Pompe à eau sous pression Watermaster 12 l/min - 24 V - 3 bar Whale – référence FW1225

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Whale

FW1225

Watermaster 12 l/min - 24 V - 3 bar pressure water pump

The Whale Watermaster FW1225 pressure water pump is designed for freshwater and saltwater circuits on boats and recreational vehicles. With a flow rate of 12 l/min at 24 V and a pressure of 3 bar, it ensures a constant flow for 3 to 4 outlets thanks to its four-chamber head and IP65 protection. Includes 1 Whale Watermaster pump, 1 strainer, 2 1/2" barbed connectors, and 2 1/2" threaded connectors.

Retail priceBenefit from the professional rate

179,35€

179,35€ ~~197,61€~~

Shipping calculated at checkout.

Prices shown excluding VAT for United Arab Emirates. If your delivery address is in the European Union, the VAT of the destination country will be added at checkout.

Awaiting restock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

Opt for additional installation assistance

Technical specifications

Connection type	Whale® Quick Connect 15mm Female Connections
Diaphragm Material	Monprene®
Fastener material	Stainless steel
Flow Rate Max	11.5
Fluid Contact Materials	Polypropylene glass-filled, Monprene®, Nitrile®, Stainless steel
Ingress protection	IP65
Maximum current draw	3.5
Microswitch Kit Sku	AK1317
Min Wire Size Awg	16
Min Wire Size Mm2	1.5
Operating voltage	24
Power consumption	84
Pressure Cutoff Bar	3
Pressure Cutoff Psi	45
Pump Body Material	Glass-filled polypropylene, PBT
Recommended Fuse Size	5
Replacement Head Kit Sku	AK1316
Seal Material	Nitrile
Weight	1.5
Weight Lbs	3.3

Detailed description

Designed for freshwater and saltwater circuits on boats and recreational vehicles, the Whale Watermaster FW1225 pressure water pump delivers a flow rate of 12 litres per minute (3 GPM) and a maximum pressure of 3 bar (45 PSI). Operating on 24 V d.c. with a power draw of 3.5 A, it features a protected motor and wiring for reliable performance and steady flow. It complies with ISO8846 and ISO10133 standards.

Performance and technical specifications

The Whale Watermaster FW1225 pump is self-priming up to 3 metres (9 feet). It is equipped with a pump head for a constant water flow, even when multiple water outlets are used simultaneously (up to 3–4 outlets recommended). Its design allows it to run dry without damage. The IP65 rating ensures complete sealing of the motor and integrated electronics. Its weight is 1.5 kg (3.3 lbs).

Installation and connectivity

Installation of the FW1225 pump is simplified by its 15 mm female Quick-Connect system and 1/2" threaded connectors, along with 13 mm (1/2") barbed fittings for flexible hoses. It is pre-wired for quick connection and includes rubber feet to absorb vibrations and reduce operating noise. An inlet filter is included to protect the pump from debris. Fluid-contact materials include glass-reinforced polypropylene, Monprene®, Nitrile®, and stainless steel. Manufactured in the United Kingdom, this pump is recommended with a 5 A fuse.

Documentation

Type	Nom
	EN+FR - Installation Guide - Whale Watermaster - FW0814, FW1214, FW1215,

Expert opinion

« Technical analysis: Whale Watermaster FW1225 24V pressure pump »

The Whale Watermaster FW1225 pump is a relevant choice for vessels requiring a reliable and low-consumption 24 V water pressurization system. Its ability to manage a flow rate of 12 l/min at 3 bar pressure makes it suitable for supplying typically 3 to 4 water outlets simultaneously, which is common on cruising sailboats or small motor yachts. The integration of electronics and the pressure switch in a sealed IP65 housing is a major asset for durability in marine environments, minimizing corrosion risks and humidity-related failures.

From an installation standpoint, Whale’s Quick-Connect system greatly simplifies connection to existing circuits, saving significant time for installers. The integrated anti-vibration feet contribute to quieter operation, a notable factor in the confined living spaces of a boat. As with any pressure pump, it is critical to install an expansion tank upstream to optimize the pump’s duty cycle and extend its lifespan, even though the model can run dry without immediate damage. This pump is a robust solution for moderate freshwater or seawater needs, without the complexities of more sophisticated variable-flow systems.

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Watermaster 12 l/min - 24 V - 3 bar pressure water pump

179,35€

179,35€ ~~197,61€~~

Frequently Asked Questions

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What is the maximum pressure this pump can deliver?

The Whale Watermaster FW1225 pump can provide a maximum pressure of 3 bar, which is equivalent to 45 psi.

What is the manufacturer part number for this Whale Watermaster pump?

