Quotation Are Invited For Overhauling, Repairing & Coating Of The Dn1200 Pn10 Butterfly

Quotation Are Invited For Overhauling, Repairing & Coat 1032301544Rfx Description Overhauling, Repairing <(>&<)> Coating Of The Dn1200 Pn10 Butterfly 1 Item-00001 Overhauling, Repairing & Coating Of The Dn1200 Pn10 Butterfly Valve Of Najma Ph3 Pumping Station. Please Contact Mr. Noor (04-322943 9) For Further Clarifications. 1.0#Scope Of Work The Butterfly Valve Are Not Working Properly For Which Dewa Intended To Outsource The Repairing & Coating Job In Local Reputed Contractor. #Details Of The Butterfly Valve: ·#Make: ###Rmi Holland ·#Nominal Diamete R: #Dn1200 ·#Pressure Rating:#Pn10# Scope Of Works A.#Repairing/Overhauling Of The Complete Butterfly Valve B.#Replacement Of The All Defective Spares Like- O-Ring, Shaft Key Etc. C.#Replacement Of Sealing Ring & Bush, If Indeed Requires. D.#Trueness Check Of Dr Ive Shaft & Short Shaft, If Requires Repairing Of The Shafts E.#Repairing & Overhauling Of Gearbox And Replacement Of The Necessary Spares, If Deemed To Be Replaced. F.#Functional & Pressure Test Of Butterfly Valve At Contractor Premises. G.#Operational Test Of Th E Butterfly Valve Installed At Dewa Pipeline. 2.0#Prior To Submission Of Quotation, The Following Shall Be Determined Carefully: A .#The Contractor Shall Visit The Site And Make Himself Fully Familiar With The Work Scopes, Complexities, Etc., Before Submitting Th E Quotation. B.#Dewa Will Not Accept Any Claim For Extras Beyond The Order Rates / Prices During And After The Execution Of Work Ord Ered. C.# The Contractor Should Submit The Time Schedule /Bar Chart Indicating Each Activity. D.#On Completion Of The Work, The Insp Ection Checklist Of Quality Procedures, Wherever Applicable Should Be Filled In And Submitted. 4.0#Take Over On Completion Of All Work Within The Scope Of The Contract, For Acceptance Of The Maintenance Work, Contractor Shall Notify Dewa In Writing. A Certificat E Of Completion Will Be Issued By Dewa On Final Inspection Only When The Contract Work Is Deemed To Have Been Taken Over By Dewa Aft Er Necessary Condition Monitoring Checks Wherever & Whenever Required. 5.0#Warranty A.#All The Work Carried Out Shall Carry A Warranty For 8000 Hours Of Operation Or 1 Year Whichever Is Earlier. B.#The Guarantee Will Take Effect From The Date Of Takeover By Dewa Of The Job Carried Out By The Contractor. C.#When A Defect Is Noticed During The Period Of Warranty, The Contractor Must Recti Fy The Defect Within A Reasonable Amount Of Time Fixed By Dewa With No Claim Or Compensation. 6.0#Documents: # On Satisfactory Com Pletion Of The Work & Handing Over, The Contractor Should Submit The Following To Dewa. ## A.#Inspection R Eport. B.#Repair/Action Report. C.#Method Statement Of The Repairing Works. D.#Photos Of Parts Of The Valve Before/After Repairing. E.#All Test Reports. Specification For Internal Coating Of Valve 1.1#Surface Preparation Before Applying Any Coating, The Co Ntractor Has To Do Necessary Surface Preparation By Sand Or Grit Blasting Or Any Other Suitable Mechanical System To Remove All Rust & Loose Materials. After Sand Blasting The Contractor Has To Intimate Dewa Engineer For Inspection Of The Surface Before Applying A Ny Coating. During Sandblasting It Is Required To Protect All Machined Surface Seat Area And All Other Critical Areas And Parts Fro M Damage By Suitable Method. Buildup/ Filling Of Erroded/Pitted Surface The Supplier Has To Buildup Eroded Surface By Suit Able Composite Materials Up To Original Level Before Applying Any Coating. The Composite Material Shall Have The Following Propertie S: ·#The Curried Composite Must Be Suitable For Continuous Immersion In The Following Chemicals At 21 0C (70 0F): Ferric Chloride, 10% Hydrochloric Acid, 10% Sulfuric Acid, 5% Nitric Acid, 50% Sodium Hydroxide And 28% Ammonium Hydroxide. ·#The Composite Shall Sho W No Blisters When Exposed To De-Mineralized Water In An Astm C 868 Corrosion Test At 43 0C (110 0 F) For A Minimum Period Of 6 Mont Hs. ·#Adhesion Of The Composite Per Astm D1002 Shall Be Greater Than 183 Kg/Cm2 (2,600 Psi) ·#The Curved Composite Must Meet Or Exce Ed The Following Physical Requirements: Compressive Strength (Astm D 695) 914 Kg/Cm2 (13,000 Psi). Tensile Strength (Astm D 638) 431 Kg/Cm2 (6,136 Psi) Flexural Strength (Astm D 790) 620 Kg/Cm2 (8,800 Psi) Flexural Modulus (Astm D 790) 6.9 X 104 Kg/Cm2 (9.87 X 105Psi). During The Phases Of Surface Preparation, Application, And Curing, Environmental Conditions Will Require Careful Monitori Ng And May Require Supplemental Controls. Critical