Do gas pipes need insulation?

[Tap dancer]

A few days ago, someone on here said that they did. Is this true?

 

[SimonJohns]

Of course

If you don't it will turn in to LPG in the winter

 

[Dotty]

Whatever you do, never never ever try to thaw them out with a blowtorch. It never ends well!

 

[REDSAW]

2'' lagging minimum or run in 40mm waste pipe works

 

[Roger Welton]

And a decent drop to maintain flow along run

 

[AWheating]

yes they can freeze, if you take them with you when you go to the moon

the price of lagging on the moon is very high tho.

 

[tipintim]

Dont you mean: "DO GAS PIPES NEED IDENTIFICATION"

 

[Howsie]

Gave me the smile I needed this morning.

 

[stevetheplumber]

they need to be protected from corrosion if they are in contact with cement etc ie when buried in screed i often stick some id tape on usually when ive got a few pipes together mainly for my own use

 

[Tap dancer]

It doesn't need to have identification. I can SEE it coming out of the gas meter and running along the wall for 7 metres, without any insulation on it.

 

[wigan_plumber]

the boiling point of gas is -164 degrees why would it need insulation?

 

[SimonG]

There was a thread earlier this week and it was mentioned about gas pipe insulation, I took it that they meant earth bonding, the thread was along those lines.

 

[scorps]

the boiling point of gas is -164 degrees why would it need insulation?

that must mean freezing point,i thought it was -40 though,only because someone told me that years ago

 

[Simon F]

the boiling point of gas is -164 degrees why would it need insulation?

that must mean freezing point,i thought it was -40 though,only because someone told me that years ago

it's a bit mind bending but,
boiling point is when a liquid turns into a gas.
freezing point is when a liquid becomes solid.
[DLMURL="http://www.elmhurst.edu/~chm/vchembook/501hcboilingpts.html"]Hydrocarbon boiling points[/DLMURL]
since natural gas is 90 percent methane, the boiling point is -164
propane is -40
butane only about 0

 

[Mike Jackson]

They do sometimes need electrical insulation if too near a leccy meter or fuseboard etc.