When you have to come back across your stairs, we found it so much a PIA we simply run a sep spkr riser up in the corner on the floor level, and leave the standpipe and hose valves back on the intermediates.
We own a core drill, its no big deal to run the extra vertical when compared to the mess of 90s and how long it takes to get back over from the intermediate landings on each floor. Chris, I tried to visualize what you described, but its been too long a day. Cliff, we do what you do if the AHJ is ok w/FHVs on the floor, not intermediates. glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Duross Sent: Thursday, March 13, 2008 7:07 PM To: [email protected] Subject: RE: Location of Standpipe and Floor Controls Valves You have to pipe up or you'd be piping through the stairs coming down. Actually the FDV is 2' below the floor and FCV 3' above, no problem. I've always like it since they made the change but it makes the lowest level a pita. Tom GRS I agree but if for instance you have 12' between floors that puts your intermediate landing at about 6' AFF. If you have a 9' clg height your FCV is now only 3' above the landing and your FHV is 4' above the landing. That puts your FCV at an elevation that anyone can tamper with it. Unless I'm missing something, this always creates a big mess in my opinion. Cliff Usually the FCV is up high enough not to become an obstruction. You want it out of reach for the average person to avoid tampering. Craig L. Prahl, CET Craig, I think the question John is asking is, if you do that, how do you pipe back out from that point to the floor without your piping becoming an obstruction in the stairway? I understand that putting fire hose valves at the intermediate landing can save you one valve per stairwell and that it provides a valve that is accessible for the firefighter from either level but it sure makes piping your floor control assemblies a pain in the butt from my prospective. I would always prefer to have my FHV and FCA on each floor level. Cliff Typically, if you're using a combination standpipe-riser you've got the hose valves at alternate levels in the mid-point landings between floors, the floor control valves for the sprinkler systems are coming off the same riser at each level where you've got a sprinkler system on that floor. Craig L. Prahl, CET On jobs where hose valves are required on the alternate landing, where are you guys placing the floor control valves in relation to the standpipe? For example, do you leave the standpipe on the alternate landing and run up to the main landing and place the floor controls there? Do you put the controls on the alternate landing and run the sprinkler up to the main landing and into the ceiling? Do you use separate risers for standpipes and sprinklers? ............... Seems to me there's a bunch of different placement options but just wanted to see what others thought was best. John Kaminski _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
