The Solar Force piston pumps operate directly from a PV array, or from a battery bank charged by PV or any other power source. They can draw water from a shallow well, pond, stream, river or storage tank and can push water up-hill (230' maximum head), through miles of pipeline, or for pressurized water systems (100 psi max; minimum 60 gal. pressure tank required). They can be used for domestic, agricultural, commercial, or industrial applications. Suction capacity is 25' at sea level (subtract 1' for each 1,000' above sea level). 5-9 GPM pumping capacity. Robust, durable, and reliable, Solar Force pumps use less energy per gallon of water delivered than any other pump that we sell. The pump head is cast iron with a brass cylinder. These pumps have a proven design with a 20-year life, and are simple to maintain with common hand tools. Leather piston seals are easy to replace (5 to 10-year maintenance interval). The well illustrated installation and repair manuals make it easy to install and service. The DC models are the most efficient, but the AC models use low-surge motors with low starting torque, reducing inverter and wire size requirements. Available with 12, 24, or 48 VDC motors, or with 120 VAC or 230 VAC, 50-60 Hz motors. Solar Force pumps have 1.5" female-threaded intake ports and 1" female-threaded outlet ports. They measure about 22" x 13" x 16" high, and have a maximum weight of 115 lbs. Shipped in two boxes. 2-year warranty. The Watt values listed in the following chart represent power used by the pump. For PV array direct operation, the array must be at least 20% larger. Over-sizing the array will increase the amount of water delivered per day because a larger array will produce the pump's required wattage in less light, allowing the pump to run at full speed for more hours each day, or in cloudy weather. For example, a 560 W array will produce 280 W in one half the amount of sunlight present at noon. The extra available power will not damage the pump motor as long as the array voltage doesn't exceed the voltage range of the pump motor. Dankoff Solar Force Piston Pump Sizing Chart Lift in feet(head) Pressure Model 3010 Model 3020 Model 3040 Flow Watts Flow Watts Flow Watts 20' 8.7 psi 5.9 gpm 77 W 5.2 gpm 110 W 9.3 gpm 168 W 40' 17.4 psi 5.6 gpm 104 W 5.2 gpm 132 W 9.3 gpm 207 W 60' 26 psi 5.3 gpm 123 W 5.1 gpm 154 W 9.2 gpm 252 W 80' 35 psi 5.2 gpm 152 W 5.1 gpm 182 W 9.2 gpm 286 W 100' 43 psi 5.1 gpm 171 W 5 gpm 202 W 9.1 gpm 322 W 120' 52 psi 4.9 gpm 200 W 5 gpm 224 W 9.1 gpm 364 W 140' 61 psi 4.9 gpm 226 W 5 gpm 252 W 9.1 gpm 403 W 160' 70 psi -- -- 4.9 gpm 269 W -- -- 180' 78 psi -- -- 4.9 gpm 280 W -- -- 200' 86 psi -- -- 4.8 gpm 308 W -- -- 220' 95 psi -- -- 4.7 gpm 314 W -- -- Dankoff Solar Force Piston Pumps Model Operating Voltage Power source Item Code 3010-12B 12 VDC Battery 075-04265 3020-12B 12 VDC Battery 075-04271 3020-12PV 12 VDC PV array direct 075-04273 3020-24B 24 VDC Battery 075-04275 3020-24PV 24 VDC PV array direct 075-04277 3020-48B 48 VDC Battery 075-04279 3020-48PV 48 VDC PV array direct 075-04281 3020-120VAC 120 VAC Inverter/Grid 075-04269 3040-12B 12 VDC Battery 075-04285 3040-12PV 12 VDC PV array direct 075-04287 3040-24B 24 VDC Battery 075-04289 3040-24PV 24 VDC PV array direct 075-04291 3040-48B 48 VDC Battery 075-04293 3040-48PV 48 VDC PV array direct 075-04295 3040-120VAC 120 VAC Inverter/Grid 075-04283 3040-230VAC 230 VAC Inverter/Grid 075-04284
