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victaulic.com 5.0 PERFORMANCE - FRICTION LOSS DATA (CONTINUED) Series AH2 and AH2-CC Braided Hoses Equivalent Length Design Guide Equivalent length values at various numbers of 90 degree bends at 2751 mm center line bend radius Nominal Outlet 1 2 3 4 5 6 7 8 9 10 11 12 Length Size Bend Bends Bends Bends Bends Bends Bends Bends Bends Bends Bends Bends inches inches feet feet feet feet feet feet feet feet feet feet feet feet mm DN meters meters meters meters meters meters meters meters meters meters meters meters 31 '/2 11.0 13.0 15.0 16.0 790 DN15 3.4 4.0 4.6 4.9 31 3/4 12.0 14.0 19.0 20.0 790 DN20 3.7 4.3 5.8 1 6.1 36 '/2 14.0 16.0 18.0 19.0 21.0 915 DN15 4.3 4.9 5.5 5.8 6.4 36 3/4 17.0 19.0 21.0 22.0 23.0 915 DN20 5.2 5.8 6.4 6.7 7.0 48 '/2 18.0 19.0 21.0 23.0 25.0 27.0 30.0 32.0 1220 DN15 5.5 5.8 6.4 7.0 7.6 8.2 9.1 9.8 48 3/4 21.0 24.0 26.0 28.0 31.0 33.0 35.0 37.0 1220 DN20 6.4 7.3 1 7.9 8.5 9.4 10.1 10.7 11.3 60 '/2 21.0 24.0 27.0 30.0 32.0 35.0 37.0 40.0 43.0 46.0 1525 DN15 6.4 7.3 8.2 9.1 9.8 10.7 11.3 12.2 13.1 14.0 60 3/4 23.0 25.0 27.0 29.0 32.0 34.0 37.0 40.0 43.0 46.0 1525 DN20 7.0 7.6 8.2 8.8 9.8 10.4 11.3 12.2 13.1 14.0 72 1/2 27.0 29.0 31.0 34.0 37.0 40.0 43.0 46.0 48.0 50.0 52.0 55.0 1830 DN15 8.2 8.8 9.4 10.4 11.3 12.2 13.1 14.0 14.6 15.2 15.8 16.8 72 3/4 26.0 28.0 30.0 33.0 37.0 40.0 44.0 48.0 51.0 54.0 57.0 60.0 1830 DN20 1 7.9 1 8.5 1 9.1 1 10.1 1 11.3 12.2 13.4 14.6 15.5 16.5 17.4 18.3 NOTES • Values for use with 5.757140mm straight reducers. • The values in this table are provided by the manufacturer for reference only.For friction loss data in accordance with the UL Certification,please refer to pages 19 and 20 of this publication. How to use this Design Guide: • For some systems,it may be advantageous for the designer to calculate the system hydraulics using shorter equivalent lengths associated with fewer than the maximum allowable number of bends.In this case,the designer may select a design number of bends for the job and use the associated equivalent length from the design guide to determine the system hydraulics. • It is possible that the actual installed condition of some of the flexible drops may have more bends than the designer selected.When this happens,the design guide may be used to find equivalent lengths based on the actual installed number of bends for particular sprinkler installations.The system hydraulics can be recalculated using actual equivalent lengths to verify the performance of the system. 10.85 5839 Rev AL Updated 02/2022 ©2022 Victaulic Company.All rights reserved. victaulic.com 21 ✓ctaulic°