At first blush this is not a good idea. You could develop a head pressure water column above the DPV which can slow or even prevent operation of the DPV. Newer DPV have a low differential. You still need expansion tank $$. How do you do a trip test AF then air then water. No No No! Sent on the Sprint® Now Network from my BlackBerry®
-----Original Message----- From: Vince Sabolik <[email protected]> Date: Thu, 20 May 2010 11:46:40 To: <[email protected]> Subject: RE: Ant-Freeze Systems So now I'm wondering why this is OK but the NFPA frowns on trapped water in a heated area in a dry system. At 11:42 AM 5/20/2010, you wrote: >So the idea would be that when the anti-freeze system activates, the >antifreeze solution would be blown out by the supervisory air, then >the dry valve would trip, then the water would fill the system and discharge? Vince Sabolik Christi Fire Protection, Inc. 11351 Pearl Road Strongsville, Ohio 44136 T 440 572-7730 F 440 572-7719 Email: <mailto:[email protected]>[email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
