B, "The air supply shall have a capacity capable of restoring normal air pressure in the system within 30 minutes", I'd imagine you already know, but the volume shown in the calcs isn't the amount of water (or air) in the pipe, it's the amount flowed through the system in one minute with the remote area flowing at the calculated density. Mike Morey, SET, CFPS Sprinkler Designer BMW Constructors, Inc. O: 317.651.0596 | C: 317.586.8111 www.bmwc.com
________________________________ From: [email protected] on behalf of [email protected] Sent: Wed 4/4/2012 8:39 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 -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 4992 bytes Desc: not available URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120404/25c2a735/attachment.bin> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