Areas Of Concern Are Relative Humidity, Dew Point, Surface Temperature Of The Sub Strate, And Air Purity. Contractor Shall Carryout All The Procedures In A Controlled Environment In Accordance With The Latest Stand Ards And Procedures. Final Internal Coating After Surface Preparation And Filling Up The Eroded Surface It Is Required To Apply The Ceramic Reinforced Composite Materials For Final Coating. The Composite Coating Materials Shall Have Following Properti Es: ·#The Cured Composite Must Be Suitable For Continuous Immersion In The Following Chemicals At 210C(700F): Ferric Chloride, 10% Hydrochloric Acid, 10% Sulfuric Acid, 5% Nitric Acid, 50% Sodium Hydroxide And 28% Ammonium Hydroxide. ·#The Composite Must Exceed 10,000 Hrs In An Astm B 117 Salt Fog Test (Scored) With No Signs Of Under Film Corrosion At The Score. ·#The Composite Must Pass As Tm G 8 Cathodic Disbandment Test For Not Less Than 60 Days. ·#The Composite Shall Show No Blisters When Exposed To Demineralized Wa Ter In An Astm C 868 Corrocell Test At 430C (1100F) For A Minimum Period Of 6 Months. ·#Adhesion Of The Composite Per Astm D 4541 S Hall Be Greater Than 140 Kg/Cm2 (2,000 Psi). ·#The Linear Co-Efficient Of Thermal Expansion (Astm C 531) Shall Not Exceed 5.0 X 10- 5 Cm/Cm/0C (2.8 X 10-5 In/In/0F) ·#Thickness Of Coating 400-500 Microns. ·#Surface Finishing Of The Coating Shall Be Smooth Glass Surface Finished And Abrasion Resistant. ·#The Cured Composite Must Meet Or Exceed The Following Physical Requirements: Compressive Strength: (Astm D 695) 844 Kg/Cm2 (12,000 Psi) Tensile Strength: (Astm D 638) 240 Kg/Cm2 (3,420 Psi) Flexural Stren Gth: (Astm D 790) 562 Kg/Cm2 (8,000Psi) ·#The Composite Shall Be Authorized For Usda Application For Incidental Food Contact. ·#T He Composite Is Required To Have Potable Water Certification From International/Local Authorities, Wras (Water Regulatory Advisory S Ociety). External Coating Epoxy Powder Coating In Blue Colour At Least 300-400 Micron Thick For The Valves. All Necessar Y Surfaces Preparations To Be Done Before Coating. Warranty The Supplier Has To Provide At Least 24 Months Of Service War Ranty Against Any Damage/ Defects For The Coating. If The Coating Is Found To Fail Within This Period The Supplier Has To Recoat The Equipment At Free Of Charge To Dewa. Method Statement The Supplier Has To Provide Method Statement Of Coating And Material Details Along With Their Offer For Technical Evaluation And Approval. Inspection At Site Before Delivery Of Coated Valves, The C Oating Works To Be Inspected By Dewa Engineer At Supplier Workshop For Final Acceptance. Contractor Shall Provide With All Required Necessary Inspection Tools As Required On Site. Reports & Documents During Delivery The Following Documents To Be Subm Itted. 1.#Material Data Sheet. 2.#Photo Of Needle Valve Before And After Coating. 3.#Waras Certificate For Coating Materials. 4.#Al L Test Reports. 2 Item-00002 Line Boring & Replacement Of Shaft Sleeves Of The Dn1200 Pn10 Butterfly Valve Of Najma Ph3 Pumping Station. Contact Mr. Noor (04-32 29439) For Further Clarification Scope Of Works: 1. Line Boring On The Valve Sleeves Areas And Installation Of New Sleeves On The Both End Of The Valve. 2. Assembly Of The Complete Valve 3. Hydro Testing Of The Valve 4. Warranty 2Years 2 Set 3 Item-00003 Machining & Replacement Of Retaining Ring Of The Dn1200 Pn10 Butterfly Valve Of Najma Ph3 Pumping Station. Contact Mr. Noor (04-3229 2 Set 439) For Further Clarification Scope Of Works: 1. Machining And Replacement Of The Valve Retaining Ring. 2. Assembly Of The Comp Lete Valve 3. Hydro Testing Of The Valve 4. Warranty 2Years 4 Item-00004 Machining & Replacement Of Seat Ring Of The Dn1200 Pn10 Butterfly Valve Of Najma Ph3 Pumping Station. Contact Mr. Noor (04-3229439 ) For Further Clarification Scope Of Works: 1. Machining And Replacement Of The Valve Seat Ring (Ss316l). 2. Assembly Of The Comp Lete Valve 3. Hydro Testing Of The Valve 4. Warranty 2Years 2 Set 2 Ea Standard Terms & Conditions 1) Prices Should Be Ddp Delivery Duty Paid At Dewa Stores. 2) Quotation To Be Submitted Only In Local Currency U.A.E Dirhams 3) Dewa Standard Payment Terms Is 30 Days Credit From The Date Of Acceptance Of Material 4) No Dewa Staff Or His Or Her Relatives Up To Third Degree Should Have Ownership Or Partnership In Your Company, And Your Participation In Dewa Tenders / Rfqs Should Not Constitute A Conflict Or Perceived Conflict Of Interest. Supplier Registration: Https://Srm.Dewa.Gov.Ae/Irj/Portal/Anonymous/Regis Tender Link : Https://Www.Dewa.Gov.Ae/Api/Rfxdownload/Get/2332301738