Position of the vertical sprinkler frame?
Position of the vertical sprinkler frame?
(OP)
I have a question regarding the position of the sprinkler frame. Should the two vertical frames on a sprinkler be positioned along the branchline or acoss the branchline? As I see it, the frame should be positioned across the branchline because the branchline works as an obstruction for the spray pattern. If the vertical frame is positioned with the frame along the lines, this works also as an obstruction. Of course it also works as an obstruction across the line, but not as big as if it would be placed along the line, because of the "double obstruction".
What are your thoughts on the subject, and are there actually written any criteria for this some where in NFPA 13?
What are your thoughts on the subject, and are there actually written any criteria for this some where in NFPA 13?





RE: Position of the vertical sprinkler frame?
8.3.1.3* Upright sprinklers shall be installed with the frame arms parallel to the branch line, unless specifically listed for other orientation.
RE: Position of the vertical sprinkler frame?
glad it only applys to uprights.
RE: Position of the vertical sprinkler frame?
Travis Mack
MFP Design, LLC
www.mfpdesign.com