Tenders are invited for Complete Overhauling Coating Of Needle Valve Dn450 Pn10 Erhard For Dip2 Emirates Road Pumping Station

Quotation Are Invited For Complete Overhauling Coating Of Needle Valve Dn450 Pn10 Erhard For Dip2 Emirates Road Pumping Station Complete Overhauling Coatin 1032102515Rfx Description Complete Overhauling Coating Of Needle Valve Dn450 Pn10 Erhard For Dip2 Emirates Road Pumping Station More Information Md Nooruddin Dewa Gov Ae 04 32294391 Item 00001 Complete Overhauling Coating Of NeedleValve Dn450 Pn10 Erhard For Dip2 Emirates Pumping Station Please ContactMr Fazalu 04 3229457 For Further Clarifications 1 0 Scope Of Work This Needle Valve Is NotWorking Properly For Which Dewa IntendedTo OutsOurce The Repairing Job In Local ReputedContractor Details Of The Needle Valve Make Erhard Nominal Diameter Dn450 PRessure Rating Pn10 Scope Of WorksA Complete Dismantle Of The ValveAssembly Removal Of The Stuck Shaft FromThe Cylinder RePairing Of The Shaft On The Key Way PlacesAnd Manufacturing Of New Keys Ss316l B Replacement Of The All Defective SparesLike O Rings Retaining Rings Etc C ReplacementOf Defective Shaft Sleeve And Piston Pin AsPer Dismantled Sample D After Repairing 2 EaComplete Assembly Must Be Done WithSynchronization Of The Gear Box To TheShaft So As To Verify The Smooth RotationOf The Shaft WiTh Cylinder E Functional Test Of TheNeedle Valve To The Contractor Premises F Operational Test Of The Needle ValveWith ActuatoR Installed At Dewa Pipeline 2 0 Prior ToSubmission Of Quotation The FollowingShall Be Determined Carefully A TheContractor Shall Visit The Site And Make Himself FullyFamiliar With The Work Scopes Complexities Etc Before Submitting TheQuotation B Dewa Will Not Accept Any Claim For ExtrasBeyond The Order Rates Prices During AndAfter The Execution Of Work Ordered C The CoNtractor Should Submit The Time Schedule Bar Chart Indicating Each Activity D OnCompletion Of The Work The Inspection Checklist Of Quality Procedures WhereverApplicable Should Be Filled In AndSubmitted 4 0 Take Over On Completion OfAll Work Within TheScope Of The Contract For Acceptance OfThe Maintenance Work Contractor ShallNotify Dewa In Writing A Certificate OfCompletionWill Be Issued By Dewa On Final InspectionOnly When The Contract Work Is Deemed ToHave Been Taken Over By Dewa AfterNecessary ConDition Monitoring Checks Wherever Whenever Required 5 0 Warranty A AllThe Work Carried Out Shall Carry AWarranty For 8000 HoUrs Of Operation Or 1 Year Whichever IsEarlier B The Guarantee Will Take EffectFrom The Date Of Takeover By Dewa Of TheJob CarrIed Out By The Contractor C When ADefect Is Noticed During The Period Of Warranty The Contractor Must RectifyThe Defect WithinA Reasonable Amount Of Time Fixed By DewaWith No Claim Or Compensation 6 0 Documents On SatisfactoryCompletion Of The Work Handing Over The Contractor ShouldSubmit The Following To Dewa A Inspection Report B Repair ActiOn Report C Method Statement Of TheRepairing Works D Photos Of Parts Of TheHydraulic Cylinder Before After Repairing E All TEst Reports Specification For InternalCoating Of Valve General These ValvesAre Used In Water Booster PumpingStations The Fluid Handled By These Pumps Valves IsPotable Water Of Maximum Temperature UpTo 50 0C Normally The Water Is Clean ButSome TIme It Is Noticed To Have Sand And Solids InStream From Pipeline 1 2 Scope Of Work 3 4 Collection Transportation TheContracTor Shall Collect The Needle ValveThrough Suitable Pickup Crane MountedTruck From Ems Workshop At Aweer TheContractor Pickup ShaLl Have Suitable And Safe Lifting Sling BeltOf Sufficient Load Capacity Loading AndUnloading Of The Needle Valve To BeCarried OuT By Contractor 4 1 Surface PreparationBefore Applying Any Coating TheContractor Has To Do Necessary SurfacePreparation By SAnd Or Grit Blasting Or Any Other SuitableMechanical System To Remove All Rust Loose Materials After Sand Blasting TheContractoR Has To Intimate Dewa Engineer ForInspection Of The Surface Before ApplyingAny Coating During Sandblasting It IsRequired To ProTect All Machined Surface Seat Area And All Other Critical Areas And Parts FromDamage By Suitable Method Buildup FillingOf ErrOded Pitted Surface The Supplier HasTo Buildup Eroded Surface By SuitableComposite Materials Up To Original LevelBeforeApplying Any Coating The CompositeMaterial Shall Have The FollowingProperties The Curried Composite MustBe Suitable For ContInuous Immersion In The FollowingChemicals At 21 0C 70 0F Ferric