I tried to get a response in another forum but to no avail (thread177-137470). I'd like to find out what the main differences are between piping (specifically as it relates to wet pipe fire sprinkler systems) manufactured in accordance with ASTM 135 vs ASTM A53. ASTM A135 is commonly used for...
No, I'm not too concerned about price at the moment, just the differences between the two specifications. I guess when I say "adventageous" I am referring to the performance as it would relate to pipe use within fire sprinkler systems. This could involve pressure ratings, threadability, wall...
Does anyone know the main diferences between pipe manufactured to ASTM A135 versus A53? Specifically, would it be adventageous to specify that piping for a fire sprinkler system be A53 rather than A135 when A135 is generally acceptable for fire sprinkler systems?
I know that, in Michigan, Fire Extinguishers within comercial areas (offices and such) are spaced for 75' of foot travel (150' between them).
What are the requirements for buildings with residential occupancies such as Hotels and Apartments? Are the Extings, spaced for 75' of foot travel...
mfpd:
Both. Initially the standpipes but later the systems that will come off the combined standpipes.
(I did not get the notification email for this response, if site manegment is listning...)
I have a standpipe system in a high-rise building and am using pressure restricting valves (Cla-val #90-21). Any thoughts on the 'best' way to do the hydraulic calculations with the pressure restricting valves? Could I simply calc back top the valve itself and plug in 1000gpm (flow required...
I like the idea to use the 2 1/2" valve then increase up to the main size required. Except that the installation would look horrendous. A smaller valve serving a larger main. It would probably raise questions during the approval phase too. But, hey, at this point I'm willing to look at...
In a high rise building, I am including one standpipe zone and one fire pump. two of the three class I standpipes would be combined with the floor control stations.
On many floors, I should be able to get away with 2 1/2" floor control stations. Therefore, I would be able to use a 2 1/2"...
Well, as it turns out, FM is not the insurer for the owner any longer. So, all the FM stuff is out the window. Thanks for everyones input on this issue.
Well, I just finished up with one calc. I did end up making the remote area greater than 1500 sq ft. So, I actually end up with less flowing heads because I don't need to flow all those heads in the small rooms etc. The numbers are now coming out the way I would expect them to.
2 1/2"...
gouveia:
I can verify that FM does not approve Residential heads - or at least none of the ones I've looked at. Actually, the heads I am using are all NFPA 13 heads. I'm using an Ext-Cov sidewall for the most part with SSP concealers on the soffits and ceilings. All of which are FM approved...
I am working on the design of Fire Sprinkler system in a high rise building that will have both hotel floors and apartment floors.
Due to the fact it is a high rise building, I would believe that the design is in accordance with NFPA 13 rather than 13D or 13R.
My question is, for the Apartment...
