repairs/ blanking of manhole covers (with new rubber gaskets/ studs/ bolts as required) and detection / rectification of all structural leaks. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | Pressure Testing of Tanks/Voids/Cofferdams, Pressure Testing of Tanks/ Voids/ Cofferdams/ Stern Tubes/ Sonar Domes. Includes repairs/ blanking of manhole covers (with new rubber gaskets/ studs/ bolts as required) and detection / rectification of all structural leaks. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 35 | Proving of Citadel Cluster by Air Pressure Testing of above water compartment Citadels including blanking, rectification of associated structural defects / Minor repairs to Door& Hatches, Repair/ refurbishment or replacement (if necessary) of associated spares viz bleed valves, AOQC valves, SOQC valves, pressure guage, Ventilation valves, ventilation flaps, dampers. Associated spares to be provided by firm. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached | Proving of Citadel Cluster by Air Pressure Testing of above water compartment Citadels including blanking, rectification of associated structural defects / Minor repairs to Door& Hatches, Repair/ refurbishment or replacement (if necessary) of associated spares viz bleed valves, AOQC valves, SOQC valves, pressure guage, Ventilation valves, ventilation flaps, dampers. Associated spares to be provided by firm. Test pressure: 0.2 to 0.4 kg/sq.cm.as per QIS attached |
| 36 | Radiography Test of welds, Carry out RT of welds as per QIS attached | Radiography Test of welds, Carry out RT of welds as per QIS attached |
| 37 | Ultrasonic Test of welds, Carry out UT of welds as per QIS attached | Ultrasonic Test of welds, Carry out UT of welds as per QIS attached |
| 38 | Removal of chock fasting of old helo grid followed by unfastastening of helo grid top and bottom plates and carry out necessary repairs.as per QIS attached | Removal of chock fasting of old helo grid followed by unfastastening of helo grid top and bottom plates and carry out necessary repairs.as per QIS attached |
| 39 | Fitment of helo grid with helo deck plate post boxing up of helo grid (Top & bottom plates). as per QIS attached | Fitment of helo grid with helo deck plate post boxing up of helo grid (Top & bottom plates). as per QIS attached |
| 40 | Chock fasting of helo grid, Chock fasting of helo grid (with material).as per QIS attached | Chock fasting of helo grid, Chock fasting of helo grid (with material).as per QIS attached |
| 41 | Strainers, Removal, Repairs & Fitment of Strainers.as per QIS attached | Strainers, Removal, Repairs & Fitment of Strainers.as per QIS attached |
| 42 | Spurn water Coaming, Repair / renewal of Spun water coaming including degutting and regutting.as per QIS attached | Spurn water Coaming, Repair / renewal of Spun water coaming including degutting and regutting.as per QIS attached |
| 43 | Fabrication Hand Rails & fixed Guard Rails, Cutting and welding of guard rails and hand rails including brackets& associated fittings including degutting/ regutting and supply of bolts as per QIS attached | Fabrication Hand Rails & fixed Guard Rails, Cutting and welding of guard rails and hand rails including brackets& associated fittings including degutting/ regutting and supply of bolts as per QIS attached |
| 44 | Fabrication of Portable Guard Rails & Shoes Portable guard rails, Shoes & assoiated fittings mfg/repair and welding.as per QIS attached | Fabrication of Portable Guard Rails & Shoes Portable guard rails, Shoes & assoiated fittings mfg/repair and welding.as per QIS attached |
| 45 | Fitment of bonding straps, Welding of bonding straps including degutting and regutting as per QIS attached | Fitment of bonding straps, Welding of bonding straps including degutting and regutting as per QIS attached |
| 46 | Brazing assistance in shopfloor/onboard and testing of repairs by DPT / Pressure Testing, Certified by MFAB.Certified by MFAB | Brazing assistance in shopfloor/onboard and testing of repairs by DPT / Pressure Testing, Certified by MFAB.Certified by MFAB |
| 47 | Titanium welding. TIG welding assistance for Ti/Cu-Ni/silver/Alu.in shopfloor / onboard and testing of repairs by DPT / Pressure Testing, Certified by MFAB.Certified by MFAB | Titanium welding. TIG welding assistance for Ti/Cu-Ni/silver/Alu.in shopfloor / onboard and testing of repairs by DPT / Pressure Testing, Certified by MFAB.Certified by MFAB |
| 48 | Insitu Repairs of Submarine Casings/ Fin flaps, locking mechanisum of casing/ fin flaps, hinges and all associted spares to be provided by firm.as per QIS attached | Insitu Repairs of Submarine Casings/ Fin flaps, locking mechanisum of casing/ fin flaps, hinges and all associted spares to be provided by firm.as per QIS attached |
| 49 | HTS Studs. Renewal of HTS Studs Post tapping.as per QIS attached | HTS Studs. Renewal of HTS Studs Post tapping.as per QIS attached |
| 50 | Pressure testing of Naval Pipe and Hawse Pipes including repairs, blanking and detection/rectification of structural leaks. Test pressure:0.3 Kg/Sqcm. as per QIS attached | Pressure testing of Naval Pipe and Hawse Pipes including repairs, blanking and detection/rectification of structural leaks. Test pressure:0.3 Kg/Sqcm. as per QIS attached |
| 51 | Removal & Fitment/Replacement of Sonar Dome (GRP/TITANIUM). (a) Removal of old fairing plates.(b) Removal of Sonar Dome.(c) Preparation of flange seal for fitment of New Sonar Dome.(d) Hoistage & Alignment for fitment of New Sonar Dome.(e) Torque tightening of bolts.(f) Water tight test of New Sonar Dome.(g) Fitment of fairing plates. as per QIS attached | Removal & Fitment/Replacement of Sonar Dome (GRP/TITANIUM). (a) Removal of old fairing plates.(b) Removal of Sonar Dome.(c) Preparation of flange seal for fitment of New Sonar Dome.(d) Hoistage & Alignment for fitment of New Sonar Dome.(e) Torque tightening of bolts.(f) Water tight test of New Sonar Dome.(g) Fitment of fairing plates. as per QIS attached |
| 52 | Repairs/Refurbishment/Removal & fitment of submarine Casing, casing bulb bar and frames along with structural repairs including casing flaps in each casing (including De-gutting and re-gutting of clamps) (including lowering & housting of casing using certified slings, belts and D-Shackles) Approximate weight: 3 to 5 tons per casing.as per QIS attached | Repairs/Refurbishment/Removal & fitment of submarine Casing, casing bulb bar and frames along with structural repairs including casing flaps in each casing (including De-gutting and re-gutting of clamps) (including lowering & housting of casing using certified slings, belts and D-Shackles) Approximate weight: 3 to 5 tons per casing.as per QIS attached |
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