Chloride 10 Hydrochloric Acid 10 Sulfuric Acid 5 Nitric ACid 50 Sodium Hydroxide And 28 AmmoniumHydroxide The Composite Shall Show NoBlisters When Exposed To De MineralizedWater In An Astm C 868 Corrosion Test At 43 0C 110 0F For A Minimum Period Of 6 Months Adhesion Of The Composite Per Astm D1002Shall E Greater Than 183 Kg Cm2 2 600 Psi TheCurved Composite Must Meet Or Exceed TheFollowing 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 AstmD 790 6 9 X 104 Kg Cm2 9 87 X 105Psi DuringThe Phases Of Surface Preparation Application And Curing EnvironmentalConditions Will Require CarefulMonitoring And May Require SupplementalControls Critical ArEas Of Concern Are Relative Humidity DewPoint Surface Temperature Of TheSubstrate And Air Purity ContractorShall Carryout All The Procedures In A ControlledEnvironment In Accordance With The LatestStandards And Procedures Final InternalCoating After SUrface Preparation And Filling Up The Eroded Surface It Is Required To Apply TheCeramic Reinforced Composite MaterialsFor Final CoAting The Composite Coating MaterialsShall Have Following Properties TheCured Composite Must Be Suitable ForContinuous ImmerSion In The Following Chemicals At210C 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 AnAstm B 117 Salt Fog Test Scored With NoSigns Of Under Film Corrosion At The Score The Composite Must Pass Astm G 8Cathodic Disbandment Test For Not LessThan 60 Days THe Composite Shall Show No Blisters WhenExposed To Demineralized Water In An AstmC 868 Corrocell Test At 430C 1100F For AMinimum Period Of 6 Months Adhesion Of TheComposite Per Astm D 4541 Shall Be GreaterThan 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 5In In 0F Thickness Of Coating 800 1000 Microns Surface Finishing Of TheCoating Shall Be Smooth Glass SurfaceFinished And Abrasion Resistant TheCured Composite Must Meet Or Exceed The FollowingPhysical Requirements CompressiveStrength Astm D 695 844 Kg Cm2 12 000 Psi Tensile Strength Astm D 638 240 Kg Cm2 3 420 Psi Flexural Strength Astm D 790 562Kg Cm2 8 000Psi The Composite Shall Be Authorized For Usda Application ForIncidental Food Contact The Composite IsRequired To Have Potable WaterCertification FrOm International Local Authorities Wras Water Regulatory Advisory Society External Coating Epoxy Powder Coating In BLue Colour At Least 300 400 Micron ThickFor The Valves All Necessary SurfacesPreparations To Be Done Before Coating Warranty The Supplier Has To Provide At Least 24Months Of Service Warranty Against AnyDamage Defects For The Coating If TheCoatiNg Is Found To Fail Within This Period TheSupplier Has To Recoat The Equipment AtFree Of Charge To Dewa Method StatementThe SuPplier Has To Provide Method Statement OfCoating And Material Details Along WithTheir Offer For Technical Evaluation AndApproval Inspection At Site Before Delivery OfCoated Valves The Coating Works To BeInspected By Dewa Engineer At SupplierWorkshop For Final Acceptance Contractor ShallProvide With All Required Necessary Inspectio2 Item 00002 Repairing Installation Of Seat Ring OfNeedle Valve Dn450 Pn10 Erhard For Dip2Pumping Station Please Contact Mr Fazalu 04 3229457 For Further Clarifications Scope OfWorks 1 Repairing Installation Of SeatRing Rubber 2 Assembly With OverhauledNeEdle Valve Testing 2 Ea3 Item 00003 Repairing Installation Of Bronze PlateGuide Rail Of Needle Valve Dn450 Pn10 Erhard For Dip2 Ers Pumping Station Please ContaCt Mr Fazalu 04 3229457 For FurtherClarifications Scope Of Works 1 Repairing Installation Of Bronze PlateGuide Rail 2 AsSembly With Overhauled Needle Valve Testing 2 Set4 Item 00004 Repairing Installation Of Ss ConnectingPin With Lock Nut Washer Of Needle ValveDn450 Pn10 Erhard For Dip2 Ers Pumping 2 SetStaTion Please Contact Mr Fazalu 04 3229457 For Further Clarifications Scope OfWorks 1 Repairing Installation Of SsConnectiNg Pin With Lock Nut Washer 2 AssemblyWith Overhauled Needle Valve Testing5 Item 00005 Repairing Installation Of Connecting PinBronze Bush Of Needle Valve Dn450 Pn10 Erhard For Dip2 Erps Pumping Station PleaseContact Mr Fazalu 04 3229457 For FurtherClarifications Scope Of Works 1 Repairing Installation Of Ss ConnectingPin Bronze Bush Washer 2 Assembly With OverhauledNeedle Valve Testing 2 Set6 Item 00006 Repairing Installation Of Drive ShaftBronze Bush Of Needle Valve Dn450 Pn10 Erhard For Dip2 Erps Pumping Station Please ConTact Mr Fazalu 04 3229457 For FurtherClarifications Scope Of Wo

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