Scot, Question #1: I've worked for various contractors who prefer different methods. Some want to minimize the # of outlets coming off the main and spend a bit more $ offsetting heads and/or branchlines. Others like the idea of having the sprinkler directly below the main and are willing to spend more $ for extra outlets and save a few $ on hangers and labor.
Question #2: A lot may depend on the skills of the crew installing the system. A 'residential' crew may be able to smoke a plastic job, but may not know much about installing steel. One of the challenges of being an independent designer is learning the material/labor preferences of the each customer. Ultimately, the customer is always right! (excluding code issues, of course) Ed Kramer Littleton, CO >I am not a fitter. >That qualifies some of the ignorance >with the first question. The second >question I think I know, but >I hope to get some ammo to go to take >to the boss, you know. > >My boss is telling me not to put >any weld-o-lets on a main line. Instead >he wants them all on the branch lines. >I have a 2-1/2 inch "main" running down >a corridor. He wants the main offset >and all sprinklers for the corridor to come >off of the branchlines into the rooms. >Not all of the corridor sprinklers line up >with the branch lines, so it is a bit more >piping; however it is not excessive. > >Just curious as to what anyone might >use for the logic in this. If there is >logic with not putting sprinklers off of >the main, it will educate me to know it. > >Second question... > >My boss says if a job has plastic pipe, >then the entire job should use plastic >pipe. I think that is ridiculous for the >relatively more-expensive sizes over 3 >inches where i hear steel comes in >under the plastic costs. Anyone have >opinions and facts regarding transitioning from >plastic to steel as a valid way to go, when >pipe diameters exceed 3 inches? > > > >scot deal >excelsior fire _______________________________________________ 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)
