Flojet 3.7 GPM Quad II Automatic 12 Volt DC, 45 PSI, Self Priming Demand Water Pumps are designed for a wide range of applications and are constructed from a selection of materials suitable for handling a broad range of products.
Suitability for the application should be determined by actual use and is the full responsibility of the buyer. No warranty, expressed or implied, can be extended by the equipment manufacturer where failure is caused by chemical attack on pump materials. Temperature, aeration, concentration, and other factors may change the effect of the specific fluid on the pump materials. Only pumps with Santoprene / EPDM elastomers are recommended for potable water. Units are NOT designed for permanent residential domestic water applications.
Do not assume chemical compatibility.
If the fluid is improperly matched to the pumps Elastomers,
the pump may fail to prime, leak, have low pressures
or the pressure switch may not shut off.
Specifications
Applications:Automatic water systems, liquid transfer, spraying, 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, 2090104 (45 PSI) pressure switch, 20132-000 motor mounting grommet kit. # Two 20381-002 straight 1/2" hose barb adapters.
Motor:Permanent magnet, thermally protected 12 volts, DC, 9.0 amps, ball bearings
Pump:Two chamber positive displacement opposed diaphragm design
Pressure setting: 30 PSI Cut-in, 45 PSI Cut-out
Maximum Operating Pressure: 40 PSI
Maximum suction pressure: 30 PSI
Wetted Parts:Modified polypropylene housing, Santoprene diaphragm.
EDPM check valves,
Priming: Self priming up to 8 ft.
Minimum Spray Tip Required: 9/64" (Spraying applications only)
Connections: Plug-in ports to accept removable adapters. 3/4" hose barb adapters included (0-ring material EPDM). Other adapters available for easy installation.
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 |
| 4300-142A |
3.7 |
45 |
9.0 |
Santoprene |
EPDM |
30-45 PSI |
1/2" Barb |
| Pump Capacity Table |
| Model |
Head In PSI |
| 0 |
10 |
20 |
30 |
40 |
Shut-off |
| Gallons Per Minute (GPM) |
| 4300-142A |
3.5 |
3.0 |
2.8 |
2.4 |
2 |
45 PSI |
FJC-PMP-4300-142A-Diaphragm-Bulletin.pdf
TIMES