SolarForce Piston Pump Technical Data
The Dankoff Solar Force Piston Pump is the ultra-efficient pump in the Dankoff product line, capable of pumping over long distances directly from a PV panel in low light conditions.
With up to 75% better efficiency over centrifugal or AC pumps, the Solar Force Piston Pump coupled with the Dankoff DC Controller offers unparalleled performance for regions with low light weather patterns, and is dirt and dry run tolerant. Proven design with a 20-year life expectancy, simple to maintain with common tools (5-10 yr maintenance interval).
Construction
- Cast iron body; brass cylinder and valve seats
- Leather cup piston seals; neoprene valve seals
- Oil-bath crankcase
- Gear (timing) belt drive on PV models; standard V-belt on B models
- Pressure relief valve; surge tank included
- Permanent magnet DC motor; mechanical drive allows engine or hand-lever backup
Suction capacity & fittings
- 25 vertical feet (7.6 m) at sea level; subtract 1 ft for every 1,000 ft elevation
- Intake piping minimum 1 in (3010, 3020 models) or 1 ¼ in (3040); place the pump as close to the water source as possible
- Intake: 1 ¼ in female pipe thread; outlet: 1 in female pipe thread
Voltages & system requirements
- 12, 24, 48 VDC; 115 V or 230 VAC, 50-60 Hz — PV-direct full working voltage is typically 20% higher than nominal
- Solar-direct systems: rated PV array power must exceed chart watts by 20% or more; a pump controller (linear current booster) is required; a solar tracker may increase daily yield 40-55% in summer
- Pressurizing systems: battery power system, pressure switch, and captive-air pressure tank of minimum 60 gallon (230 l)
Dimensions & warranty
- 22 × 13 × 16 in high (56 × 33 × 41 cm); with surge tank, total height 26 in (60 cm)
- Weight max. 80 lb (36 kg); shipped in 2 to 3 boxes
- Warranty: 2 years against defects in materials and workmanship
Performance chart
Total Lift = vertical distance from water surface to outlet. Model designation: V = voltage, B = battery model, PV = PV array-direct model. Specifications may vary ±10%; PV models measured at 14, 28, or 56 V (array direct).
| Total vertical lift | Model 3010-V-B | Model 3020-V-B or PV | Model 3040-V-B or PV | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ft | m | PSI | kg/cm² | GPM | LPM | W | GPM | LPM | W | GPM | LPM | W |
| 20 | 6.1 | 8.7 | 0.61 | 5.9 | 22.3 | 77 | 5.2 | 19.7 | 110 | 9.3 | 35.2 | 168 |
| 40 | 12.2 | 17.4 | 1.22 | 5.6 | 21.3 | 104 | 5.2 | 19.7 | 132 | 9.3 | 35.2 | 207 |
| 60 | 18.3 | 26 | 1.83 | 5.3 | 20.2 | 123 | 5.1 | 19.3 | 154 | 9.2 | 34.9 | 252 |
| 80 | 24.4 | 35 | 2.44 | 5 | 19.7 | 152 | 5.1 | 19.3 | 162 | 9.2 | 34.9 | 286 |
| 100 | 30.5 | 43 | 3.05 | 5.1 | 19.2 | 171 | 5 | 18.9 | 202 | 9.1 | 34.5 | 322 |
| 120 | 36.6 | 52 | 3.66 | 4.9 | 19.2 | 200 | 5 | 18.9 | 224 | 9.1 | 34.5 | 364 |
| 140 | 42.7 | 60 | 4.27 | 4.9 | 18.7 | 226 | 5 | 18.9 | 252 | 9.1 | 34.5 | 403 |
| 160 | 48.8 | 70 | 4.88 | — | — | — | 4.9 | 18.6 | 269 | — | — | — |
| 180 | 54.9 | 78 | 5.49 | — | — | — | 4.9 | 18.6 | 280 | — | — | — |
| 200 | 61 | 87 | 6.1 | — | — | — | 4.8 | 18.2 | 308 | — | — | — |
| 220 | 67.1 | 96 | 6.71 | — | — | — | 4.7 | 17.8 | 314 | — | — | — |
Transcribed from the official Dankoff Solar technical data sheet. Subject to technical changes — the PDF is the authoritative version. Not sure this is your pump? The calculator will match one to your system.
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