Re: Sprinkler in elevator pit.

All elevators have pits. Most have shafts. Fire heat fuses the sprinkler when it banks down from the elevator car's floor. Otherwise the heat goes up the shaft. On Fri, Feb 25, 2022 at 12:32 PM Ed Kramer via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > Speculation only, but

Re: MORE ACTIVITY WEIGHING IN

I was taught in the eighties, architects liked the XL pipe for lighter weight in skyscrappers. On Wed, Feb 17, 2021 at 10:32 PM Anthony via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > If you need a table showing the weight of the water filled pipe then we > have > an Excel s

Re: Air Venting (2021)

care in engineering and design is required to eliminate these air pockets. Gang drains have been used for years to drain low points on dry system lines. The same is needed for air evacuation, just at the top of the system. A small line joining the peaks of lines may be needed. As for the antifreeze

Re: Standpipe signage

just completed project in Birmingham AL. Firemarshal Deborah requires signs, they're all over the city. On Wed, Nov 25, 2020 at 4:11 PM Tom Duross via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > I do a fair amount of this for both commissioning and 5-year. I only post > pr

Re: Antifreeze testers

I use MISCO On Tue, Nov 24, 2020 at 5:04 PM Mark Phillips via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > Hello > What brands of refractometer is everyone using? > Looking for replacement and want to get some options > Thanks ina advance > > Sent from my mobile device > Plea

Re: Diesel Fuel Tank - Leak Protection

steel fuel lines are good. Use super dope, no tape. NFPA used to require a check valve in the fuel return, I still put it in the line. Old habits. On Fri, Nov 20, 2020 at 5:07 PM BRUCE VERHEI via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > I’m mostly impressed you have an ow

Re: Insulation on Valve Risers

Is the riser pipe cold where it comes through the wall? Is pipe sweating a problem, causing corrosion? On Tue, Apr 14, 2020 at 3:13 PM Reed A. Roisum, SET via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > Check out FMDS 8-29 Refrigerated Storage…particularly the section on > ‘

Re: Suction Tank Question

These questions have reminded me of a situation I've always questioned. I've seen many tanks with metered test loops returned to the tank about ten feet from the bottom. All of them off center. Wont this cause the tank water to swirl when testing the pump through the flow meter? Does this risk tank

Re: Grooved Flange Adapters

there's not enough clearance for two on the same 90, and the adapter / coupling combo must use a 009 (slip in) coupling. On Tue, Jul 10, 2018 at 10:29 AM, Brad Casterline wrote: > Do 6” Grooved Flange Adapters work on both ends of 6” Firelok 90s? > > > > Thanks, > > > > Brad > >

Re: [EXTERNAL] Ground Storage tank

When I do inspections in the "country", and there's a storage tank with altitude valve, control valves are often partially closed to throttle the flow. When the 4" valve opens to fill the tank, it drops the pressure so much there's no water for toilets and sinks. Building owners, or occupants, "fix

Re: FDC & Pump

If I have an existing FDC at the hot box and add a pump later, then the FDC must be moved to the pumphouse? On Fri, Feb 2, 2018 at 6:29 AM, Dewayne Martinez < dmarti...@total-mechanical.com> wrote: > Tom, > > Are you saying that if I put a control valve for the standpipe feed at the > riser man

Re: Electric monitoring of control valves

You must mean in parallel. On Jul 4, 2017 7:43 PM, "Steve Leyton" wrote: Lets assume this isn't a plot to overthrow the local government. If the installer did this per code and good practices, then wiring tamper switches in series isn't uncommon. If they did it right, it's perfectly okay and yo

Re: Polybutylene

A few years ago I was called to do an inspection at a condo and it was installed with polybutylene pipe and omega heads. I couldn't get out of there fast enough. The gauge showed pressure, no inspection, no bill, no trace I was there. I deny it. On Tue, Mar 28, 2017 at 11:27 AM, John Irwin < jir..

Re: Wet Pipe Above Breezeway

is the yellow fiberglass between pipe and attic? below plastic sheeting is gypsum board, right?plastic sheeting (tenting) and insulation only retain heat. A heat source is needed, such as below gypsum board. Perhaps converting to steel pipe that's heat traced, to a dry pendant On Mon, Dec 19, 2016

Re: SPRINKLERS INSIDE OVENS

preaction systems are what I see for this On Wed, Oct 12, 2016 at 5:28 PM, Cesar Lira wrote: > I have a worry, > > I need to install sprinklers inside an Oven that work at 300°F. I know > that I need to use a sprinklers 360°F or high. > > But this system is tie to a same roof grid. And my conce

