What about thermal transfer to temperature sensitive sprinkler heads? Not a very good idea, without sophisticated sensors and controls. John O'Connor
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Grise Sent: Thursday, June 13, 2013 8:53 AM To: [email protected] Subject: RE: Freeze prevention I don't know of any products ________________________________________ From: [email protected] [[email protected]] On Behalf Of Nicky Marshall [[email protected]] Sent: Thursday, June 13, 2013 5:02 AM To: [email protected] Subject: Freeze prevention Is anybody aware of approved systems for freeze prevention of sprinkler pipework that involves circulating water within pipework? We are aware of dry systems, anti-freeze systems, heat tracing. A dry system requires additional water due to area increase - a tank would be needed. Anti freeze has not got very good press lately and approved products are expensive. Heat tracing does not seem like a very energy efficient system. There are circulating systems for domestic applications and internet searches show several patents for such systems for sprinklers, but I cannot find actual products. Thanks Nicky Marshall Protech Design New Zealand _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1432 / Virus Database: 3199/5907 - Release Date: 06/13/13 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
