Has this pipe seen brackish water in the past? Perhaps sending a camera into the pipe and see what is going on will answer you question. Also, the life expectancy of buried Sch 40 might be in question, brackish or not. Remember that for free standing FDC's, we use galvanized pipe with an exterior coating. No specific experience, just some thoughts. Sounds like it's around Orange Park.
At 05:58 PM 7/23/2009, you wrote: >Anyone have any historical data or experience with how long sch 40 steel >piping typically lasts outside when filled with brackish (somewhat salty) >water? > > > >I have an industrial project where the client wants to reuse some >decommissioned existing 16" sch 40 painted steel product piping as their new >fire water main. It would be nice to do this, because they need about one >mile of fire main 12" or larger and this line is already there, in place, >and currently unused. > > > >The water supply is the Saint Johns river (vertical turbine pump on a dock), >which is normally fresh water but it's brackish at this site - which is >about 6-7 miles from the ocean and gets a good amount of salinity with the >tides. > > > >Does anyone have a feel for how long steel pipe will last in this type of >application? It will be normally wet and filled entirely with water. It >will likely only be flowed annually with their yearly testing. > > > >Thanks in advance for the insights, > > > > > >Steve Kowkabany, P.E. > >Fire Protection Engineer > >Neptune Fire Protection Engineering LLC > >616 Davis Street > >Neptune Beach, FL 32266 > >904-652-4200 Phone > >904-212-0868 Fax > > > >_______________________________________________ >Sprinklerforum mailing list >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >For Technical Assistance, send an email to: [email protected] > >To Unsubscribe, send an email to:[email protected] >(Put the word unsubscribe in the subject field) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
