  
Flojet Duplex ll , Self Priming Diaphragm Demand Water Pump are designed for a wide range of applications and are constructed from a selection of materials suitable for handling a broad range of products.
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Specifications
- Applications: Automatic water systems, car wash, diesel fuel transfer,liquid transfer, road roller pumps, spraying, street sweeper pumps, cooling, circulation, filtration and dispensing.
- Operation: These self priming double diaphragm pumps have a built-in pressure switch that will automatically start and stop the pump instantaneously when a discharge valve is opened and closed.
- Duty Cycle:
Intermittent. Can be run continuously for short periods of time. The higher the duty cycle the shorter the expected life of the pump.
- Special Features:
Self priming up to 8 ft. Can run dry for short periods of time. Chemical resistant materials. . Heavy duty ball bearing drive system. Built-in back flow preventer - Internal bypass standard.
- Includes:
Pump, motor, , 2090100 (60 PSI) pressure switch, 20132-000 motor mounting grommet kit.
- Motor:
Permanent magnet, thermally protected 12 volts, DC, 7.0 amps, ball bearings
- Pump:
Two chamber positive displacement opposed diaphragm design
- Pressure setting:
60 PSI
- Maximum suction pressure: 30 PSI
- Wetted Parts:
Polypropylene housing, Buna N check valves, Buna N diaphragm.
- Priming:
Self priming up to 8 ft.
- Connections:
3/8" FNMT (Discharge port on left side looking at motor end bell)
- Dimensions:
4" high, 10" long, 4" wide.
- Weight:
5 lbs
Flojet 12 Volt DC Demand Pumps Specification Comparison Table
| Model |
Max. GPM |
Max. PSI |
Amps |
Diaphragm |
Check Valves |
Switch Setting |
Connection |
| B3131B5011A
|
1.5 |
60 |
7.0 |
Buna |
Buna |
60 PSI |
3/8” FNPT |
| Pump Capacity Table |
| Model |
Head In PSI |
| 0 |
10 |
20 |
30 |
40 |
50 |
Shut-off |
| Gallons Per Minute (GPM) |
| D3131B5011A |
1.5 |
1.4 |
1.2 |
1.1 |
0.9 |
0.3 |
60 PSI |
|