I have a project where 1" and 3/4" conduit is penetrating a 2 hour fire wall. the annular space around the conduit is sealed with FS-ONE MAX. On one side of the fire wall, the electrical system is closed. on the other side, the conduit is open at 12" and cabling and wire will go to a cable tray...
As a company we have installed CPVC (blazemaster) in houses, with a little bit of copper for aesthetics in exposed applications. However with an increase in the demand for freeze protection, general contractors have been on us about offering PEX piping. After quite a bit of research (not enough...
Our company just completed a NFPA 13 Fire Sprinkler System in a church. It was actually a church addition. One of the areas is an activities room for a youth group. One of the concerns brought up was having one of the kids hitting a sprinkler head with a ball and setting off one of the heads (at...
In NFPA 13D 2007 edition, under 8.2.5.2.1 it states as follows: Pendent sprinklers shall be located at least 3 feet away from obstructions such as ceiling fans and light fixtures unless the requirements of 8.2.5.4 are met. 8.2.5.4 gives you the table to refer to at 8.2.5.4.2(position of...
One of the engineers in our office just loaded up AutoCAD 2009 version, he had been using AutoCAD 2001 version. I don't know if anyone is familiar with 09' version yet but he doesn't like the view or style they changed it to; my question is, is there a setting that will change it back to the...
Our company is providing fire protection to a fly fishing lodge via fire sprinkler system. Its light hazard. CPVC. Wet. Because of the layout and some goofy interior designs we were hoping to find a horizontal side wall head that shoots perpendicular to a sloped (pitched) ceiling. The pitch is...
Hi all!
I got a question for ya! I am designing a nfpa 13d fire sprinkler system in a 10,000 sq. ft. vacation home in our area (central washington). Needdless to say the guys got loads of money. I noticed during my survey he has 300 sq. ft safe/room. The walls and ceilings are 10" thick...
i'm desinging fire sprinkler systems for houses per nfpa 13d. we are running into problemes w/ acsessing vaulted ceilinig areas w/ pendent heads because of beams that are not drillable. my installer decided to use horizontal sidewalls instead of pendants. well when he gave me a redline drwg of...
this is from chris conley on the previous thread "Depending on the number of heads I would highly recommend a glycol system. It can be added to just the area(s) of concern.We frequently specify them near large overhead doors.Nothing wrong with dry pipe, but dry pipes tend to corrode over time."...
There is a racket ball court that our company is going to sprinkler and i'm here to ask you oh so knowledgeable people what head choice you used in sprinklering such a facility. The room is 20' x 40' and the plan thus far is to use 2 extended coverage concealer style heads (heads centered in...
I need to know how to set my f1 key to restore my osnaps in autocad 08'. certain commands turn my osnaps off and i'd like to set a key i can punch so it goes back to the osnaps i want instead of going in to the osnaps menu and doing it. Any help on this matter is much appreciated. thanx!
tony
I'm looking for someone who uses autocad 2008 with a sister program called hydracad used for designing overhead fire sprinkler systems. my problem is that my rapid line features have changed suddenly. the arrow that shows where you can break a line or go to a sprinkler head is now so small i...
I'm looking for someone who uses autocad 2008 with a sister program called hydracad used for designing overhead fire sprinkler systems. my problem is that my rapid line features have changed suddenly. the arrow that shows where you can break a line or go to a sprinkler head is now so small i...
How does a manifold in the riser work. I know this is basic knowledge to most of you out there but i am new to the designing of fire sprinkler systems and am looking for a simple and clear explanation on the purpose of a manifold and how it works. thanx
I design overhead sprinkler systems and use hydracad 2008 and i am having problems with the autoline/autopipe command. The arrow that helps you pick a line/pipe to break is too small and to change the direction of the line is very touchy you have to be very exact. It used to be much easier the...
I use hydracad 2008 and i am having problems with the autoline command. The arrow that helps you pick a line to break is too small and to change the direction of the line is very touchy you have to be very exact. Don't know if anybody has any clue as to what i am talking about but i didn't know...
I am new in the water industry i just started work for an overhead fire sprinkler company in the design department. For the majority its coming fairly easy, but some of the "simpler" terms are confusing to me i still have not found a good explanation for k-factor and residual pressure. Any help...
