Only that the owner is worried about pipe failures using schedule 10. I don’t
know where is information is coming from. In my 34 years in this industry I
have never heard or seen Schedule 10 pipe failures on water filled sprinkler
systems unless they freeze. The only other scenario is the use of Schedule 10
on dry pipe systems which we all are learning is for the short term unless you
are charging that pipe with Nitrogen.
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638
[email protected] <mailto:[email protected]>
From: Fpdcdesign <[email protected]>
Sent: Tuesday, November 22, 2022 1:01 PM
To: Discussion list on issues relating to automatic fire sprinklers
<[email protected]>
Subject: [Sprinklerforum] Re: Steel pipe failure rates
Did the specifying engineer state why he/she wants only Sch 40?
On Nov 22, 2022 at 12:14 PM, <Skyler Bilbo <mailto:[email protected]> >
wrote:
I always use the Corrosion Resistance Ratio (CRR) argument. Basically, the
thickness of schedule 10 piping is greater than or equal to the thickness of
the first exposed thread of threaded schedule 40. Using this argument,
schedule 10 should theoretically last at least as long as threaded schedule 40.
You can't use this argument if they call for grooved schedule 40.
Thanks,
Skyler Bilbo
<https://ci3.googleusercontent.com/mail-sig/AIorK4y8Hq3kJpcrMKcZPAe4JT4xB7a2Rf10HH9h91m15sYft0q0IkyUaWivqrU3_iQPJ9vznaW8t_4>
1700 S. Raney Street
Effingham, IL 62401
217-819-6404 Direct
217-347-7315 Fax
[email protected] <mailto:[email protected]>
www.wenteplumbing.com <http://www.wenteplumbing.com>
On Tue, Nov 22, 2022 at 10:14 AM <[email protected]
<mailto:[email protected]> > wrote:
Are there any studies comparing the failure rates of Schedule 10 steel pipe
versus schedule 40 steel pipe used on wet water filled sprinkler systems?
I have a client who is not allowing the use of schedule 10 Main piping 2 ½” and
larger on their projects. All piping used has to be schedule 40.
Thank you in advance.
Regards,
G. Tim Stone
G. Tim Stone Consulting, LLC
NICET Level III Engineering Technician
Fire Protection Sprinkler Design
and Consulting Services
117 Old Stage Rd. - Essex Jct., VT. 05452
CELL: (802) 373-0638
[email protected] <mailto:[email protected]>
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