Plumbers/Gas fitters, need your help

[EJL923]

Im running some short LP gas lines for a construction heater, but i haven't done much plumbing for gas. My question is on flared fittings, i believe they are called sae. I know on long runs and using soft copper, the flared end is soft enough for a seal against a male flared fitting. I bought a gas connector which has a male flared end, with fittings for female flared ends, which i guess allow you to assemble without twisting lines. These are not soft to my knowledge so my concern is how do they seal? Is it simply a taper to taper perfect fit, or do you use those tapered soft copper gaskets i see online? The gas connector did not come with any, so its a little confusing.

Thanks
Eric

 

[Buzz Saw]

Not a plumber or pipe fitter but the fittings you are referring to are probably AN fittings. These fittingd are used extensively in motor sports. There is no sealing material just a "perfect" fit.

The link below are made from Aluminum but I know they are also made with steel. I believe steel fittings are also use in hydraulic applications.


Aeroquip FCM2007 Blue Anodized Aluminum -08AN Flare to 3/8" NPT Pipe Fitting https://www.amazon.com/dp/B000CILYVO/ref=cm_sw_r_other_awd_nK5LwbMK7MVPR

 

[EJL923]

Thanks. Does anyone know then when a gasket like this would be used?
http://www.amazon.com/FASPARTS-Copp...52778546&sr=8-7&keywords=copper+flare+gaskets