Tim,
I would not expect NFPA to have any real statistics on this.
ECS and others have performed testing and offer white papers.
OSU is currently testing, but I am not impressed with what they are proposing
or the data they appear to be collecting.
I have seen and investigated failures of
Was the desire for Sch. 40 known prior to bidding? If yes, then you should
price accordingly and move on.
If the Sch. 40 desired was known and you assumed it was incorrect and instead
that you would be able to install Sch. 10, that's on you.
If the Sch. 40 was not known prior to bidding,
I would like to chime in on this thought because this fact is often overlooked
when the great debate of pipe wall thickness occurs. I can only provide
anecdotal evidence of pipe longevity so I’ll be of no help in your quest, but
I’ll offer this:
4” Sch 10 is 118 pounds per 21 ft. stick.
4” Sch
There is no question that Sch 10 is easier to handle than Sch 40. It is going
cost more to purchase and install Sch 40 mains. If the owner is OK with that,
he can require it. Once Code issues are met, the owner can ask for anything he
wants beyond that.
Codes are a minimum.
Todd,
I will check with NFPA.
Given the Choice would you rather manhandle 4” & 6” schedule 10 or sched 40 all
day long?
As a Designer no I don’t really care what the schedule is as long as I know
this when I start the design.
Happy Thanksgiving.
Regards,
G. Tim Stone
G. Tim
Tim,
You would probably have to reach out to NFPA and/or trade associations for
statistics. Suffice it to say that if it was significant, Sch 10 would not be
approved. The only failures I am aware of have other contributing circumstances
such as corrosive environments, non
Steve and others,
Thank you for your responses.
Does anyone have or heard of Failure Rates related to Schedule 10 steel pipe. I
am not talking about MIC or Corrosion failures. I am dealing with a large
customer with many properties all with sprinkler systems, new and existing who
is
