RE: Exposed CPVC pipe and residential upright sprinklers

This will be an interesting discussion. Could it be that since fire would be expected from below, uprights are not permitted? Or is it simply an oversight since there are so few residential upright sprinklers available? Or is it that the piping would generally be expected to be installed high

RE: Residential sprinklers

Richard is correct, our friends at Viking have this product and they should be consulted about its use in wood trusses. This may be a case where 8.3.1.3 (2016 ed.) can be used with approval of the AHJ. (The same would be true for pendent sprinklers.) Cary Webber CFPS Director, Technical

RE: [EXTERNAL] Conveyors

Has anyone looked at FM Global's guidelines for conveyors? Mike From: Sprinklerforum on behalf of Cary Webber via Sprinklerforum Sent: Tuesday, August 17, 2021 1:26 PM To: sprinklerforum@lists.firesprinkler.org Cc: Cary Webber ; Tyson Sutherland Subject: RE:

RE: [EXTERNAL] Conveyors

Look at NFPA 13 "Next Addition" for 2022 for the latest (albeit not yet published or adopted) requirements. Conveyors will have their own section in 2022 but good fire protection would dictate at least a look. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co.,

RE: Standpipe Testing

Fill completely with water; then connect a high-pressure nitrogen cylinder and quickly jack the system to 200 psi. Have seen this method used before to test large warehouse systems where it is very time consuming to pressurize the system(s). This information is provided as a courtesy only.

RE: Reliable Model C sprinkler

See attached; this is from 1970. The prior version went back to 1964 but was essentially the same. While we did not identify K-factors, we did identify 5/16", 3/8", 7/16", or 1/2" orifice for 1/2" NPT threads and 17/32" orifice for 3/4" NPT threads. Note that the sprinkler length of the

RE: Head or Not?

%7C0%7C0%7C637529058404414297%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000sdata=iZO2h9rCAAsSkbuKT3SO3sz32z5JE5QWtXnGSBNHr3o%3Dreserved=0 -Original Message----- From: Sprinklerforum On Behalf Of Cary Webber via Sprinklerforum Sent: Thursday, Ap

RE: Head or Not?

In the absence of language about what that obstruction is, and what might be below it, it seems clear the intent is to allow omission of protection below. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC  29657 Tel:

RE: New coil actuators - New standard

Potter Electric has done a nice job providing two options that should work with all the most common solenoids. Reliable will be adding this option to our electric release systems in the very near future! Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470

Re: Group III Aircraft Hangar

Annex A.4.3.5 suggests that aircraft hangars not governed by NFPA 409 would be EH1. Cary Webber Reliable Automatic Sprinkler Company Technical Services Department > On Feb 19, 2021, at 4:20 PM, Travis Mack via Sprinklerforum > wrote: > > CAUTION: This email originated from outside of the

RE: Slopes / Storage / UFC 3-600-01 change 5

The 2:12 rule is in chapter 12 [2016], but it is clear that the 30% increase does not apply to chapter 13. That being said however, I don't see where that waives you from the 30% area increase required in chapter 11, presuming you will be using an OH or EH area density design. Cary Webber

RE: NFPA 13R & NFPA 14

One would have to try very hard...but nothing is impossible! Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC  29657 Tel: 864-843-5161 -Original Message- From: Sprinklerforum On Behalf Of Jose Anibal Castillo

RE: Fluorine-Free Foams (FFF)

The team at Solberg Foam/Perimeter Solutions are a good resource for this: www.solbergfoam.com Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC  29657 Tel: 864-843-5161 -Original Message- From: Sprinklerforum

RE: listed pressure relief valve

Matt--We (Reliable) have 175, 185, 210, 260, and 310 psi versions listed. https://www.reliablesprinkler.com/files/bulletins/257.pdf?x32667 Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC  29657 Tel: 864-843-5161

RE: Horizontal Combustible Concealed Space

age- From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Cary Webber via Sprinklerforum Sent: Thursday, January 28, 2021 7:34 AM To: sprinklerforum@lists.firesprinkler.org Cc: Cary Webber Subject: RE: Horizontal Combustible Concealed Space CCS style sprinklers are gen

RE: Horizontal Combustible Concealed Space

CCS style sprinklers are generally listed to a maximum 2:12 pitch so IMO this is the best indicator of the difference between an attic space and a combustible ceiling space requiring special sprinklers; and yes, by requiring special sprinklers in the horizontal CCS 9.3.2 by default prohibits

RE: [EXTERNAL] Re: potential freezing in ESFR system

The statement "the manufacturer would probably use that as an "excuse" (my quotation marks) to not be held liable" is interesting and troubling at the same time. I presume the comment was intended to address a future issue with a sprinkler or sprinklers that cannot be directly tied to an

RE: [EXTERNAL] 23.4.4.2.5: What is the purpose and how does it apply?

I've heard it explained that the intent was to drive up the size of the main feeding the smaller area in case it was ever expanded in size, but in my personal opinion the standard should NOT be in the business of addressing the future. If the area gets added onto we can deal with it then by

RE: On/Off Switch in the Electric supply to a Dry Pipe System Air Compressor

At least two of the major compressor manufacturers reference UL 1450 as the applicable standard for fire sprinkler use. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC  29657 Tel: 864-843-5161 -Original

RE: Floor Mounted Vertical Obstructions

Wall wetting diagrams and spray pattern diagrams are provided for reference only and are not intended to supersede any requirements of the standards. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC 29657 Tel: 864-843-5161

RE: Standpipe Hose Valve at First Floor

Good advice; and often fire departments look for hose valves on intermediate landings. In that case one would presume you start between the ground floor and the second floor...so it becomes a moot point. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470

RE: Uprights in non combustible concealed space

On the downside, if all areas above the ceilings are not protected, it may give a false sense of security. On the upside, more sprinklers are better, and even if not required they can act as detectors in the space. Bottom line is that the AHJ has ultimate decision making authority. Cary

RE: Small Hose

Bod--See section 12.8.4. Cary Webber CFPS Director, Technical Services Reliable Automatic Sprinkler Co., Inc. 1470 Smith Grove Road, Liberty, SC 29657 Tel: 864-843-5161 [https://www.reliablesprinkler.com/sites/default/files/image001.png] From: