Normally I assume fire department plans to operate with soft suction at
positive connection pressure.
I wouldn’t here. I know everyone hates meetings. I think one is necessary. It
would be possible to have at least three different conceptions of project
basics.
If FD plans on using hard
If protecting a corridor with residential sprinklers, I have always
calculated 4. If protecting with standard spray, 5.
Jamie
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For the venting requirement, NFPA 22 section 4.15 will provide some
guidance.
Ed K
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of John Irwin
Sent: Friday, November 02, 2018 7:16 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Always
Matt,
The tanks are 16.5' tall and the outlet is 6" from the base. This is going to
result in positive pressure at the pump inlet. What I wonder is if I can get
784 gallons from those (4) 3" outlets.
Also, I agree that tanks need venting, but is there direction on how much
venting?
What
It might be a good idea to perform a hydraulic analysis to see how much water
can be drawn through those 3" outlets. The pump that the FD is using likely has
minimum supply pressure (1/2psi or so). If you need (x) psi at the pump suction
flange, and you have (y) psi at the tank discharge (from
Ok so here's something new for me ... the situation ...
Client has a client who is using a temporary, tent structure for storage. And
right now they are using mobile fracing water containers to supply what I
assume would be classified as a dry hydrant. The fire marshal wants something a
little
