SEAFLO 12V 1.2GPM 40PSI Compact Water Pressure Pump 23A Series
DP101204023A
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Compact 12V on-demand water pump
A self-priming diaphragm pump for small marine, caravan and RV water systems. It provides up to 1.2GPM open flow and automatically starts when an outlet opens, then stops when system pressure reaches 40PSI.
Technical specifications
| Manufacturer model | SFDP1-012-040-23A |
| Supply voltage | 12V DC |
| Open flow | 1.2GPM / 4.3LPM |
| Shut-off pressure | 40PSI / 2.8bar |
| Maximum current draw | 4.2A |
| Self-priming height | Up to 1.5m / 5ft |
| Pump type | Diaphragm pump with on-demand pressure switch |
| Protection | IP54 with protective cover; ignition protected |
| Duty/features | Short dry-run capability; configurable bypass/reflux design |
| Approximate size | 18 x 10.5 x 7cm |
| Unit weight | Approximately 0.6kg |
| Compliance | CE and RoHS |
Applications and compatibility
- For a single tap, small galley, hand-wash station or compact 12V water circuit requiring slightly more flow than the 1.0GPM version.
- Use where connected taps, filters and appliances accept a 40PSI pressure-switch setting.
- Not intended for several simultaneous outlets or high-flow domestic-style showers.
- For compatible clean-water service only; never use with petrol, diesel, solvents or flammable liquids.
Installation and package contents
- Mount dry and ventilated on a stable surface with vibration isolation and access for servicing.
- Fit an inlet strainer and airtight suction plumbing; confirm the required quick-connect tube size before installation.
- Protect the circuit with correctly sized cable and fuse based on the 4.2A maximum draw and cable run.
- Package contains one SEAFLO 23A pressure pump. Connector options vary, so verify the fittings supplied with this product before ordering.
Frequently asked questions
What is the difference from the 1.0GPM version?
This model has a higher 1.2GPM / 4.3LPM open-flow rating and a 4.2A maximum draw.
Does it run only when a tap opens?
Yes. The on-demand pressure switch starts and stops the pump automatically.
Is 1.2GPM delivered at 40PSI?
No. Open flow is measured without pressure; flow decreases as system pressure rises.
Can it run dry?
It tolerates brief dry running, but continuous dry operation should be avoided.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
