FPST2243_06_Pipe Schedule Method

FPST2243_06_Pipe Schedule Method - Automatic Fire...

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1 Automatic Fire Suppression Systems FPST 2243 UNIT 06 Pipe Schedule Method
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2 Module Objectives Upon completing this module, students should understand Determine the pipe size according to pipe schedule method Reading materials NFPA 13 chapter 22
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9/28/11 33
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9/28/11 Example If an angle iron is to be used for a trapeze bar to support 6-inch Schedule 10 piping, what are the required dimensions of the angle iron if the span is six feet? Modulus: 0.71 Angle iron: 3 x 3 x 5/16 44
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Sprinkler System Design Requirements set forth in NFPA 13 Two design methods Pipe schedule method Hydraulic calculation method
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Pipe Schedule Method The oldest design method, Pipe is sized based on the number of sprinklers required, Primary advantage is ease of design and calculation, and Primary disadvantage is that it may require larger (more expensive) pipe.
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Required Flow Rate For Pipe Schedule Systems NFPA 13 does not set specific flow rates. Pipe schedule may be used in buildings over 5,000 ft2 if residual pressure at most remote part of the system is 50 psi.
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General requirements on water supply for pipe schedule method
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Pipe Schedule Method Determine pipe sizes by counting the number of sprinklers being fed by any given piece of pipe. If a piece of pipe only feeds one sprinkler,
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FPST2243_06_Pipe Schedule Method - Automatic Fire...

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