Corrosion Control in Distribution Pipes - Ohiowater.org
Corrosion Control in Distribution Pipes - Ohiowater.org Corrosion Control in Distribution Pipes - Ohiowater.org
Potentials (millivolts)00+0500+1000+1500+2000+2500+3000+3500+4000+4500+5000+5500+6000+6500+7000+7500+8000+8500+9000+9501+0001+0501+1001+1501+2001+2501+3001+3501+4001+45Chainage00+0500+1000+1500+2000+2500+3000+3500+4000+4500+5000+5500+6000+6500+7000+7500+8000+8500+9000+9501+0001+0501+1001+1501+2001+2501+3001+3501+4001+45CIS Survey8" Pipeline Rivana River N to SClose Interval Survey Data-2500Chainage-2500Potential (millivolts)-2000-2000-1500-1500-1000-1000-500-50000Close Interval DataInterrupted SurveyClose Interval DataPG/WFA Survey
Polyethylene Encasement- Follow manufacture’s and AWWA recommendations toinsure proper installation of polyethyleneencasement.- In extremely corrosive areas, additional methods (bondingof joints, cathodic protection, may be required).
- Page 1 and 2: Corrosion Control for Water &Wastew
- Page 3 and 4: Corrosion
- Page 5 and 6: Corrosion Cell on Buried PipingCath
- Page 8: Water(Electrolyte)Anodic Area(Corro
- Page 11 and 12: Cast (Grey) IronFailuresGraphitizat
- Page 13 and 14: Ductile IronPitting (concentrated)c
- Page 15 and 16: PRACTICAL GALVANIC SERIESMaterialPo
- Page 17 and 18: Copper Service Connections
- Page 19 and 20: Water Wells
- Page 21 and 22: Gate Valve Corrosion
- Page 23 and 24: Corrosion Caused by DifferentialAer
- Page 25 and 26: Impressed Current CP System on Oil/
- Page 27 and 28: Stray Current
- Page 29: Computerized Potential Logging Surv
- Page 33 and 34: Galvanic Anode on PolyethyleneEncas
- Page 35 and 36: Cathode(Protected)Anode
- Page 37 and 38: Thermit Weld to Pipe
- Page 39 and 40: Access to Pipe
- Page 41 and 42: Temporary Fix ?
- Page 43 and 44: Water Leak Repair KitIncludes:Insta
- Page 45 and 46: Cathodic Protection of Metallic Fit
- Page 47 and 48: Meter Vaults(Keep dry if possible)
- Page 49 and 50: For New or Refurbished Tanks
- Page 51 and 52: Horizontally Submerged Cathodic Pro
- Page 53 and 54: Corrosion of Clarifier Center Well
- Page 55: Depleted & Refurbished CathodicProt
- Page 58 and 59: Investigative Structure (Existing)C
- Page 60 and 61: TrafficDisruptionsWater LossFirePro
- Page 62 and 63: Design Decision ModelFor Ductile Ir
- Page 64 and 65: Computerized Potential Logging Surv
- Page 66 and 67: Vertically Suspended High Silicon C
- Page 68: Design Decision ModelFor Ductile Ir
- Page 71 and 72: The estimated annual cost to repair
- Page 73 and 74: New PipingPHASE I- Obtain drawings
- Page 75 and 76: Lower Stress Area(Cathode)PipeThrea
- Page 77 and 78: Insituform
Polyethylene Encasement- Follow manufacture’s and AWWA recommendations to<strong>in</strong>sure proper <strong>in</strong>stallation of polyethyleneencasement.- In extremely corrosive areas, additional methods (bond<strong>in</strong>gof jo<strong>in</strong>ts, cathodic protection, may be required).