RE: Fire Pump on vibration spring type isolators

slamming self closing doors in a vinyl tiled concrete corridor 24/7. If anyone does a test or mock up of this revolutionary concept please video it so we can all enjoy. Dave Phelan ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http

Re: Rack Storage of Cars?

that explains why the stackers in this metro area all seem to be outside in open parking lots Dave Phelan ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum

RE: Issue with water supply company

of responsibility but more times than not someone gets going on a tangent where the tree limbs are not designed to support their weight. Good luck. Dave Phelan ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http

Sprinkler Success with Good FD Comments

http://www.northjersey.com/news/110210_Sprinklers_keep_fire_at_Hackensack_pl ant_in_check.html Excerpt below from the FD spokesperson Lt. Stephen Lindner of the Hackensack Fire Department said a passerby reported smoke coming out of the Kraissl Co. building at 299 Williams Ave. at 12:48 a.m. He

13-R Attic Losses or 13 Attic Saves

not to burden the forum list. Thank you. Dave Phelan nomore...@yahoo.com ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email

Combination Riser Controls and Check Valve

Looking for some assistance with the following scenario: Combination sprinkler / standpipe riser typical to multi-family buildings with individual floor control valves / WF switches. When does either NFPA 13 and / or NFPA 14 kick in the swing check valve at the riser connection to prevent

RE: Combination Riser Controls and Check Valve

My prior post should have been a little less ambiguous since we have already broached the topic this month. I see the check valve in the 2007 and 2010 editions of NFPA 13 but am a little perplexed by a number of older 1996-ish combination systems that have the check valves installed in them

Re: Residential Sprinklers for Dry Pipe Systems

I see a few heads listed for dry service in residential systems .. Interesting but is there a specific DPV that must be used with a residential system? A listed head is great but the end result is still water delivery in 15 seconds and that seems pretty tough to achieve without carefully

Re: Residential Sprinklers for Dry Pipe Systems

When you look at the press release they mention at the very bottom to follow special bulletins TFP 460 and TFP 461 for listing and design information etc .. Those particular bulletins don't seem to be available off the TFP website but I'm also not an authorized dealer / installer. Can

RE: Question regarding NFPA 13 vs. NFPA 13R

I'm with Dave A. on the issue of 13/13R 'hybrid' designs where a single building contains both systems where did we see that in the model building codes which dictate the 'when and where'? If using the IBC then 903.3.1.2 references an NFPA 13R system '... in buildings of Group R...'. Note

RE: seismic design category

Seismic Design Category and Site Class are indeed two different things - although inter-connected in concept: We have the Secondary Onsite Water Supply requirement from the BOCA days and now IBC codes which relies on the determination of Seismic Design Category (SDC) as the threshold to apply

Ductile for FDC Underground

Greetings - Working on a problem currently - here's the synopsis of it: Building built in 1998-1999 with sprinklers throughout. FDC is located in the front at the street approximately 25 feet from actual building. FD responds to a fire and supports the FDC (125 PSI) when they notice red

RE: Ductile for FDC Underground

The metal label on the valve says 'FireLock S/717 Ductile Iron 250 PSI'. Nothing altered or unusual about the valve's metal tag, the length of pipe is what got me scratching my head. From: Dave Phelan [mailto:nomore...@yahoo.com] Sent: Thursday, June 17, 2010 4:38 PM To: 'sprinklerforum

RE: Ductile for FDC Underground

I will be able to say for sure on the pipe when they cut it out over the weekend and I go back for a sample next week. Any thoughts on a better mousetrap for the new piping to avoid quick deterioration ? Dave, From: Dave Phelan [mailto:nomore...@yahoo.com] Sent: Thursday, June 17, 2010 4

RE: Ductile for FDC Underground

I can assure you the only thing is was wrapped in was clay and rubble rocks kicking around the jobsite. Not a stitch of restraining or thrust blocking at the FDC elbow either. I appreciate the guidance and will be sure to pass along the final result when they cut and remove the pipe from the

RE: 13D Question

. Dave Phelan ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email

RE: CPVC and Nail plates

I do vaguely recall this a few months ago on the forum and forget what we came up with, so here's just my thoughts before breakfast ... The standards do not specifically call out a requirement for nail plate or protection of piping. However, depending on which codes are in effect at the location

Re: Phenol epoxy resin dust

engineering all around, not just sprinkler design. Good luck. Dave Phelan An AHJ in NJ ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send

Riser Check Valve Info ?

appears to be replacement with recognized listed and labeled components but my curiosity is nagging me. Thanks much. Dave Phelan An AHJ in NJ ___ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman

Re: Grinnell F300 DPV Pressure Info Needed

Actually the 1940's date was my mistake as I typed with the brain ahead of the fingers ... what I really meant to say was that they are approx. 40 years old - circa 1973 to 1975 with the original construction of the building. Thanks for the steering towards the patent file - its 5.5 to 1 and

13 D and Elevators

Greetings - Just following along on the thread about positioning heads and 13D systems so I figured I'd throw another two cents in the mix here . Section 8.6.5 13D -2007 added a section that sprinklers are not required in elevator machine rooms and concealed spaces including elevator

Grinnell F300 DPV Pressure Info Needed

Greetings to all - I am working on a project with several 1940 era Grinnell F-300 DPV's - 4 inch. One of the many issues with these systems is the incorrect air settings from the supplied air system and lack of proper air maintenance devices. Does anyone have a table or air pressure / trip

