Re: 13R covered entrance

2012-10-25 Thread Todd Williams
Curtis, this is a multi building apartment complex. Some of the buildings are 13 (handicap units) and some are 13R. The buildings protected per 13 are going to have the canopies sprinklered; that was never in question. It was the 13R buildings with the way the standard/code are written. I spoke

RE: DPV replacement

2012-10-25 Thread Dick Culver
Dwayne, You can take a standard companion flange to a good machine shop and they can turn it down to the exact size you need. Dick -Original Message- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf

RE: DPV replacement

2012-10-25 Thread Dewayne Martinez
Thanks for everyone's input, it is much appreciated as always. Dewayne -Original Message- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Dick Culver Sent: Thursday, October 25, 2012 8:42 AM To: sprinklerforum@firesprinkler.org

Diesel Tanks NFPA 20

2012-10-25 Thread Bobby Gillett
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Re: trip time per nfpa 25

2012-10-25 Thread Mike Cabral
I would check to make sure that the air supply to the DPV is working as it should. The time to trip should never be that long. Is the by-pass open? Sounds like the make-up air is supplying to much air. The make up air needs to be restricted. The supply line to the Inspectors Test can be larger

RE: Diesel Tanks NFPA 20

2012-10-25 Thread Bobby Gillett
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Re: Diesel Tanks NFPA 20

2012-10-25 Thread Johnson, Duane (NIH/OD/ORS) [C]
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RE: Diesel Tanks NFPA 20

2012-10-25 Thread RFletcher
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RE: trip time per nfpa 25

2012-10-25 Thread Gregg Key
Very good feedback. This system was installed in 2006 and is a Victaulic dpv. We have none of the original acceptance test paperwork but would make an assumption that it would have passed then. It appears to be a small system. Mike ,you are right about the by-pass line as it appears that there is

RE: Diesel Tanks NFPA 20

2012-10-25 Thread Bobby Gillett
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RE: Diesel Tanks NFPA 20

2012-10-25 Thread RFletcher
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Re: trip time per nfpa 25

2012-10-25 Thread Jacoda Fire Protection
Be sure to check the air water solenoid on these valves, we have had issues with these. They do not operate like a typical dry pipe. There was also a recal that applied to certain pin assemblies on the check! Regards, Jamey On 2012-10-25, at 12:15 PM, Gregg Key gr...@keyfps.com wrote: Very

Re: trip time per nfpa 25

2012-10-25 Thread Mike Cabral
Victaulic DPV have very low supervisory air pressures. They act more like a Pre-action valve the clapper is held in place by an actuator. Air pressure is critical to the operation. You must have an operating Air Maintenance Device. The high low differential is only somewhere around 5 to 7 psi

RE: trip time per nfpa 25

2012-10-25 Thread Richard Mote
Was it a Victaulic #756 or #768? Look closely at the differential piston if it is a #756 some time they stick. Richard L. Mote ET NICET Cert. No. 067611 Designer Rowe Sprinkler Systems, Inc. 7993 Route 522, Suite 1 P.O. Box 407 Middleburg, PA 17842 P 570.837.7647 F 570.837.6335 -Original

RE: Diesel Tanks NFPA 20

2012-10-25 Thread Craig.Prahl
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RE: trip time per nfpa 25

2012-10-25 Thread George Church
Fortunately for us, it's been when our inspector is there wondering why 80 PSI and zero air doesn't raise the clapper. And the time the DPV acted with smart logic- somehow it knew the attic low point wasn't drained, so when it broke, the DPV didn't trip and cause all that nasty water damage.

Re: trip time per nfpa 25

2012-10-25 Thread Mike Cabral
Good point there was a corrosion issue with the piston. I recall that Victaulic had a published procedure for repair and I think a material change later down the road. Check Vic's web site or call tech support. MC Sent from my iPhone On Oct 25, 2012, at 11:58 AM, Richard Mote

RE: Diesel Tanks NFPA 20

2012-10-25 Thread Bobby Gillett
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RE: Diesel Tanks NFPA 20

2012-10-25 Thread Craig.Prahl
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RE: Diesel Tanks NFPA 20

2012-10-25 Thread Bobby Gillett
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