Bids Are invited for Repair, Maintenance, And Installation Of Plant/ Systems/Equipments (Version 2) - Onboard Ins Tabar At Nd (Mbi); Routines On Deep Sea Seal, Rudder, Stabiliser And Underwater Valves Ins Tabar; Service Provider - Degutting Of Guards

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Bids Are invited for Repair, Maintenance, And Installation Of Plant/ Systems/Equipments (Version 2) - Onboard Ins Tabar At Nd (Mbi); Routines On Deep Sea Seal, Rudder, Stabiliser And Underwater Valves Ins Tabar; Service Provider - Degutting Of Guards, Pipelines, Fittings And Associated Fittings To Access Deep Sea Seal Assembly. , Opening Of Deep Sea Seal Housing And Complete Dismantling Of Seal Assembly, Mantex. ‘O Cords, Inflatable Seal And Associated Sealing Elements. , Thorough Cleaning Of Seal Housing, Liner And Mating Surfaces And Seal Seating Area. , Inspection Of Shaft Liner, Seal Seating Area And Housing For Wear, Scoring And Corrosion, Repair/Refurbish Defects. , Renewal Of Mantex Packing, O Cords And Inflatable Seal With New Fittings (Spares Will Be Provided By Dockyard)). , Inspect And Renewal Of Fasteners, Studs, Mounting Threads And Gaskets. , Reassembly Of Seal Assembly With Correct Clearances And Alignment. , Refitment Of All Removed Pipeline/Fittings. , Pressure Testing Of Inflatable Seal System And Functional Test And Leak Test Is To Be Carried Out, Repair Defects If Any. , Dismantle The Existing Gland Assemblies Of Port & Starboard Rudders Comprising Of Planetary Gear Arrangement , Overhauling Of Planetary Gear Arrangement , Removal Of All Old Gland Packing Completely From Stuffing Boxes Ensuring No Remnants Remain Inside. , Clean The Stuffing Box Gland Follower & Stock Surfaces Thoroughly Using Approved De-Greasing Agent To Remove Dirt, Rust, Oil & Old Packing Traces. , Inspect The Following Components For Wear Deformation Or Damage Gland Follower & Gland Body Stuffing Box Bore & Stealing Surfaces Shaft Area In Way Of Gland Packing Gland Pressing & Securing Arrangement For Free Movements And Uniform Pressure Application Ensure Securing Arrangements (Studs Bolts, Nut & Washers) Are In Sound Condition And Properly Aligned. , Check The Gland Pressing Arrangements For Free Movement & Uniform Pressure Application Ensure Securing Arrangements Are In Sound Condition & Properly Aligned , Carry Out Repair/Replacement As Required In Defective Pressing & Securing Arrangement Including Re-Tapping Of Damaged Threads. Replacement Of Corroded Or Worn Fasteners Correction Of Distorted Gland Follower Faces Or Pressing Plates. , Apply Suitable Marine Grade Lubricant Or Grease To The Packing Area & Shaft Prior To Installation. , Install New Gland Packing Ensure Correct Numbers Of Turns & Staggered Joint Placement (Packing Will Be Provided By Naval Dockyard Mumbai) , Refit Gland Packing Follower & Progressively Tighten Securing Bolts In A Crisis - Cross Pattern To Ensure Uniform Compression & Effective Sealing. , Verify Free Movement Of Rudder & Main Shaft After Packing Renewal. , Conduct Leak/Pressure Test Under Supervision Of Ship Staff To Confirm Satisfactory Performance Of Gland Sealing. , After Successful Testing Apply Suitable Corrosion Preventive Compound & Touch-Up Painting On Gland Body & Associated Fittings. , Dismantle The Existing Gland Assemblies Of Port & Starboard Stabilisers. , Removal Of All Old Gland Packing Completely From Stuffing Boxes Ensuring No Remnants Remain Inside. , Clean The Stuffing Box Gland Follower & Shaft Surfaces Thoroughly Using Approved De-Greasing Agents To Remove Dirt, Rust, Oil & Old Packing Traces. , Inspect The Following Components For Wear Deformation Or Damage Gland Follower & Gland Body Stuffing Box Bore & Stealing Surfaces Shaft Area In Way Of Gland Packing Gland Pressing & Securing Arrangement For Free Movements And Uniform Pressure Application Ensure Securing Arrangements (Studs Bolts, Nut & Washers) Are In Sound Condition And Properly Aligned. , Check The Gland Pressing Arrangements For Free Movement & Uniform Pressure Application Ensure Securing Arrangements Are In Sound Condition & Properly Aligned , Carry Out Repair/Replacement As Required In Defective Pressing & Securing Arrangements Including Re-Tapping Of Damaged Threads Replacement Of Corroded Or Worn Fasteners Correction Of Distorted Gland Follower Faces Or Pressing Plates. , Apply Suitable Marine Grade Lubricant Or Grease To The Packing Area & Shaft Prior To Installation. , Install New Gland Packing Ensure Correct Numbers Of Turns & Staggered Joint Placement (Packing Will Be Provided By Naval Dockyard Mumbai) , Refit Gland Packing Follower & Progressively Tighten Securing Bolts In A Crisis - Cross Pattern To Ensure Uniform Compression & Effective Sealing , Verify Free Movement Of Rudder & Main Shaft After Packing Renewal. , Conduct Leak/Pressure Test Under Supervision Of Ship Staff To Confirm