On the few (very few) school projects with dust collectors we have had to design (not install mind you), we have provided details that sprinkler heads would be installed in a "Tee" turned up with a cover plate to fasten the sprinkler head and keep it positioned (include a union for removal). Spacing of the heads were not to exceed 12' and only installed in ductwork over 8". An access door shall be provided at each sprinkler head location in the main duct to access the head. Heads were intermediate temperature with corrosion resistant coating. I believe we have also provided a dry type head connected to the exterior dust collector hopper but my memory is not going that far today with reliability. That also would be a call by the owner/AHJ since it's located outside the building and the level of protection they want, in my opinion.
Hope this helps Richard On Wed, Jan 6, 2010 at 5:53 PM, Dennis Browning <[email protected]>wrote: > I have a High School with a Sawdust collection system that the Building > Department wants Sprinklered inside all ducts 10" and larger. Has anyone > done this before and what about head/ abrasion problem? Seems strange to me. > What code would you design to for spacing, etc? > Any input would help? > > Dennis Browning > Browning Fire Protection > Office # (541) 245-0466 > Fax # (541) 245-0498 > Email: [email protected] > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%[email protected]> > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.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)
