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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 15 Capacities expressed in CFH m3 h 0.64 sp gr gas Model Pipe Size Outlet Pressure Set Point CSA MAX CFH Operating Inlet Pressure 0.5 psi 3.4 kPa 0.75 psi 5.2 kPa 1 psi 6.9 kPa 2 psi 13.8 kPa 5 psi 34.5 kPa 10 psi 69.0 kPa 325-3 38 x 38 12 x 12 4.0 w.c. 1.0 kPa 150 4.2 160 4.5 190 5.4 220 6.2 220 6.2 300 8.5 320 9.1 7.0 w.c. 1.7 kPa 150 4.2 120 3.4 150 4.2 180 5.1 220 6.2 290 8.2 320 9.1 10.0 w.c. 2.5 kPa 150 4.2 100 2.8 120 3.4 150 4.2 220 6.2 280 7.9 320 9.1 325-5 12 x 12 34 x 34 1 x 1 4.0 w.c. 1.0 kPa 325 9.2 340 9.6 390 11.0 450 12.7 560 15.9 680 19.3 750 21.2 7.0 w.c. 1.7 kPa 325 9.2 260 7.4 360 10.2 410 11.6 530 15.0 680 19.3 750 21.2 10.0 w.c. 2.5 kPa 325 9.2 240 6.8 320 9.1 360 10.2 500 8.5 650 18.4 750 21.2 325-7A 1 14 x 1 14 1 12 x 1 12 4.0 w.c. 1.0 kPa 850 24.0 1060 30.0 1190 33.7 1600 45.3 2090 59.2 2190 62.0 7.0 w.c. 1.7 kPa 780 22.0 950 26.9 1060 30.0 1500 42.5 1860 52.7 2060 58.3 10.0 w.c. 2.5 kPa 650 18.4 860 24.4 990 28.0 1300 36.8 1620 45.9 2060 58.3 325-9 1 12 x 1 12 2 x 2 4.0 w.c. 1.0 kPa 1815 51.4 2075 58.8 2250 63.7 2660 75.3 3550 100.5 3750 106.2 7.0 w.c. 1.7 kPa 1430 40.5 1660 47.0 1960 55.5 2570 72.8 3420 96.8 3750 106.2 10.0 w.c. 2.5 kPa 1275 36.1 1450 41.1 1720 48.7 2160 61.2 3150 89.2 3750 106.2 Model Number CSA Certified Standard Spring Other Springs Available 2 psi 13.8 kPa 5 psi 34.5 kPa 325-3 5 to 9 1.25 to 2.25 Plated 7 to 11 1.7 to 2.7 White 6 to 10 1.5 to 2.5 Plated 7 to 11 1.7 to 2.7 White 4 to 12 1.0 to 3.0 Violet 2 to 6 0.5 to 1.5 Plated 10 to 22 2.5 to 5.5 Red 15 to 30 3.7 to 7.5 Yellow 1 to 2 psi 6.9 to 13.9 Tagged 325-5 5 to 9 1.25 to 2.25 Plated 7 to 11 1.7 to 2.7 White 6 to 10 1.5 to 2.5 Plated 7 to 11 1.7 to 2.7 White 4 to 12 1.0 to 3.0 Violet 2 to 6 0.5 to 1.5 Plated 10 to 22 2.5 to 5.5 Red 15 to 30 3.7 to 7.5 Yellow 1 to 2 psi 6.9 to 13.9 Tagged 325-7A 4 to 12 1.0 to 3.0 Violet 2 to 5 0.5 to 1.5 Plated 10 to 22 2.5 to 5.5 Red 15 to 30 3.7 to 7.5 Yellow 20 to 42 5.0 to 10.4 Black 325-9 4 to 12 1.0 to 3.0 Violet 2 to 5 0.5 to 1.5 Plated 10 to 22 2.5 to 5.5 Red 15 to 30 3.7 to 7.5 Yellow 20 to 42 5.0 to 10.4 Black NOTE See pages 56-57 for complete Spring Selection Chart. NOTE Maximum Individual Load 325-3B is 100 CFH 2.8 m3 h 325-5B is 325 CFH 9.2 m3 h 325-7AB is 1250 CFH 35.4 m3 h 325-9B is 2250 CFH 63.7. Approval based on use as an appliance regulator. Set points in CFH 325-3B 50 325-5B 150 325-7AB 500 325-9B1000. See pages 58-59 for Regulator Sizing Requirements and Examples. Model 7.0 w.c. 1.7 kPa 0.5 psi 3.4 kPa 0.75 psi 5.2 kPa 1 psi 6.9 kPa 2 psi 13.8 kPa 325-3 145 4.0 204 5.8 250 7.0 289 8.2 325-5 400 11.3 550 15.6 670 19.0 770 21.8 325-7A 815 23.1 1149 32.5 1405 39.8 1624 46.0 2305 65.3 325-9 1360 38.5 2113 59.8 2557 72.4 2949 83.5 4059 114.8 Spring Selection Chart inches w.c. kPa unless noted Capacities based on 1 w.c. pressure drop from set point Pressure Drop 0.64 sp gr gas expressed in CFH m3 h for system pressure drop calculations APPLIANCE REGULATORS C US UA.TR.012-13