Satisfactory Performance Of Gland Sealing. , After Successful Testing Apply Suitable Corrosion Preventive Compound & Touch-Up Painting On Gland Body & Associated Fittings. , Degutting Of Valves (Type - Nrp/ Sdnr 125Mm) Disconnect Pipelines, Actuators, Hand Wheels And Linkages. Remove Foundation Bolts/Studs. Provide Blanking Of Open Pipe Ends/Valve Chest After Removal Tag Type And Location Of Valve. Lift And Transport Valves Safely To Workshop. , Degutting Of Valves (Type - Nrp/ Sdnr 150Mm) Disconnect Pipelines, Actuators, Hand Wheels And Linkages Remove Foundation Bolts/Studs. Provide Blanking Of Open Pipe Ends/Valve Chest After Removal Tag Type And Location Of Valve Lift And Transport Valves Safely To Workshop , Degutting Of Valves (Type - Nrp/ Sdnr 200Mm) Disconnect Pipelines, Actuators, Hand Wheels And Linkages. Remove Foundation Bolts/Studs Provide Blanking Of Open Pipe Ends/Valve Chest After Removal. Tag Type And Location Of Valve. Lift And Transport Valves Safely To Workshop , Repair/Renewal (Type - Nrp/ Sdnr 125Mm) Completely Dismantle/Degut The Valve Including Body, Bonet. Spindle/Stem, Disc, Seat Rings, Bushes, Gland Packing Seals, Fasteners Etc. Clean All Components And Carry Out Detailed Inspection. Renew Defective/Worn Out Parts Such As Spindle, Disc, Seat Rings Bushes, Bearings, Studs, Nuts, Seals And Packing Carry Out Machining, Lapping Of Seats/Discs And Approved Welding/ Build-Up If Required. Replace All Rubber Components And Sealing Elements With New Ones. , Repair/Renewal (Type - Nrp/ Sdnr 150Mm) Completely Dismantle/Degut The Valve Including Body, Bonet, Spindle/Stem, Disc, Seat Rings, Bushes, Gland Packing, Seals, Fasteners Etc. Clean All Components And Carry Out Detailed Inspection. Renew Defective/Worn Out Parts Such As Spindle, Disc, Seat Rings, Bushes, Bearings, Studs, Nuts, Seals And Packing. Carry Out Machining, Lapping Of Seats/Discs And Approved Welding/ Build-Up If Required, Replace All Rubber Components And Sealing Elements With New Ones , Repair/Renewal (Typo - Nrp/ Sdnr 200Mm) Completely Dismantle/Degut The Valve Including Body, Bonet, Spindle/Stem, Disc, Sent Rings, Bushes, Gland Packing, Seals, Fasteners Etc Clean All Components And Carry Out Detailed Inspection Renew Defective/Worn Out Parts Such Ns Spindle, Disc, Soul Rings, Bushes, Bearings, , Reassembly: (Type - Nrp/ Sdnr 125Mm) Reassemble Valve With New Gaskets And Packing Ensure Correct Alignment And Clearances. Lubricate With Approved Grade Lubricants Conduct Hydrostatic Body Pressure Test , Reassembly: (Type - Nrp / Sdnr 150Mm) Reassemble Valve With New Gaskets And Packing Ensure Correct Alignment And Clearances, Lubricate With Approved Grade Lubricants. Conduct Hydrostatic Body Pressure Test. , Reassembly. (Type - Nrp/ Sdnr 200Mm) Reassemble Valve With New Gaskets And Packing Ensure Correct Alignment And Clearances, Lubricate With Approved Grade Lubricants. Conduct Hydrostatic Body Pressure Test , Testing At Workshop (Type - Nrp/ Sdnr 125Mm) Conduct Hydrostatic Body Pressure Test Conduct Sea Leakage Test. Carryout Functional / Operational Testing At 2 Times Of Working Pressure. , Testing At Workshop (Type - Nrp/ Sdnr 150Mm) Conduct Hydrostatic Body Pressure Test. Conduct Sea Leakage Test. Carryout Functional / Operational Testing At 2 Times Of Working Pressure. , Testing At Workshop (Type - Nrp/ Sdnr 200Mm) Conduct Hydrostatic Body Pressure Test Conduct Sea Leakage Test Carryout Functional / Operational Testing At 2 Times Of Working Pressure. , Refitting Onboard (Type - Nrp/ Sdnr 125Mm) Refit Overhauled Valves Onboard With New Joint Gaskets Tighten All Connections And Foundation Bolts. Renew Worn Out Foundation Studs/ Bolts All Fasteners Shall Be Replaced With New Corrosion-Resistant, Marine Grade Fasteners Suitable For Continuous Sweater Exposure, As Per Specification. Reconnect Actuators/Linkages And Restore System. Carry Out System Pressure Testing And Operational Trial Onboard. Rectify Defects If Any. , Refitting Onboard - (Type - Nrp/ Sdnr 150Mm) Refit Overhauled Valves Onboard With New Joint Gaskets Tighten All Connections And Foundation Bolts, Renew Worn Out Foundation Studs/ Bolts. All Fasteners Shall Be Replaced With New Corrosion-Resistant, Marine Grade Fasteners Suitable For Continuous Sweater Exposure, As Per Specification. Reconnect Actuators/Linkages And Restore System Carry Out System Pressure Testing And Operational Trial Onboard. Rectify Defects If Any. , Refitting Onboard (Type- Nrp/ Sdnr 200Mm) Refit Overhauled Valves Onboard With New Joint Gaskets Tighten All Connection And Foundation Bolts Renew Worn Out Foundation Studs/Bolts All Fastener Shall Be Replaced With New Corrosion Resistant Marine Grade Fasteners Suitable For Continuous Sweater Exposure, As Per Specification Reconnects/Linkages And Restore System Carry Out System Pressure Testing And Operational Trial Onboard Rectify Defects If Any.