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3.3.15 Hydraulically Designed System
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A calculated sprinkler system in which pipe sizes are selected on a pressure loss basis to provide a prescribed water density, in gallons per minute per square foot (mm/min), or a prescribed minimum discharge pressure or flow per sprinkler, distributed with a reasonable degree of uniformity over a specified area.
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3.3.15 Definitions, Hydraulically Designed System
A calculated sprinkler system in which pipe sizes are selected on a pressure loss basis to provide a prescribed water density, in gallons per minute ...
Standard for the Installation of Sprinkler Systems 2013 of New York State > 3 Definitions > 3.3 General Definitions > 3.3.15 Hydraulically Designed System
3.3.15 Definitions, Hydraulically Designed System
A calculated sprinkler system in which pipe sizes are selected on a pressure loss basis to provide a prescribed water density, in gallons per minute ...
Standard for the Installation of Sprinkler Systems 2016 of New York State > 3 Definitions > 3.3 General Definitions > 3.3.15 Hydraulically Designed System
8.15.20.5 Installation Requirements, Revamping of Hydraulic Design Systems
When hydraulically designed systems are revamped, any existing bushing shall be removed and a nipple not exceeding 4 in. (100 mm) in length shall ...
Standard for the Installation of Sprinkler Systems 2016 of New York State > 8 Installation Requirements > 8.15 Special Situations > 8.15.20 Piping to Sprinklers Below Ceilings > 8.15.20.5 Revamping of Hydraulic Design Systems
8.15.20.5 Installation Requirements, Revamping of Hydraulic Design Systems
When hydraulically designed systems are revamped, any existing bushing shall be removed and a nipple not exceeding 4 in. (100 mm) in length shall ...
Standard for the Installation of Sprinkler Systems 2013 of New York State > 8 Installation Requirements > 8.15 Special Situations > 8.15.20 Piping to Sprinklers Below Ceilings > 8.15.20.5 Revamping of Hydraulic Design Systems
8.15.20.5.3 Installation Requirements,
When it is necessary to pipe two new ceiling sprinklers from an existing outlet in an overhead system, any bushings shall be removed and the use ...
Standard for the Installation of Sprinkler Systems 2013 of New York State > 8 Installation Requirements > 8.15 Special Situations > 8.15.20 Piping to Sprinklers Below Ceilings > 8.15.20.5 Revamping of Hydraulic Design Systems > 8.15.20.5.3