AMD and air regulator are not synonymous. Some AMDs have regulators but no regulator would be a listed AMD assembly.
On Thu, Mar 24, 2011 at 12:34 PM, Roland Huggins <[email protected]> wrote: > you can also do an online search of the UL directory for listed products. > > Roland > > On Mar 24, 2011, at 11:16 AM, Sean Lockyer wrote: > >> I have an odd situation that I have never seen before; I recently did an >> inspection in which we had a faulty air maintenance device (Tyco AMD-1) >> and >> the air maintenance device itself is 1/2" but the piping back to the AMD >> to >> the dry pipe valve was 1/4" (it was reduced down immediately from the >> connection). Per the listing isn't the piping required to be a minimum of >> 1/2" ? In addition, is there an code reference requiring the AMD line to >> be >> a minimum size ? >> >> Lastly, there was another AMD for a model that I have heard of, it is a >> Parker Filtration Model RP FR-1004CSS. I searched high and low in the land >> of Google but could not find anything; the closest I found was an Air Gap >> that was for a different model number. I wonder if this is a type of AMD >> but >> is not actually listed for fire sprinkler use and that the problems in the >> dry system is not the valves or the other AMD but is in fact this >> off-brand >> type. >> >> What says the community ? >> >> -- >> Sean Lockyer >> Project Designer >> Delta Fire Sprinklers >> (407) 328-3000, ext 139 >> _______________________________________________ >> 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) >> > > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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)
