4Boats
SEAFLO 42 Series 24V 5.0GPM 55PSI Water Pressure Pump Marine RV SFDP2-050-055-42
SEAFLO 42 Series 24V 5.0GPM 55PSI Water Pressure Pump Marine RV SFDP2-050-055-42
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SEAFLO 42 SERIES 24V PUMP
SFDP2-050-055-42 | 5.0 GPM | 55 PSI
The SEAFLO 42 Series is a heavy-duty, 4-chamber positive displacement diaphragm pump designed specifically for high-demand water systems. Featuring Internal Bypass Technology, this pump significantly reduces rapid cycling (pulsating), providing a smoother, quieter flow even when multiple taps are in use. Engineered for the rigors of marine and RV environments, it is capable of self-priming up to 6 vertical feet and can safely run dry without damage.
Key Features
- ✔ Internal Bypass: Reduces pump cycling for smoother flow.
- ✔ Self-Priming: Up to 6 feet (1.8m) vertical lift.
- ✔ Run Dry Capable: Safe for intermittent dry operation.
- ✔ Quiet Operation: Vibration-dampening rubber mounting base.
- ✔ On-Demand: Automatic pressure switch control.
Technical Specs
| Model: | SFDP2-050-055-42 |
| Voltage: | 24V DC |
| Open Flow: | 5.0 GPM (18.9 LPM) |
| Shut-off Pressure: | 55 PSI (3.8 BAR) |
| Max Draw: | 7.5 Amps |
| Ports: | 1/2"-14 MNPT |
| Valves / Diaphragm: | EPDM / Santoprene |
Compatibility / Fitment Guide
| System Type | Application | Notes |
|---|---|---|
| Marine / Yacht | Freshwater delivery to multiple fixtures | Compatible with salt water use |
| RV / Caravan | Motorhome pressurized water systems | Direct upgrade for 3.0 GPM pumps |
| Agricultural | Spraying and filtration systems | Intermittent duty cycle recommended |
OEM Cross Reference
| Shurflo Equivalent | 4048 Series (24V) |
| Jabsco Equivalent | Par-Max HD4 (24V Models) |
| Flojet Equivalent | R3526 Series (24V) |
Questions & Answers
Is this a genuine original part?
This is a genuine SEAFLO 42 Series pump, manufactured to meet highest industry standards for fitment and high-flow performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN (SFDP2-050-055-42) and ensuring your system is 24V DC. If you are replacing a 3.0 GPM pump, this 5.0 GPM model serves as a high-flow performance upgrade.
What is the benefit of Internal Bypass technology?
The internal bypass allows the pump to redirect water internally when the demand is low (e.g., a tap is only slightly open). This prevents the pump from rapidly switching on and off, which reduces noise and extends the life of the pressure switch.
Note: Please verify your original part number and system voltage against the references above before purchasing. Available at 4boats.co.uk.
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