×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How to calculate the water delivery time in dry standpipe system

How to calculate the water delivery time in dry standpipe system

How to calculate the water delivery time in dry standpipe system

(OP)
I need to provide a calculation showing the water delivery time in a dry standpipe system for a marina dock. Does anyone know what the calculation is? I cannot find anything on this topic anywhere.

Thanks

RE: How to calculate the water delivery time in dry standpipe system

Is it an automatic or manual standpipe? Second question: why? I can't recall any instance where NFPA 14 requires a water delivery time.

RE: How to calculate the water delivery time in dry standpipe system

(OP)
Manual. The town is requiring it for some reason.

RE: How to calculate the water delivery time in dry standpipe system

NFPA 14-2010 defines a manual dry standpipe system as "A standpipe system with no permanently attached water supply that relies exclusively on the fire department connection to supply the system demand." No matter what mathematical method you elect, the answer will always be "it depends what fire truck is pumping into the other end".

Were it an automatic dry standpipe system in excess of 750 gal, NFPA 14 5.2.1.2.2 would require that water be delivered to the most remote hose connection within 3 minutes.

Perhaps the AHJ is confusing manual and automatic standpipes?

R M Arsenault Engineering Inc.
www.rmae.ca

RE: How to calculate the water delivery time in dry standpipe system

If the system is built, test it by flowing the inspector test connection placed at the most remote point of the sprinkler system. Insurance companies have requirements so contact them, perhaps their specialist can help.

RE: How to calculate the water delivery time in dry standpipe system

(OP)
Its not built its in design. Thanks for the help I will check out the insurance thing

RE: How to calculate the water delivery time in dry standpipe system

Viking has a generic fluid delivery calculation program. It is not as accurate as the Tyco FDT program, but should suffice for something like this. Just go to http://www.vikingcorp.com/ and search for it.

Travis Mack
MFP Design, LLC
www.mfpdesign.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources