United Brass has one that Pete just sent the link to me on. This is for repair, it is supplying two sprinklers on a front porch and has been using Propylene Glycol. Do you have a link/source to the solutions that DIDNT go BOOM in the recently released testing?
Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <mailto:bobby.gill...@keyfireprotection.com> bobby.gill...@keyfireprotection.com _____ From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church Sent: Monday, October 11, 2010 3:20 PM To: sprinklerforum@firesprinkler.org Subject: RE: Check valve for antifreeze system I've never heard of anyone selling these pre-drilled. You're doing exactly what the red book says to do. There are risks associated with using AF solutions in a nursing home, as I'm sure you're aware- the listing on a check in an AF loop isn't one I'd lose any sleep over. But I'd be darn sure you can use the AF solutions that DIDN'T go BOOM in the recently released testing. That way you aren't installing a time bomb that would give the plaintiffs the keys to your shop, and with the recent brouhaha on AF, could make you negligent. If it is a low pressure system, that would help you have a foot on the ground upon which to further protect yourself, I believe higher pressure is smaller droplets is more surface area is more chance for boom. -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Bobby Gillett Sent: Monday, October 11, 2010 4:05 PM To: sprinklerforum@firesprinkler.org Subject: RE: Check valve for antifreeze system Correct, no BFP on this one. It is a state inspected nursing home, so if I can buy one I will. That way if it is listed with the hole in it I can supply the cut sheet and they cant come back and say we altered it and the listing went away. Thanks all. Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <mailto:bobby.gill...@keyfireprotection.com> bobby.gill...@keyfireprotection.com _____ From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church Sent: Monday, October 11, 2010 3:09 PM To: sprinklerforum@firesprinkler.org Subject: RE: Check valve for antifreeze system I like the Dunkin Donut Holes......seriously, just drill a hole in the clapper, nothing more complex tan that. Assuming you don't have a BFP stopping the expansion in the system??? Otherwise you'd need an expansion tank, not a hole. glc -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Bobby Gillett Sent: Monday, October 11, 2010 3:38 PM To: sprinklerforum@firesprinkler.org Subject: Check valve for antifreeze system The check valve in an antifreeze loop is to have a 1/32 hole in the clapper per NFPA 13-2007 7.6.3. We need an 1¼ for replacement, is there somewhere that these are available or do you normally drill a hole in the clapper? If you drill a hole is there a preferred style/brand for this? Thank you, Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. 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