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FM Friction Loss Data(cont.) Table E <br /> Nominal Reducer Maximum Maximum Equivalent Length <br /> Length of Flexible Sprinkler Number of of 1"(33.7mm) <br /> Hose K-Factor <br /> 90 Bends at 7 Sch.40 Pipe <br /> in(mm) NPT Threads Type gpm/psi (178mm) (C=120),ft(m) <br /> (Ipm/bar'"2) Bend Radius <br /> 1/2 Straight 5.6(80) 4 23.7(7.2) <br /> 1/2 90°Elbow 5.6(80) 4 33.1 (10) <br /> 8.0(115) 4 29.1 (8.8) <br /> 60 3/4 Straight 11.2(160) 4 28(8.5) <br /> (1525) 14.0(200) 4 27(8.2) <br /> 8.0(115) 4 32.2(9.8) <br /> 3/4 90°Elbow 11.2(160) 4 31.1 (9.5) <br /> 14.0(200) 4 30(9.1) <br /> 1/2 Straight 5.6(80) 4 28.4(8.6) <br /> 1/2 90°Elbow 5.6(80) 4 40.4(12.3) <br /> 8.0(115) 4 35.5(10.8) <br /> 72 3/4 Straight 11.2(160) 4 34.3(10.4) <br /> (1830) 14.0(200) 4 33.2(10.1) <br /> 8.0(115) 4 39.5(12) <br /> 3/4 90°Elbow 11.2(160) 4 38.3(11.6) <br /> 14.0(200) 4 37.2(11.3) <br /> FM Notes: <br /> 1. RASCOFLEX®Sprinkler Connections have been tested and approved by FM Approvals for use in wet, preaction,and dry sprinkler <br /> systems per FM data sheets 2-0,2-5, and 2-8 per FM1637. <br /> 2. Maximum sprinkler K-Factor:5.6(80 metric)for 1/2-inch reducer and 14.0(200 metric)for 3/4-inch reducer. <br /> 3. Differences in equivalent lengths are due to varying test methods, per FM 1637 standards. <br /> 4. Above data of friction loss for use with 6.1"straight reducers. <br /> Bulletin 213 Rellabi Page 7 of 8 <br /> April 2022 www.reliablesprinkler.com <br />