SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO 12V Water Pressure Pump 4.0 GPM 55 PSI 42-Series Marine RV SFDP1-040-055-42
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO 12V Water Pressure Pump 4.0 GPM 55 PSI 42-Series Marine RV SFDP1-040-055-42
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO 12V Water Pressure Pump 4.0 GPM 55 PSI 42-Series Marine RV SFDP1-040-055-42
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO Pressure Pump 42 Series 12V 4.0 gpm 55 psi - 4Boats
SEAFLO 12V Water Pressure Pump 4.0 GPM 55 PSI 42-Series Marine RV SFDP1-040-055-42

SEAFLO 12V Water Pressure Pump 4.0 GPM 55 PSI 42-Series Marine RV SFDP1-040-055-42

DP104005542

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Β£88.99
/
Tax included.

SEAFLO 42 Series Water Pressure Pump

Model: SFDP1-040-055-42 | 4.0 GPM | 55 PSI

The Seaflo 42 Series is a premium 4-chamber positive displacement diaphragm pump designed for high-demand water systems in marine and RV environments. This model features advanced internal bypass technology, which significantly reduces pump cycling (on/off switching) under low-flow conditions. This allows for a smoother, quieter water flow and often eliminates the need for an external accumulator tank.

RELIABILITY: Engineered with a heavy-duty motor, Santoprene diaphragm, and EPDM valves to meet or exceed OEM standards for longevity and performance.

Key Features

  • βœ” Internal Bypass reduces rapid cycling
  • βœ” Self-priming up to 6 vertical feet (1.8m)
  • βœ” Run-dry capable without damage
  • βœ” Rubber mounting base for noise reduction
  • βœ” Automatic pressure switch (on-demand)

Technical Specs

Voltage: 12V DC
Flow Rate: 4.0 GPM (15.1 LPM)
Shut-off Pressure: 55 PSI (3.8 BAR)
Max Draw: 13.0 Amps
Ports: 1/2"-14 MNPT
Max Temp: 60Β°C (140Β°F)

Compatibility / Fitment Guide

Application Use Case Notes
Marine / Boating Pressurised Fresh Water Systems Supports multiple fixtures
RV / Caravans Potable Water Supply Quiet operation for night use
Agricultural Spraying & Transfer Chemically resistant valves

OEM Cross Reference

Shurflo Equivalent 4008 / 4148 Series (e.g. 4148-153-E75)
Flojet Equivalent 4325 Series / 04405143A

Questions & Answers

Is this a genuine original part?

This is a premium SEAFLO original product, manufactured to international ISO 9001:2015 standards and certified with CE and RoHS for quality assurance.

Do I need an accumulator tank with this pump?

In most applications, no. The internal bypass allows the pump to bleed off excess pressure when demand is low, preventing the "hammering" or rapid cycling typically solved by an accumulator tank.

Can this pump handle saltwater?

Yes, the materials (Santoprene/EPDM) are resistant to corrosion, making it suitable for both fresh and saltwater transfer and washdown applications.

Note: Please verify your plumbing requirements and electrical fuse ratings before installation. Domain: 4boats.co.uk

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