[Sprinklerforum] 13D or P2904 Multipurpose / Network Installs Needed

and photographs for an upcoming educational program. If anyone on the list has such resources I'd appreciate some contact information or push in the right direction. You can contact me directly off list if you prefer at the email below. Much thanks in advance. Dave Phelan An AHJ in NJ

Re: [Sprinklerforum] Auto Parts Store

Just another angle on this question given the occupancy .. Depending on the quantity and classification of the various hazardous materials - mostly combustible and flammable liquids I would think - the prevailing building code may have requirements outside of a straight NFPA 13 Occupancy

Re: Definition of Bathroom vs 8 inch lintel

In the event that bathroom situation crossed my desk I'd have to go with the lack of the 8 inch lintel as meaning the 'space with a toilet' is actually part and parcel to the adjoining space for purposes of number of design heads. We are calling it a room when it is really about the

Definition of Bathroom vs 8 inch lintel

Sorry - meant to add one other item Not knowing the occupancy of the building but sounds like residential - the bathroom exception applies within the dwelling unit. Does this lintel-less space open into a public corridor or public area? Wouldn't we be suppressing this public bathroom then

Variation on Sprinkler Save

http://www.northjersey.com/news/51184127.html See link above where a melted solder joint sprayed water into a developing fire and 'saved' the day. I would expect the NAHB to begin strong lobbying efforts shortly to ban copper and solder in home construction as it apparently leads to water

Re: Ceiling Fans

Are we talking about ceiling fans in residential settings (homes apts) or those really big helicopter type fans in storage warehouses known as HVLS (high volume - low speed) ? Dave P. An AHJ in NJ on temporary reassignment to the back deck hammock

Re: Sorority/Fraternity Houses

I agree with all the points raised - particularly with the need for solid hanger support. I'm not sure which editions you are currently using in your area but I do point out the following: NFPA 13R-2002 Edition Section 3.3.6 indicates that dormitories are within the scope of 13R. NFPA

Window Sprinkler for Fire Rated Assemblies

http://www.icc-es.org/reports/pdf_files/ICC-ES/ESR-2397.pdf I know we occasionally get on the topic of design and such for window sprinklers for alternate design for interior fire rated assemblies so this might be worth tucking away for future use. The ICC Evaluation Service has released

Re: Exterior Decks/Balconies 13R

I believe the focus on this requirement is that these exterior spaces (decks, balconies, whatever you call thems) represent an appreciable risk to the building due to human activity. There have been some losses of mid-rise 13R properties that were spectacular to watch as an exterior fire on the

Big A$^ Fans ... among others..

http://www.nfpa.org/assets/files//PDF/Research/HVLS.pdf George posed an item on his wish list regarding high volume low speed fans used in warehouse applications, sometimes known by the trade name 'Big Ass Fans' or also by the Arbon / Rite Hite Company. This is something I posed about a year

Play Areas

Just some fire based experience with the indoor play areas and outdoor plastic play equipment sans nationally recognized testing labs or fancy measuring equipment . - Salvaged a supply of the plastic balls and components from a fast food indoor play area while the restuarant was closed

Supervisory Alarm - Low Air

Thanks for the information - I will be adjusting my field acceptance testing procedures now to include this requirement. I see the problem as being a gap between the sprinkler installer and alarm tech / electrician. Even if the sprinkler tech puts in the proper switch with double contacts to be

Supervisory Alarm - Low Air

Something new to me popped up today as we are now using the 2002 editions of 13 72 here. On a dry pipe sprinkler the National Fire Alarm Code - NFPA 72 states that the air supervisory sensor shall signal on loss of 10 PSI but also on 10 PSI greater than the system set pressure. Check out 5.13

Stainless Steel AG Piping

Greetings again all, I am in the process of reviewing plans for the secondary water source to a high-rise residential building where they are taking water from the pool on the parking garage roof and piping to the grade level fire pump room. All indications are that there is enough head pressure

Piping in Parking Garage - Protection Thereof

Greetings all, I was inspecting an 'open' on three sides parking garage today and came across 8 Sch 10 black pipe being run across the ceiling; one line for FDC on far side of building and another which will be the city supply line to the main building fire pump. The city water feed will end up

Impairment - AHJ View

Good day all As Roland guessed - I'm going to weigh in with how this AHJ (me) views impairments. In my early days as the local official (marshal) I took the position that impairments needed a fire watch - either using FD personnel in some cases or privately hired security personnel to

Re: Impairments - An AHJ Perspective

Roland, Im aware of what NFPA 25 has on impairments and the pre-planned impairment 4 hrs in 24 hrs trigger point including an approved fire watch AND temporary water supply. Trained personnel are described in the handbook and appendix to those sections and its all valid. An impairment

Residential Head Mounting Heights

. Is this situation outside of the listing standard (UL1626)? How does the list feel about unusually high ceilings in 13R systems and has anyone dealt with this in their past experiences ? Thank you. Dave Phelan An AHJ in New Jersey ___ Sprinklerforum

RE: Residential Head Mounting Heights

Dear All, Let me clarify that in this situation the room has a flat ceiling above. I understand the intent of wall wetting and agree that regardless of height there still will be the net effect of wall wetting. It just seems to me that the prevention of flashover is better served from 8-10 feet