B. Always size to the actual system pipe volume. This will be different from the gpm required in the calc, and I have found with both SprinkCAD and HydraCAD (don't know about MEPCAD or any others since I haven't worked with em) that the system volume given needs to be checked. They both provide an answer, but not necessarily always an accurate one.
Bob Knight, CET III 208-318-3057 www.firebyknight.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, April 04, 2012 6:39 AM To: [email protected] Subject: Today's Challenge question - Sizing Air compressors Ok, so for today here it is: When sizing a system air compressor for a dry or preaction system you size it based on: (a) the volume that is shown on the hydraulic calculation provides, (b) a takeoff of the piping and determine volume of the entire system from the end head back to the system valve. Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1913 / Virus Database: 2114/4914 - Release Date: 04/04/12 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
