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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 43 Model Number Pipe Size Flow Rate - CFH m3h CSA MAX 100 2.83 200 5.66 300 8.50 400 11.33 500 14.16 600 16.99 750 21.24 1000 28.32 SR400 38 x 38 150 4.2 0.33 0.08 1.30 0.32 --- --- --- --- --- --- 12 x 12 170 4.8 0.27 0.07 1.10 0.27 --- --- --- --- --- --- SR500 12 x 12 360 10.2 0.08 0.02 0.30 0.08 0.68 0.17 1.20 0.30 --- --- --- --- 34 x 34 400 11.2 0.05 0.01 0.21 0.05 0.47 0.12 0.83 0.20 1.30 0.32 --- --- --- SR600 34 x 34 600 16.8 --- 0.09 0.02 0.20 0.05 0.36 0.09 0.56 0.14 0.81 0.20 1.25 0.31 --- 1 x 1 600 16.8 --- 0.07 0.02 0.16 0.04 0.29 0.07 0.45 0.11 0.66 0.16 1.00 0.25 1.75 0.44 NOTE Capacities expressed in CFH m3 h 0.64 sp gr gas CSA maximum capacities vary with spring range and pipe size. Please contact Maxitrol directly for CSA maximums. See pages 58-59 for Regulator Sizing Requirements and Examples. Model Available Springs SR400 Maximum 3 to 5 0.75 to 1.25 S. Steel 2.5 to 3.5 0.62 to 0.87 White 4 to 6 1 to 1.5 S. Steel 3 to 5 0.75 to 1.25 White --- Minimum 0.3 to 1.2 0.07 to 0.3 Plated 0.3 to 1.2 0.07 to 0.3 Plated 1 to 2.8 0.25 to 0.7 Blue 1 to 2.8 0.25 to 0.7 Blue 2.5 to 4 0.62 to 1 Black SR400-2 Maximum 7.5 to 12 1.87 to 3 - Blue SR500 Maximum 3 to 5 0.75 to 1.25 S. Steel 1.5 to 3.5 0.37 to 0.87 White 3.5 to 6 0.87 to 1.5 S. Steel 2 to 4.5 0.5 to 1.12 White --- Minimum 0.3 to 1.2 0.07 to 0.3 Plated 0.3 to 1.2 0.07 to 0.3 Plated 1 to 2.8 0.25 to 0.07 Plated 1 to 2.8 0.25 to 0.7 Blue --- SR500-2 Maximum 7.5 to 12 1.87 to 3 - Black SR600 Maximum 3 to 5 0.75 to 1.25 S. Steel 2.5 to 4 0.62 to 1 Plated 4 to 6 1 to 1.5 S. Steel 3 to 5.5 0.75 to 1.37 White --- Minimum 0.5 to 1.2 0.12 to 0.3 Plated 0.3 to 1.2 0.07 to 0.3 Plated 1 to 2.8 0.25 to 0.7 Plated 1 to 2.8 0.25 to 0.7 Blue --- For LP application - may be used with any minimum spring. NOTE See pages 56-57 for complete Spring Selection Chart. Capacities and Pressure Drop inches w.c. kPa Spring Selection inches w.c. kPa APPLIANCE REGULATORS C US