When did this pipe, which I seem to remember was UL Listed, lose the listing?

[SprinklerDesigner2]

The project appears to have been installed per NFPA 13R but it was done at least 20 years ago and it wouldn't surprise me if it was 30 years.

Guys in the field did not get the date of the sprinkler head but it appears to be a QR pendent. Not sure if it is 13R or not.

But the pipe is what I am interested in knowing about... what are we looking at and when was it used?

 

[MatthewJWillis]

Based on the melted joint fusion, and color..,

Polybutylene.
Was under a big recall/class action lawsuit.

Wen out early to mid 90's.

R/
Matt

 

[cdafd]

Ok been around for awhile but have not seen that before

Any more pictures showing the stamps on the pipe

 

[SprinklerDesigner2]

I must be losing it because a search reveals we had this conversation four years ago and I can not recall it!

[URL unfurl="true"]https://www.eng-tips.com/viewthread.cfm?qid=401839[/url]

 

[SprinklerDesigner2]

Couldn't help myself, had to go find out the whats and wheres.

From the 2003 NFPA Handbook:

It appears to me that PB pipe was approved for both 13D and 13R systems and even some 13 light hazard systems.

Now for the big question of the day.... if you got a break or cut pipe HOW DO YOU FIX IT?

 

[cdafd]

I remember the thread

Seemed to be in the Atlanta area, and suggested a company walk away from repairs.

 

[TravisMack]

That almost always involves a system re-pipe as I understand it. There are no fittings that can be used with the pipe to transition to a current material.

Travis Mack, SET, CWBSP, RME-G, CFPS
MFP Design, LLC

http://www.mfpdesign.com