Corrosion Control in Distribution Pipes - Ohiowater.org
Corrosion Control in Distribution Pipes - Ohiowater.org Corrosion Control in Distribution Pipes - Ohiowater.org
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13.07.2015
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Gas Pipeline(-)Cathodic ProtectionRectifier(+)Anode GroundbedCurrent Discharge(Corrosion)Current Discharge(Corrosion)Water PipelineStray Current Due to Impressed Current CathodicProtection System
Impressed Current CP System on Oil/Gas Lines canCreate Stray Current Problem on Water Lines
- 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: Corrosion Caused by DifferentialAer
- Page 27 and 28: Stray Current
- Page 29 and 30: Computerized Potential Logging Surv
- Page 31 and 32: Polyethylene Encasement- Follow man
- 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
Gas Pipel<strong>in</strong>e(-)Cathodic ProtectionRectifier(+)Anode GroundbedCurrent Discharge(<strong>Corrosion</strong>)Current Discharge(<strong>Corrosion</strong>)Water Pipel<strong>in</strong>eStray Current Due to Impressed Current CathodicProtection System
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