Nozzle Pipe Schedule & Flange Type

[rmech11]

Would like to clarify something.

I have encountered in a vendor GA a nozzle with 2" Sch No. - ASME 150# FNRF. Is FNRF a special type of flange? What does FN mean? Or is this a typo error and really pertains to WN. And does Sch No. - means STD?

Thanks for any inputs.

 

[JStephen]

Time to ask the vendor, I think. The Sch No. should have a number, and doesn't mean anything without it. Not familiar with FNRF, and Google doesn't pull up much of anything on it.

 

[jtseng123]

Forged neck ??

 

[nickelkid]

I would think FN may be a Weld Neck, then it would be appropriate to specify schedule.