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Submersible pumps

Aquatec

The Aquatec SWP-4000 submersible pump is designed for off-grid locations for home and livestock water needs. It is a positive-displacement diaphragm pump, constructed with high-grade materials that are all safe for potable water usage. This product is made in the U.S.A.

This pump is designed to operate from a nominal 24 VDC PV array (72-cells in series), but can also be run with a 60-cell module. The pump requires about 110 W for nominal rated performance, but a larger array will produce the needed power in less light, extending the pumping time and volume delivered in the morning, afternoon, and on cloudy days.

For PV-direct operation an LCB pump controller should be used. Either of the two SHURflo pumpcontrollers (see previous page), the Dankoff DSP-200 (see page 233), or the Solar Converters PPT 12/24-7 (see page 239) can be used

The pump can also be powered from a 12 or 24 V battery bank. 12 V operation reduces water flow andproduction by about half of the 24 V rating. An LCB is not needed when the pump is powered from a battery, however a DC fuse or circuit breaker rated for 5 A should be installed in the positive conduc-tor.

The SWP-4000 can pump up to 230' of head (elevation change from top of water surface in the well to the top of the storage tank). It measures 3.75” at its maximum diameter, so it will fit into a 4” or larger diameter well casing. 

It is protected from internal over-pressure, and protected from moisture intrusion by double O-rings. Rugged stainless steel outer shell provides high durability and corrosion resistance. The built-in 50- mesh stainless steel water intake screen prevents debris intrusion. It comes with a factory installed 36” cable lead (use underwater splice kit for attaching power cable). The stainless steel water output nipple allows the use of water hose or 1⁄2” black poly pipe (outlet pipe should be rated for at least 150 psi). 

The pump is field serviceable and it should be serviced every 2 years if in daily operation. Made in U.S.A. Warranty is 12 months from date of purchase or 18 months from date of manufacturing.

Note: The amperages in the table below are running amperages drawn by the pump when running. PV array rated amperage needs to exceed these figures by at least 25%.

Aquatec SWP-4000 Pump Performance
Feet of Head 12 Vdc Performance 24 Vdc Performance 30 Vdc Performance
gpm Amps gpm Amps gpm Amps
20 0.62 1.1 1.35 1.3 1.70 1.4
40 0.60 1.4 1.32 1.6 1.65 1.7
60 0.58 1.7 1.28 1.8 1.6 1.9
80 0.57 1.8 1.25 2.0 1.55 2.1
100 0.56 2.2 1.22 2.3 1.50 1.48
120 0.53 2.4 1.20 2.5 1.48 2.6
140 0.52 2.7 1.15 2.6 1.42 2.8
160 0.51 2.8 1.12 2.8 1.4 3.0
180 0.49 2.9 1.08 3.1 1.35 3.2
200 0.48 3.1 1.06 3.3 1.30 3.4
230 0.43 3.5 1.00 3.5 1.25 3.7

 

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