Small-Bore Buried Gas Piping

Here in the metro Milwaukee area, WE Energies will make up the HDPE line with the proper fittings crimped on for you for underground use.

It costs a right penny, but you know it's done right then!!

Allen

It is fairly common use in Australia , widely used in natural gas reticulation, it is well accepted.

Obviously it is up to as you say local and national regulations.

Good morning thinman56. HDPE meeting ASTM 3406 or 3408 has been in use many years in the sw US. I recommend 1" CTS SDR 11 for 60 psig or less, altho you don't mention the pressure or your location. There're several fitting manufacturers to choose from, one being R.W.Lyall Co. in Ca.

Thanks, all, for the responses. Local jurisdiction also says HDPE is fine for low-pressure (<100 psig) natural gas and propane, so we'll go with that.

Cheers

Check the colour codes, though. In the UK, gas is yellow and potable water is blue. Otherwise they are similar materials.

In my jurisdiction, plastic is now the standard...and required. And preferable. Flexible for easier installation, doesn't corrode. However, cannot be continued inside building where black pipe still the way. This is the latest thinking and standard.