I am working on a project where the water supply for the facility
will be fed from concrete tank(s). The absolute volume (completely
full) of the tank is 10098 gallons. A 6" suction line with elbow &
anti-vortex plate will need to be installed. According to NFPA 22,
the face of the suction elbow has to be a minimum of 6" above the
bottom of the tank. The take-out for the elbow is 8" and the top of
the pipe will be 4" (+/-) above that. I am trying to calculate the
effective or usable volume in the tank based on what my minimum
height above the floor can be relied on for suction. Would it be the
6" to the bottom of the elbow? 14" to the center line of the suction
pipe? 18" to the top of the suction pipe? The tank is 10 feet tall,
so this could have a significant impact on available water. (BTW, I
am already assuming that the tank will only be filled 9" to 12" from
the top; would that be reasonable?)
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
To Unsubscribe, send an email to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