Re: Nitrogen Systems

why nitrogen instead of the MIC chemical/insecticide? Nitrogen for dry systems yes, chemicals for wet. Shock the MIC with a 20 PPM mixture, and then maintain at 10 PPM with injection pump at the riser or pump room. Problem is the damage already done to the systems' piping, and the amount of blockag

Re: Angled Wall Spacing

using extended coverage allows further distance from walls, which brings heads closer than 21-2 1/2. On Fri, Jun 10, 2016 at 2:58 PM, Parsley Consulting < parsleyconsult...@cox.net> wrote: > I'll chime in as well. > > Example 3 is closer to being correct, as the sprinklers at B and C aren't > mor

Re: Angled Wall Spacing

maximum head to head, light and ordinary, is 15'. Maximum to wall is half that, 7'6", except small room (light hazard only, 9'). yes, you need to add heads. Maybe extended coverage heads? On Fri, Jun 10, 2016 at 2:20 PM, James Litvak wrote: > The problem with A.8.6.3.2.3 is that it only shows th

Re: Pre action pull station

s so smoking related deaths per year and subsidize the > tobacco companies. How much do we subsidize the airlines to pay for TSA so > w can feel safe in the safest mode of transportation, miles per person, we > have? > > On Tue, May 10, 2016 at 1:37 AM, Kenneth Berman > wrote: > &

Re: Pre action pull station

consider a remote manual pull station to give enough volume of trim piping to allow for pressure drop , even if you only loose a few drops through the check valve, because of pressure loss in the supply piping. Loss of underground pressure resulted in a pressure drop, back through the priming line,

Unskillful joiningt

Re SD z cz ACvbCC zz FDRThe's frets are CV. Esk nb MBCD doocs ck jd havrjlc the d ___ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org

Re: Piping of radiator discharge line

Wherever you pipe it, be careful of backpressure. Heat exchangers can't go over a few pounds. Check the maximum pressure on ID label.The pressure reducing valve is in it's supply for a reason. On Fri, Mar 4, 2016 at 4:27 PM, Ed Vining wrote: > How about piping to the drain through a sight glass?

Re: Piping Through an Elevator Shaft

Run through the machine room high, and have the superintendant hang the ceiling below your pipe. The elevator guys don't need much height in their room. Maybe even build the pipe into a soffit. On Fri, Feb 26, 2016 at 8:28 PM, Charles Thurston wrote: > Hello Jerry, > > Nope same as the shaft. >

Re: Tennessee Fire Codes

Nashville fire marshal presently using 2007 On Fri, Aug 7, 2015 at 8:32 AM, Matthew J Willis wrote: > They could be, unless they have a line item adoption. > Also, most jurisdictions will allow variances on the more current codes. > Correspondence will be you friend I think... > > R/ > Matt > >

Re: Column Protection

e spray is directed horizontally, rather than > vertically? > > *Ken Wagoner, SET > *Parsley Consulting*** > *350 West 9th Avenue, Suite 206 > *Escondido, California 92025 > *Phone 760-745-6181* > Visit our website <http://www.parsleyconsulting.com/> *** > On 07/06/2015 2:

Re: Column Protection

o us via: https://www.hightail.com/u/MFPDesign > > On 7/6/2015 2:09 PM, Kenneth Berman wrote: > >> What cools a fifty foot column above fifteen feet? Codes don't say install >> horizontal, vertical, up, down. In Tennessee gravity pulls the water down. >> I'm cool

Re: Column Protection

ilbert, AZ 85298 > 480-505-9271 > fax: 866-430-6107 > email:tm...@mfpdesign.com > > http://www.mfpdesign.com > https://www.facebook.com/pages/MFP-Design-LLC/92218417692 > Send large files to us via: https://www.hightail.com/u/MFPDesign > > On 7/6/2015 1:57 PM, Kenneth Berman wrote: >

Re: Column Protection

You're all missing an important point, the horizontal sidewall is pointed upwards. A vertical sidewall, upwards, is incorrect. The horizontal sidewall cools the column from fifteen feet upwards, and the water returned by gravity cools the column below fifteen feet. On Mon, Jul 6, 2015 at 2:50 PM,

Re: Mech Tee Installation

attaching the coupon shows compliance with retrieval requirement. 2007 13- 6.5.5.2(2) Might as well hang it there, it's just trash. On Wed, Feb 18, 2015 at 5:26 PM, John Denhardt wrote: > No reference in NFPA 13 that I'm aware. Usually see the requirement in a > specification. You might want t

Re: Replace or repair a leaking fire pump casing

What brand? Split case? Vertical or horizontal? Leaking at shaft packing glands? Probably field repair, one day, packing materials available at bearing shop or pump rep. On Wed, Dec 31, 2014 at 8:55 AM, Richard Lindner wrote: > I have a question regarding a leaking water issue on an electric, in

Re: Diesel fuel pump tank vent

The 4" emergency vent is installed at tank level. The smaller 2" vent is extended to ten feet above the fill cap, which is one foot above the tank, for a total of eleven feet minimally. It's much easier to support. On Fri, Oct 24, 2014 at 5:36 PM, Hinson, Ryan wrote: > NFPA 20 (2013) Figure A.11

Re: Identification of preaction system types

If there's no pneumatic supervision of piping, and there's been no mention of a pilot line, it sounds like a single interlock. On Mon, Jun 30, 2014 at 10:32 AM, wrote: > OK, there we are. > > One other thing I just discovered, there is no pneumatic supervision of > the piping. The only air co

Re: Support of tall risers

though not specifically for risers, I try to follow 2007 9.2.3.2.1 and put a hanger/support on each piece. My risers are in 21' pieces. On Fri, Jun 13, 2014 at 5:50 PM, Brad Casterline wrote: > Yes, thanks Ron! > Some more off-Forum feedback hit on what would be a good balance for a > spec writ

Re: elevator pit sprinkler off dry system

turn off tampered control valve, that controls the pit head, before trip testing. On Fri, Jun 6, 2014 at 3:14 PM, wrote: > Auto ball drip? > > -Original Message- > From: Sprinklerforum [mailto: > sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Todd - Work > Sent: Friday, Ju

Re: "Street" elbows

close nipples are as close as street ells. 1/2 x 1/2 x 1 tees and you can leave the uprights, or for tight spaces where you can eliminate the upright, use 1 x 1 x 1/2 with a 1" plug. On Fri, Jan 17, 2014 at 3:54 PM, Charles Thurston wrote: > Hello All, > > I do wish I could find some 1/2" Male x

Re: Paint both heads

Highest expected ambient temperature must be considered. You said the links had been swept up. What's the color on the frames of the heads? What is in the head box? On Sat, Jan 4, 2014 at 8:49 AM, Charles Thurston wrote: > Hello Scott, > > When I was doing Dry Chem in heated spray booths. I wou

Re: air maintenance device for a pressure vessel

vice, air compressor, that maintains air pressure in the system. There is no regulator on it. On Wed, Oct 16, 2013 at 5:09 PM, Ed Vining wrote: > Fraid not. See > http://www.vikinggroupinc.com/usrelated/general/airmaintdevice.pdf > > > On Wed, Oct 16, 2013 at 1:21 PM, Kenneth Berman

Re: air maintenance device for a pressure vessel

the air maintenance device is the air compressor, not the regulator. On Tue, Oct 15, 2013 at 5:07 PM, Charles Thurston wrote: > Hello Joel, > > The only one I have seen was on a boat. They had two 1/2" pressure > regulators in parallel with valves to isolate one or the other. They were > marked

Re: 10 Pipe Diameters

Pump #1 suction needs 100" of straight pipe from the 16" 90. Any way to move the 16 x 10 x 10 tee to where the 16" 90 is now, and lengthen the pump #2 suction? The end goal is eliminating turbulance and achieving 150% flow. If the tee's bullheaded supply to pump #2 doesn't cause enough turbulance t

Re: water storage tank: 300,000 gallon size: failure: FL not NY

I am curious about the tank failure in Florida. I want to know if they were using a meter loop to test the fire pump. I've seen some meter loops discharge directly into the tank instead of being piped to the top of the pool as the fill lines are. If piping the fill line to the top, shouldn't the me

Re: Radiation Vaults

wall penetrations require double 45 offset within the wall. I suggest going below grade, with the ductwork, and back up to your preactiom valve. An auxilliary drain is needed. On Thu, Mar 22, 2012 at 9:10 AM, Roland Huggins wrote: > Although the safety factor is a good idea, depending on the type

Re: Boo boos

1. The helpful superintendant who liquid nailed concealed head plates back up after they'd been knocked down and broken. 2. A water motor gong with a broken head installed in it's drain. -- next part -- An HTML attachment was scrubbed... URL:

Re: Trash Chute Question

A head isn't required at the top of the chute, only at the top floor opening, and every two below. You said there's heads at all floors, right? I think the clean-out head was incorrectly connected to the fire system, and the open head was replaced with a new head at original construction thirty yea

Re: Trash Chute Question

Sounds like a "cleanout head", that should've been connected to domestic water supply, was incorrectly connected to the fire system during original construction. The head should be an open head, controlled by a valve at the top of the shaft. It shouldn't set off the pump or fire alarm. On Wed, Jan