The manufacturer reference for this pump is FW1225. It belongs to the Watermaster range from the Whale brand.

What is the required supply voltage for the Whale Watermaster FW1225 pump?

The Whale Watermaster FW1225 pump is designed to operate on a 24 V DC power supply.

What is the required supply voltage for this pressure water pump?

This Whale Watermaster FW1225 pressure water pump operates on 24 V DC (direct current).

What are the main technical specifications of the Whale Watermaster FW1225 pump?

The Whale Watermaster FW1225 pump is a pressure water pump designed for freshwater circuits on boats. Its main technical specifications are:

Flow rate: 12 litres per minute (or 3.0 US gallons per minute / 11.5 litres).Voltage: 24 V DC.Pressure: 3 bar (or 45 psi).

What types of fittings are used on the Whale Watermaster FW1225 pump?

The Whale Watermaster FW1225 pump is fitted with 15 mm Quick Connect fittings, making it easier to install in boat plumbing systems.

What is the flow rate capacity of this Whale Watermaster pump?

The Whale Watermaster FW1225 pump has a flow rate of 11.5 litres per minute (3.0 US gallons per minute).

What is the maximum pressure this pump can deliver?

The Whale Watermaster FW1225 pump can deliver a maximum cut-off pressure of 3 bar (45 psi).

What is the required operating voltage for this pump?

This Whale Watermaster FW1225 pump operates on 24 V DC power.

What types of liquids can this pump handle?

This pump is designed for use only with fresh water or salt water.

Warning: It is not suitable for pumping flammable liquids, diesel, chemicals, or other similar substances.

What are the main construction materials of the Whale Watermaster FW1225 pump?

The main materials used in the construction of this pump are:

Pump body: Glass-filled polypropylene, PBT (Polybutylene Terephthalate)
Feet, diaphragm, and valves: Monprene®
Seals: Nitrile®
Fasteners: Stainless steel
Materials in contact with the fluid are glass-filled polypropylene, Monprene®, Nitrile®, and stainless steel.

What is the weight of the Whale Watermaster FW1225 pump?

The Whale Watermaster FW1225 pump weighs 1.5 kg (3.3 lbs).

What is the ingress protection (IP) rating of this pump?

The Whale Watermaster FW1225 pump has an IP65 protection rating, meaning it is protected against dust and water jets.

What types of fittings are used for the pump's inlet and outlet?

The Whale Watermaster FW1225 pump is equipped with 15 mm Whale® Quick Connect female fittings for the inlet and outlet.

For pumps sold retail, 1/2" barbed connectors (WX1584B) and 1/2" threaded connectors (WX1587B) are also included.

What fuse size is recommended for installing this pump?

A 5-ampere automotive fuse is recommended for the installation of the Whale Watermaster FW1225 pump.

What is the minimum electrical cable size required for the installation?

The minimum electrical cable size required for installing this pump is 1.5 mm² (16 AWG).

What are the mounting instructions for the Whale Watermaster pump?

For installing the pump, follow these instructions:

Install the pump in a dry and well-ventilated location.The mounting surface must be at least 19 mm (¾") thick.In a marine application, do not screw the pump directly to the boat hull. It must be mounted on a bulkhead or an additional board.

Is it necessary to install a strainer (filter) with this pump?

Yes, a strainer (Whale® filter) must absolutely be installed on the pump’s inlet side to prevent dirt or debris from entering the pump. This strainer is included with pumps sold retail.

What is the maximum suction lift and maximum discharge head of this pump?

The Whale Watermaster FW1225 pump has the following specifications:

Maximum suction height: 3 metres (9 feet)Maximum discharge height: 30 metres (99 feet)

What are the technical specifications of the Whale Watermaster FW1225 pressure water pump?

The Whale Watermaster FW1225 pressure water pump is designed for fresh water or seawater circuits on pleasure boats and recreational vehicles. Here are its main specifications:

Flow rate: 11.5 litres per minute (3.0 US gallons per minute)Voltage: 24 V d.c.Cut-off pressure: 3 bar (45 psi)Connections: Whale® Quick Connect 15mm female connectorsIP rating: IP65Maximum current draw: 3.5 amperesRecommended fuse size: 5 amperes (automotive)Minimum wire size: 1.5mm² (16 AWG)Weight: 1.5 kg (3.3 lbs)Maximum suction lift: 3 metres (9 feet)Maximum discharge head: 30 metres (99 feet)Duty cycle: Not designed for continuous use; maximum duty cycle under 33%.Fluid compatibility: Fresh water or seawater only. Not suitable for flammable liquids, diesel, or chemicals.Installation: A Whale® filter must be installed on the pump’s suction side.