Recent content by AdamMurray

stookeyfpe Thank you for your response. As for storage commodity and rack type....I am not to concerned about this, am just looking for fire tests for buildings over 40 feet in height with rack storage and double interlocked preaction systems. I am aware of the NFPA requirements, however...

I am wondering if anyone is aware of fire testing for preaction systems protecting cold storage freezers with no in rack sprinkler protection. I am hoping to find information for building heights above 40 feet. There seems to be lots of testing for building heights of 40 feet or less, but I am...

I think the only way you could possibly eliminate the sprinklers is to model the building and prove they would be ineffective....even then the AHJ may require them.

Honestly, all the clean agents are a risk as far as I am concerned. Its becoming a real dog and pony show, with way to much finger pointing between competitors. The room seal is so important, and is so hard to maintain over a period of time (unless you keep a real close eye on future...

Steve This is exactly what the contractor is saying. As well, he is saying that this is what is causing pitting in the tanks. Is the contractor correct? And do you know of any technical articals which support this. Tks Adam

Has anyone heard of steel sprinkler system pressure tanks coroding on the interior due to electrical current? If so any technical articals which reference this. The tanks are two years old (epoxy coated interior I beleive). The water is hard and is treated with dearboen chemical. Tks

Currently have a client who requires a stored water supply. Typically would recommend vertical turbine fire pump and cistern. However, the architect would like to have the stored water supply installed adjacent to the basement (burried underground), and have the fire pump installed in the...

Just wondering if anyone is familiar with the "Assassin" spark detection panels......and if so, where could one find product data on the equipment. Thanks Adam

As david has said, I am talking about welded outlets on the mains. Thanks for the comments guys.

Is it ok to weld schedule 10 galvanized piping on a dry pipe sprinkler system per NFPA 13? I would think not, but could not find any reference.

I am looking for a little clarification on the definitions of "Closed Array", "Standard Array", and "Open Array" as defined in NFPA 13 for roll paper storage. As well, when they are talking about columns, I am assuming they are talking about paper, is this correct. Any help or pointers would...

Anyone know where I can download a copy of this standard. Working on an existing system that was installed around this time. Thanks

Just wondering if anyone could point me in the right direction. I am looking for NFPA or ULC references for sizing and placement of heat collectors for sprinkler heads and heat detectors. The heads and /or deflectors would be located approx. 20 feet from roof deck. Are local application...

Recently I have posted a question noted as "Fire Pumps and Overpressure" and received great responses. I have one more question regarding the initial "bump" at pump start up. History We have building with several double interlock preaction systems all served by one common...

The bible is the NFPA automatic sprinkler systems handbook. A little pricy but well worth it.