Seeping heads causing external corrosion
Seeping heads causing external corrosion
(OP)
Sprinkler seepage, corrosion issues
We are seeing a rash of leaking, corroded sprinkler heads, all of the late 80s to current vintage. Mostly Viking, Reliable, and Tyco. looking for anyone seeing the same, or possible causes. We have done numerous lab tests with no smoking gun to date. We did find some out of the box reliable G heads with both torn or delaminating teflon on the seats. thread184-343162: Central sprinklers slipping seats seeping suspiciously
We are seeing a rash of leaking, corroded sprinkler heads, all of the late 80s to current vintage. Mostly Viking, Reliable, and Tyco. looking for anyone seeing the same, or possible causes. We have done numerous lab tests with no smoking gun to date. We did find some out of the box reliable G heads with both torn or delaminating teflon on the seats. thread184-343162: Central sprinklers slipping seats seeping suspiciously





RE: Seeping heads causing external corrosion
I think you may be seeing solder creep..
R/
Matt
RE: Seeping heads causing external corrosion
And looks like a mineral build up?
RE: Seeping heads causing external corrosion
RE: Seeping heads causing external corrosion
My initial thought if everything has changed except one, and you still have the same problems, then that one thing should be more thoroughly investigated.
Travis Mack
MFP Design, LLC
www.mfpdesign.com
"Follow" us at https://www.facebook.com/pages/MFP-Design-LLC/9221...
RE: Seeping heads causing external corrosion
Yep that is the bluish / mineral deposit I am talking about.
I think there is a name for it.
RE: Seeping heads causing external corrosion
One side note is that while we have seen this across many brands and models, we have not had any Reliable F1 heads present this condition, even when Tyco and Viking heads in the same facility do. We have also not seen any Victaulic heads show corrosion, but we have very few Vic heads in this area.
RE: Seeping heads causing external corrosion
Travis Mack
MFP Design, LLC
www.mfpdesign.com
"Follow" us at https://www.facebook.com/pages/MFP-Design-LLC/9221...
RE: Seeping heads causing external corrosion
RE: Seeping heads causing external corrosion
You can send a question to NFSA expert of the day:::
http://www.nfsa.org/?page=EOD
RE: Seeping heads causing external corrosion
RE: Seeping heads causing external corrosion
RE: Seeping heads causing external corrosion
Sorry do not have the info, people like to purge files around here.
It was installed in roughly 1996
I found the problem in 2006
I do have a note that they are "recalled heads".
In 16 years, only system I have found around here with the problem.
I am thinking your problem is the sprinkler heads themselves.
RE: Seeping heads causing external corrosion
I think I found the super secret files
Appears it is a Central ESLO head 155 degree 14.5 K factor