Brian,
Could be fishy but I guess it depends on what your demand is for the head that your feeding with 1" pipe. I think you use AutoSprink. If you want to contact me off-forum I'd be glad to help you look at this with you. Cliff Whitfield, SET President Fire Design, Inc. 184 Comfort Place Burnsville, NC 28714 Ph: 828-284-4772 <mailto:[email protected]> [email protected] <http://www.fire-design.com/> www.fire-design.com From: Sprinklerforum [mailto:[email protected]] On Behalf Of Brian Harris Sent: Tuesday, January 30, 2018 8:25 AM To: [email protected] Subject: Is this remotely possible ?? I have a calculation for a dry system that is currently -2.945 psi (-19.8%) over the curve. My most demanding head is one of (2) heads on a 1" arm-over, if I change the section of pipe (7'-6" long) that feeds this head to 1-1/4" my calc changes to +24.168 psi (136.8%) under the curve. Seems fishy to me, thoughts? Brian Harris, CET BVS Systems Inc. Design Manager <http://bvssystemsinc.com/> bvssystemsinc.com Phone: 704.896.9989 Fax: 704.896.1935 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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