Pump Model GX2, X2 GX2.5, X2.5 GX3, X3 GX4, X4 Rated Pump Speed (RPM) 640 520 420 350 640 520 420 350 640 520 420 350 500 400 300 230 190 U.S. GPM 70 55 44 36 121 96 76 63 270 220 177 146 507 404 299 225 190 LPM 264 210 165 135 461 363 288 237 1023 835 671 544 1919 1532 1135 855 695 HP 3.2 2.6 2.0 1.7 4.7 3.7 2.9 2.4 11.2 8.5 6.5 5.2 20.8 15.9 11.5 8.6 7.0 Pump Performance Data* * Approximate capacities and horsepower (HP) are based on a 100 SSU (22cP) fluid at a 50 psi (3.45 BAR) differential pressure. Refer to Characteristic Curves for capacities and horsepower at other pressures and viscosities. Centipoise (cP) = Centistokes (cSt) at fluid specific gravity of 1.0. 1GX pump models are limited by gear reducer capability (pressure / rpm / viscosity dependent). 2Flow is normal at 50 psi (3.45 BAR) differential pressure. 3Viscosity listed is maximum. Blackmer GX and X pump models are also well suited for viscosities less than 31 SSU (1 cP). 4Centipoise (cP) = Centistokes (cSt) at fluid specific gravity of 1.0. Note: Optional materials of construction may be required to meet specific application requirements — refer to Blackmer Material of Construction Sheet 101-095. GX and X Series General Duty Pumps www.blackmer.com World Headquarters 1809 Century Avenue SW Grand Rapids, MI 49503-1530 USA T 616.241.1611 F 616.241.3752 European Headquarters Zl la Plaine des Isles, rue des Caillottes 89000 Auxerre, FRANCE T +33.3.86.49.86.30 F +33.3.86.46.42.10 Printed in USA 06/08-2 M © 2008 Blackmer Distributed by: Pump Model Maximum Pump Speed Minimum Pump Speed Maximum Differential Pressure Maximum Working Pressure Maximum Operating Temperature Speed Flow2 Viscosity3 Speed Flow2 Viscosity3 RPM GPM (LPM) SSU (cP)4 RPM GPM (LPM) SSU (cP)4 PSI (BAR) PSI (BAR) °F (°C) GX21 780 87 (329) 100 (22) 190 20 (76) 20,000 (4,250) 125 (8.6) 175 (12.1) 300 (149) X2 780 87 (329) 100 (22) 68 7 (26) 75,000 (15,750) 125 (8.6) 175 (12.1) 300 (149) GX2.5 780 155 (587) 100 (22) 190 33 (125) 20,000 (4,250) 125 (8.6) 175 (12.1) 300 (149) X2.5 780 155 (587) 100 (22) 68 12 (45) 75,000 (15,750) 125 (8.6) 175 (12.1) 300 (149) GX31 640 270 (1022) 100 (22) 125 46 (174) 20,000 (4,250) 125 (8.6) 175 (12.1) 300 (149) X3 640 270 (1022) 100 (22) 68 28 (106) 75,000 (15,750) 125 (8.6) 175 (12.1) 300 (149) GX41 520 528 (1999) 100 (22) 100 90 (341) 20,000 (4,250) 125 (8.6) 175 (12.1) 300 (149) X4 520 528 (1999) 100 (22) 68 66 (250) 50,000 (10,500) 125 (8.6) 175 (12.1) 300 (149) Pump Model Standard Optional GX21 X2 2" NPT 2" Blackmer Weld 2" ANSI** 50 MM DIN** GX2.5 X2.5 2.5" NPT 2.5" BlackmerWeld 3" ANSI** 80 MM DIN** GX3 X3 3" NPT 3" Blackmer Weld 3" ANSI** 80 MM DIN** GX4 X4 4" NPT 4" Blackmer Weld 4" ANSI** 100 MM DIN** Maximum Operating Limits Pump Dimensions Pipe Companion Flanges Pump Model A B C D E F G H J K L M N Approx. Wt. with Std. Flanges GX2 in. 3⁄4 3⁄16 119⁄16 53⁄8 811⁄16 31⁄2 4 11⁄2 93⁄4 4 41⁄8 15⁄8 5 110 lbs. mm 19 5 294 137 221 89 102 38 248 102 105 41 127 50 kgs. GX2.5 in. 3⁄4 3⁄16 125⁄16 6 95⁄8 33⁄4 45⁄16 13⁄4 1011⁄16 4 51⁄16 3 51⁄2 130 lbs. mm 19 5 313 152 244 95 110 44 271 102 129 76 140 59 kgs. GX3 in. 1 1⁄4 141⁄2 61⁄2 123⁄16 45⁄8 5 21⁄2 133⁄8 53⁄8 51⁄4 21⁄2 6 230 lbs. mm 25 6 368 165 310 117 127 64 340 137 133 64 152 104 kgs. GX4 in. 11⁄8 1⁄4 185⁄8 81⁄8 151⁄2 5 73⁄8 21⁄2 167⁄8 63⁄8 8 41⁄2 8 430 lbs. mm 29 6 473 206 394 127 187 64 429 162 203 114 203 195 kgs. Pump Model A B C D E F G H J K L M N Approx. Wt. with Std. Flanges X2 in. 11⁄8 1⁄4 8 53⁄8 811⁄16 31⁄2 4 11⁄2 93⁄4 4 41⁄8 15⁄8 5 70 lbs. mm 29 6 203 137 221 89 102 38 248 102 105 41 127 32 kgs. X2.5 in. 11⁄8 1⁄4 83⁄4 6 95⁄8 33⁄4 415⁄16 13⁄4 1011⁄16 4 51⁄16 3 51⁄2 93 lbs. mm 29 6 222 152 244 95 110 44 271 102 129 76 140 42 kgs. X3 in. 11⁄8 1⁄4 95⁄8 61⁄2 123⁄16 45⁄8 5 21⁄2 133⁄8 53⁄8 51⁄4 21⁄2 6 152 lbs. mm 29 6 244 165 310 117 127 64 340 137 133 64 152 69 kgs. X4 in. 11⁄2 3⁄8 11 81⁄8 151⁄2 5 73⁄8 21⁄2 167⁄8 63⁄8 8 41⁄2 8 275 lbs. mm 38 10 280 206 394 127 187 64 429 162 203 114 203 125 kgs. GX Pump Models GX and X Pump Models SUPPLIER ** Din and ANSI Compatible flanges are Rasied Flat Faced.
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