Bids Are invited for Repair And Overhauling Service - Repir And Pressure Testing Of Auxiliary Boiler And Ass ... in India

Work Detail

Bids Are invited for Repair And Overhauling Service - Repir And Pressure Testing Of Auxiliary Boiler And Associated Systems Onboard In Ship; Any Other Suitable Brand; No; Buyer Premises - Degutting.Degutting Of Outer Casing Of Boiler Along With Pipes And Valves That May Come In The Way Of Access As Indicated But Not Limited To The List Appended Bellow:- , Degutting.(I) Steam Valve And Pipes Fitted Along The Length Of The Boiler The Casing (All Sides) , Degutting.(Ii) Opening Up To Steam And Water Drum Of Both Boilers , Degutting.(Iii) Breaking Of Refractory For Tube Access And Renewal , Degutting.(Iv) Removal And Blanking Of All Mountings Welded Valves Need To Be Cut And Removed And Post Pressure Testing The Same Have To Be Reinstalled Overhauling Of Mounting Is Not Part Of Present Scope All Welding Undertaken In Pipes And Systems Of The Boiler Up To And Including The First Weld Seam After The Mounting Have To Be Cleared By Radiography Cleared Prior To Steaming Qualified Welders With Adequate Certification Are Essential Defects In Radiography Will Have To Be Liquidated By Rework (At No Additional Cost) , Tube Preparation.(I) De-Greasing Tubes On Receipt, (Ii) Pressure Testing Of Tubes: All Tubes Are To Be Pressure Tested To 10 Kg Prior To Preparation For Use Onboard, Only Tubes That Clear This Test Are To Be Utilised. , Tube Renewal.Cutting Of Tubes: Generating Row, Screen Row And Fire Row Tubes To Be Cut Without Effecting Steam Drum Alignment. (Cutting Of Tubes At 3 Distance From Drum Surface To Avoid Damage And Overheating Of Drum Plates) (I) Keep One Original Tube Per Each Row And Exact That For Manufacture Template. (Ii) Job To Be Undertaken In Minimum 03/04 Batches To Ensure The Steam Drum In Always Well Supported. (Iii) Splitting Of Tubes And From Steam Drums. (Iv) Drifting Of Tubes From Water Drums. (V) Templates Manufacturing As Per Original Tubes Extracting Bending Of Tubes Post Retubing All Templates To Handover To Ndv. , Tube Renewal. (Vi) Tube Bending: (Manual Are Cnc Bending To Confirm With Mil Std 1627C) , Tube Renewal.Tube Installation (Activity To Be Undertaken In Batches As Brought Out In 2(A)). Fitment Setting Rolling, Expanding And Belling Of Tubes From Both Steam And Water Drums And Specified In The Boiler Manual (All Special Tools Specified To Require As Indicated In The Boiler Manual Are Firm Liability (Care To Be Taken On Each Tube Rows Must Be In One Exist, Side Water Wall (Sww) And Screen Row- Tube Installation. The Headers (Welding To Confirm With Milstd-278 As Indicated In The Boiler Repair Manual) , Water Pressure Test.The Firm Will Be Required To Offer Water Pressure Testing Of The Boiler Up To 1.5 Time Working Pressure (10 Kg/Cm2) With High Pressure Testing Pump (Firm To Arrange For The Same). Firm Will Be Required To Resolve All Defect/Observations. , Refractory.Laying Out All Refractory And Tile Work In Accordance To The Procedure Laid Out In The Ships Boiler Repair Manual (Apart From Burner Front Monolith) , Boiling Out.Post Major Renewal Of Tubes Both Boilers Require To Undergo Boiling Out Iaw Procedure Indicated In Tech Documentation List , Regutting.Regutting Of Internal Casing And Fitment Of All Removal And Cut Casing Doors , Regutting.Regutting Of External Casing With All Insulation, Pipes And Valves That Were Degutted , Regutting.Boxing Up Steam Drum And Water Drum After Wpt And Clearance By Cbiu And Ss For Final Time Prior To Steaming , Miscellaneous.Special Tools : Firm Will Be Responsible For Manufacture/Positioning Of All Special Tools Required For The Job. All Tools Manufactured/Procured For The Job And Coated As Service Material Will Be Considered Property Of The Indian Navy And Will Require To Be Handed Over On Completion On The Retubing. , Material To Be Used.Vendor Supplied Material: (I) Insulation Material For The External Casing In Accordance With Technical Manual Held Onboard As Per S Le. Firms May Recommend Any Alternate Material, That Is Considered Superior To That Indicated In The Specifications And The Same Will Be Accepted After Due Validation Bathe Nd(V). , Material To Be Used.(Ii) Ms Plates For Internal And External (Gas & Air) Casing Where Ever Renewal Is Required By Thickness/As Part Regutting (Iaw Plate Thickness And Specification Indicated In Document At Para 2(A) & (B) , Documentation.Firm Will Require To Submit The Following:-(I) Details Of All Procedures Undertaking For The Retubing Along With Photographs. (Ii) Detailed Report On The Radiography And Metallography That Was Undertaken At Various Location So That The Same Can Be Kept On File. (Iii) Report On The Brick Laying And Refractory, Indicating All Special Tools Utilized For The Same. (Iv) List And Drawing Of All Special Tools Utilized For The Activity. (V) Copies Of All Additional Documentation That Was Sourced From Oem/Allied Firms That Were Used For The Activity. , Degutting And Regutting Of Hotwell Tank And Associated System.(A) Degutting , Regutting Of All System Lines Connected To Hotwell Tank. B) Degutting , Regutting Of All System Valves And Cocks Connected To Tank. (C) Removal Fitment Of Gauge Glass Lines. (D) Degutting, Regutting Of Foundation And Shifting To Shop Floor. Refurbishment Of Foundation. (E) Lifting Of Tank From Foundation And Shifting To Shop Floor. (F) Internal Cleaning And Survey Of Tank. (G) Regutting Of All System Lines And Valves Connected To Tanks And Refitment Of Tank At The Foundation.

Contact Information