15A/B
pipeline shutdown, relocating pipeline, installing new pipeline, repair or replacing...
Why stop gas flow?
Used to control gas flow through pipes.
What are Values?
Can be done on cast iron and steel.
What is Bagging?
Use steel fittings for bare and wrapped steel.
What are line stoppers?
Used on plastic pipe near blowing gas.
What is Anti Static spray?
Squeeze off, Valuing, Bags, plugs, water, mud, rags...
What are ways to stop gas flow?
Operate regulator Station values & transmission values.
Who are Pressure Operation personnel?
Visually inspect for tears and excessive wear...
Before installing and inflating?
Can be used on high and low pressure systems.
What are Mechanical stoppers?
Maintains continuous flow of gas around work area.
What is a Bypass System?
Section where shutdown affects other sections...
What is a Feed section?
Must be installed upstream of service regulator.
What is a Service line value?
The diameter of the tapped hole may not be more than 25%.
What is, when tapping a cast iron main?
Primarily used for service replacements...
What is stopping the flow of gas using Plugs?
NR
What is no rework?
Sections where shutdown does not affect other area...
What is an isolated area?
Inability to find value.
What is Value AOC?
You must use bonding cables.
When using bag stopper on steel pipe.
May be necessary to prevent fire or explosion.
What is Emergency Gas Flow Stops?
Gas
What is End of use Application?
400 customers or less, 7 values or less...
What is WG distribution system?
Pipe that receives natural gas from more than one direction.
What is a 2-way feed system?
Improper Bag pressure.
What is Bagging AOC?
Stopping equipment malfunction.
What is Mechanical line stopping AOC?
May be squeezed off by hydraulic steel squeeze offs up to 6".
What is inserted steel or steel pipe?