SEAFLO 12V 3.0GPM 45PSI Water Pressure Pump 33 Series Marine RV
DP103004533
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Three-chamber on-demand water pressure pump
A 12V self-priming diaphragm pump for marine, caravan and RV water systems requiring up to 3.0GPM open flow and a 45PSI cut-off. The automatic pressure switch starts the pump as outlets open and stops it when system pressure is restored.
Technical specifications
| Manufacturer model | SFDP1-030-045-33 |
| Supply voltage | 12V DC |
| Open flow | 3.0GPM / 11.3LPM |
| Shut-off pressure | 45PSI / 3.1bar |
| Maximum current draw | 6.74A |
| Self-priming height | Up to 1.8m |
| Pump type | Three-chamber diaphragm pump with adjustable pressure switch |
| Ports | 1/2in-14 male threaded / supplied quick-connect configuration |
| Materials | Santoprene diaphragm and EPDM valves |
| Duty | Intermittent; short dry-run capability |
| Fluid temperature | Up to 60°C / 140°F |
| Wiring | 16AWG leads, approximately 27cm |
| Approximate size | 26.4 x 14.3 x 13cm |
| Unit weight | Approximately 1.92kg |
| Compliance | CE, RoHS, PAHs, REACH and ISO 8846 listed |
| Manufacturer warranty | 2 years |
Applications and compatibility
- For multiple taps, galley, washbasin or compact shower systems on 12V yachts, motorboats, caravans and RVs.
- Manufacturer material describes the 33 Series as suitable for three or more 13mm outlets, subject to actual demand and pipe losses.
- Confirm the 45PSI setting is acceptable for any water heater, filter, accumulator and tap connected to the system.
- Not suitable for fuel, solvents or other flammable liquids.
Installation and package contents
- Mount dry and ventilated on the full rubber base, with access for winterising and servicing.
- Use an inlet strainer, reinforced hose and airtight suction plumbing; an accumulator can reduce cycling and pulsation.
- Wire through a correctly rated fuse using cable sized for the 6.74A maximum draw and circuit length.
- Package contains one SEAFLO 33 Series pump. Confirm the exact quick-connect adapters and strainer supplied with the unit before ordering.
Frequently asked questions
Does the pump start automatically?
Yes. The on-demand pressure switch controls start and stop as outlets are used.
Can it supply several outlets?
It is designed for multi-outlet systems, but simultaneous performance depends on total demand and plumbing losses.
Can it run dry?
It tolerates short dry-run periods; prolonged dry running should be avoided.
Is 3.0GPM available at 45PSI?
No. 3.0GPM is the open-flow rating; flow reduces as pressure increases.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
