Originally Posted by coolpj
1- When I was referring to wrapping the burried galvanized pipes, I was talking in general and not specifically for gas applications.
2- So, in summary, for LPG outdoor underground applications, the choices are:
- black steel with factory applied anti-corrosive coating (the extra 3M wrapping, if costs
permit, is a plus).
- GasTight flex, sleeved with Schedule 40 PVC piping and long sweep fittings.
- Type "L" or "K" soft copper with flared joints
And the choices are the same for indoor application, I assume. Though copper seem to be the most popular trend in that respect.