Dear Go for Factory Galvanised pipes (inside & outside galvanised) , which will be suitable. However,as said it is tunnel you can use HDPE(High density polyethelyne) or Ductile iron pipe with internal cement lined & external epxoy coated with pressure rating as per your system pressure.
Regards DR On Wed, Sep 19, 2012 at 8:01 PM, Greg McGahan <[email protected]> wrote: > We have an UG tunnel with an existing 8" bulk main that is showing signs of > significant corrosion - currently black pipe - unpainted. > > We recommended replacing the pipe with galv sch 10 - a competitor has > recommended using blk shc 40 and painting it as being a better choice for > corrosion protection. We disagree but would like some other input? > > The tunnel does have standing water on the floor most of the time so it is > always damp. > > Thanks, > Greg > > -- > Greg McGahan > Living Water Fire Protection, LLC <http://www.livingwaterfp.com> > 1160 McKenzie Road > Cantonment, FL 32533 > 850-937-1850 > fax 850-937-1852 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120919/e51f2e06/attachment.html > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > -- D Radhakrishnan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120920/a910b2bd/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
