content Review questions Introduction 2 Participate in discussions demonstrations and handson activities that will enable you to Identify mechanical joints leak clamps on caulked bell and spigot joints specific to cast iron ID: 813576
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Slide1
Piping
Slide2Review online course
content.Review questions.
Introduction
2
Slide3Participate in discussions, demonstrations, and hands-on activities that will enable you to:
Identify mechanical joints, leak clamps on caulked bell and spigot joints; specific to cast iron pipe.
Explain the handling, lowering in, and fitting of steel pipe in a ditch, after excavation.Prepare pipes with threaded fittings and inspect completed
joints.
Workshop Objectives-Part 1
3
Slide44
Piping
Part 1-Cast Iron
Slide5Characteristics and uses
Tools used
Vocabulary terms and acronymsBell and spigot jointsGasket
Mechanical leak clamps
Jute and lead
Best safety practices
“Good” repairs-“Bad” repairs
Introduction To Cast Iron Pipe
5
Slide6Conducting a leak survey
Preparing pipe to seat a gasketInstalling a mechanical leak clamp
Soap test for leaksRepairing a leak clamp
Importance of
maintenance records
Activity Worksheet #1
Evaluate, Repair And Test For Leaks
6
Slide7Encapsulating a joint
Correct tools and PPE
Steps to encapsulate a jointPrepare
Expose
the joint
CleanInspect
Attach a mold
Apply sealant and pressurize
Inspect and test
Activity
W
orksheet #2
Sealing Cast Iron Pipes
7
Slide8Requirements for installing steel transmission pipelines
Pipe materials-calculating design formulaCoatings
Tape Shrink
Sleeve systems
Pipe handling and transit guidelines
Pipe protection
Backfill materials
Installing Steel Pipes in a Ditch
8
Slide9Correct tools and PPE
Joining pipe by welding Joining pipe mechanically
Bolted couplingBoltless couplingHydraulic coupling
Flanges
Characteristics-uses
Insulated couplingsNon insulated couplings
Ways to Join Pipe
9
Slide10Review safety practices and guidelines
Correct tools and PPEPreparing and inspecting the trenchInstalling the pipe
Handling excavated materialsRequired documentation
Activity Worksheet #3
Underground Installation
10
Slide11Dry Seal
Wet SealLeftover ThreadsMale Fittings
Female FittingsImperfect ThreadsGas-tight Seal
Liquid-tight seal
Key Pipe Terms
11
Slide12Requirement and limitation of using threaded joints
National pipe thread standardsCorrect and incorrect uses of threaded pipe
Correct tools and PPEPreparing the pipesInspection procedures
Activity Worksheet #4
Joining Threaded Pipe
12
Slide1313
Piping
Part 2-Plastic Pipe
Slide14Participate in discussions, demonstrations, and hands-on activities that will enable you to:
Identify the characteristics of plastic pipe.Install a plastic pipe.Install a tracer wire.
Workshop Objectives
14
Slide15Installation methods
Proper handling, storage, and transportationTypical trench requirementsPhysical characteristics
ASTM numberOutside diameterThickness
Introduction To Plastic Pipe
15
Slide16Cutting Pipes
Correct tools and PPECorrect cutting techniqueJoining Pipes
Types of joins usedSocket heat fusionElectrofusion
Butt fusion
Mechanical joint
Cutting and Joining Plastic Pipes
16
Slide17Stringing the pipe and minimizing stress
Grading the service lineLowering the pipe into the trenchBackfill materials and cover requirements
Pressure testingActivity Worksheet #1
Installing Plastic Pipe
17
Slide18What it is and what it does
Problems when a tracer wire is not usedCorrect tools and PPE
Correct placementInstalling the tracer wire
Opening trench
Bore Installation
Plow-in/planting installation
Testing
Activity Worksheet #2
Tracer Wire
18
Slide1919
Piping
Part 3-Fittings and Couplings
Slide20Participate in discussions, demonstrations, and hands-on activities that will enable you to:
Join pipes successfullyMake a stab fittingFollow the correct processes and procedures to create commonly used joints.
Butt-fusionHydraulic butt heat fusion
Sidewall heat fusion
Electrofusion process
Workshop Objectives
20
Slide21Features and characteristics
OSHA requirements
Correct tools and PPE
How to correctly install a stab fitting
Inspect the fitting
Check for leaks
Activity Worksheet #1
Stab Fittings
21
Slide22Commonly used to join pipes
Mechanical
Transition Types – per installation requirements
Bolted (pipes over 2 inches)
Hydraulic (pipes 2-4 inches)
Mechanical
Insulated couplings
Non-insulated couplings
Selecting the right coupling for the job
Material
Diameter
Wall Thickness
Operating Pressure
Visually inspect and prepare pipe
Compression Couplings
22
Slide23Installing
AssembledNon-assembledCathodic protection
Visual inspectionTesting for leaksSoap test
CGI
Activity Worksheet #2
Install Compression Couplings
23
Slide24Typical usage
Heat fusionSaddle heat fusion
Installation requirementsProtective measures Gaseous atmosphere
Electrical precautions
Electrostatic precautions
Manual Butt Heat Fusion
24
Tools and PPE
Prepare the heat iron
The fusion process
Cooling time
Final inspection
What to look
for: cooled joint,
melt bead
Activity Worksheet #3
Slide25Typical usage
Tools and PPEThe fusion process Hydraulic controls/determine drag
Carriage pressure Facing pressureFusion pressure
Drag pressure
Cooling time
Final inspectionWhat to look forActivity Worksheet #4
Hydraulic Butt Heat Fusion
25
Slide26Typical usage
Tools and PPEThe fusion process Cooling timeFinal
inspectionWhat to look forDestroying bad fittings
Activity
W
orksheet #5
Sidewall Heat Fusion
26
Slide27The electrofusion process
Typical usageTie-insRepairs
Tools and PPEElectrofusion processorElectrofusion fittings
Clamping tool
Pipe cutting tool(s)
Power source Pipe cutting tools
Scraper
Electrofusion
27
Determine stab depth
Prepare the pipe
The fusion process
Cooling time
Leave clamping device in place
Final
inspection
Troubleshooting
Activity Worksheet #6
Slide28Occupational Safety and Health Administration (OSHA)
Compressed Gas Association (CGA) US Department of Transportation (FHWA)
Code of Federal Regulations:§192.53 General§192.271 Scope.
§192.63 Marking of materials.
§
195.112 New pipe. §192.275 Cast Iron Pipe§192.143 General requirements.
§192.277 Ductile Iron Pipe.
§195.214 Welding procedures.
§192.279 Copper Pipe.
§192.225 Welding procedures.
Sources
28
Slide29Code of Federal Regulations:
§192.59 Plastic pipe. §192.121 Design of plastic pipe. §192.123 Design limitations for plastic pipe.
§192.143 General requirements §192.151 Tapping.
§192.159 Flexibility.
§192.273 General.
§192.281 Plastic piping joining.§192.283 Plastic pipe: procedures.§192.285 Plastic pipe: Qualifying persons to make joints.
Sources, continued
29
Slide30Code of Federal Regulations:
§192.287 Plastic pipe: Inspection of joints§192.307 Inspection of materials.
§192.311 Repair of plastic pipe§192.321 Installation of plastic pipe. §192.513 Test requirements for plastic pipelines.
§192.627 Tapping pipelines under pressure.
§1926.651 Specific excavation requirements.
§1926.652 Requirements for protective systems.
Sources, continued
30
Slide31Questions
CommentsOpen Discussion
31