Procedures for Tapping Steel
Pressure reductions are necessary for?
Bagging off operations.
This must be installed in the Distribution service when necessary?
An EFV.
Until physical verification can be made in the field all gas pipelines are considere______?
Live.
Reinforcement methods for cast iron pipe connections include?
Split Sleeves, Tapping Sleeves & Valves.
After stopping off a steel main soap test these fittings __________, _________ & ___________?
Gauge connections, By pass tap & Nipple and Plug Assembly.
This ___________ __________ is used to assist with gauging depth of plastic pipe?
Plastic Tube.
When tapping you want to verify the proper __________,________ & _______ Relationships?
Tap, Seam & Joint.
Follow manufactures instructions?
Before field tapping.
A sand blaster, grinder or metal file is used to?
Clean the Outside surface of steel pipe.
If the gas is purged to quickly this could trip the?
EFV.
What is Tapping considered?
Its the practice of safely cutting into a pipeline & attaching branch piping without disruption of the flow of the line.
This must be clean & smooth to make a proper seal.
The Cast Iron surface.
Do not use self tapping tees on mains over ________?
12"
Do not use this ___________ for final tightening?
Wrench
Correct Location, Pipe Material, Outside Diameter, Longitudinal Weld Characteristics, Coating & Joint Connections is used to ensure?
That the exposed pipe is the correct one to be tapped.
Clean the outside surface of the pipe by using?
Sand Blaster, Hand Scaling tool, Grinder or Metal file.
Apply pipe joint compound to the threads of the _______________ _________?
The Completion Plug.
Plastic pipe connections are made by?
Tapping Tees, Fabricated Tees & Branch Saddles.
The pipeline to be tapped must be Verified by?
Location, Size, Materials & Coating.
All taps must be?
Soap tested.