12V Marine Diaphragm Water Pump - 3.0 GPM, 45 PSI, Automatic Pressure Switch
The AirowMarine 12V DC Marine Diaphragm Water Pump is designed for compatible boat and recreational vehicle water systems. With a listed flow rate of 3.0 gallons per minute (GPM) and a pressure rating of 45 PSI, this compact pump is an option for suitable onboard freshwater supply, washdown, and other compatible water-transfer applications.
Featuring a diaphragm pump design, a copper-core motor, integrated thermal protection, and an automatic pressure switch, the pump is designed to start and stop in response to changes in system pressure. Its compact housing and mounting layout may suit installations where space is limited.
Before ordering, verify the required voltage, flow rate, operating pressure, port connections, mounting dimensions, and intended application. Actual performance depends on the plumbing layout and operating conditions.
Product Specifications
| Specification | Details |
|---|---|
| Brand | AirowMarine |
| Product Type | 12V DC Marine Diaphragm Water Pump |
| Pump Type | Diaphragm Pump |
| Rated Voltage | 12V DC |
| Rated Flow Rate | 3.0 GPM (approximately 11.4 L/min) |
| Rated Pressure | 45 PSI (approximately 3.1 bar) |
| Motor | Copper-Core Motor, as specified |
| Motor Protection | Integrated Thermal Protection |
| Automatic Operation | Automatic Pressure Switch |
| Housing Material | UV-Stabilized ABS, as specified |
| Overall Dimensions | Approximately 205 × 107 mm; confirm dimension order and overall height |
| Mounting Dimension | Approximately 93 mm; confirm measurement reference |
| Potential Applications | Compatible marine water supply, washdown, livewell systems, and RV water systems |
| Brand / Seller | AirowMarine |
Specifications are based on the supplied product information and should be verified against the actual product label and technical drawing. Rated flow and pressure do not necessarily represent performance under every installation condition.
Key Features
1. 3.0 GPM Rated Flow and 45 PSI Pressure
With a listed flow rate of 3.0 GPM (approximately 11.4 L/min) and a pressure rating of 45 PSI (approximately 3.1 bar), this 12V marine diaphragm pump can be compared with the requirements of a compatible water system. Actual delivered flow may vary with hose length, pipe diameter, fittings, lift height, restrictions, and available voltage.
2. Automatic Pressure Switch
The integrated pressure switch is designed to control pump operation according to system pressure. In a compatible installation, opening an outlet may lower pressure and trigger the pump to start. Closing the outlet may allow pressure to rise until the switch stops the pump. Correct plumbing and installation are important for reliable operation.
3. Copper-Core Motor and Thermal Protection
The pump is specified with a copper-core motor and integrated thermal protection. Thermal protection is designed to help protect the motor against excessive operating temperatures. Confirm the rated current, fuse requirement, and recommended wire gauge before connecting the pump to a 12V DC electrical system.
4. Compact Installation Layout
The listed body dimensions are approximately 205 × 107 mm, with a mounting measurement of approximately 93 mm. Check the full technical drawing for overall height, inlet and outlet positions, mounting-hole spacing, and hose clearance before choosing an installation location.
5. Housing for Compatible Marine Installations
The listed housing material is UV-stabilized ABS. Suitability for a particular marine environment depends on the complete pump construction, wetted materials, seals, and environmental protection rating. Do not assume the pump is submersible or suitable for direct seawater exposure unless the manufacturer confirms this.
Recommended Applications
- Boat Freshwater Supply: For compatible onboard freshwater plumbing and water delivery systems.
- Boat Washdown: For suitable deck or equipment washdown setups when the pump's flow, pressure, and materials meet the system requirements.
- Livewell and Baitwell Systems: For compatible water circulation or supply applications where the required flow, pressure, and duty cycle match the pump specifications.
- RV Water Systems: For recreational vehicle installations using a compatible 12V DC water system.
- Small Watercraft: For suitable water-system installations on boats and other small vessels.
This product is a diaphragm water pump, not a dedicated bilge drainage pump. Use a pump specifically designed for bilge-water removal when draining a boat's bilge.
Compatibility and Installation Notes
- Voltage: Confirm that your electrical system provides a compatible 12V DC supply.
- Flow Rate: Check whether the listed 3.0 GPM rating meets your system's water demand.
- Pressure: Verify that the 45 PSI rating is appropriate for your hoses, fittings, and connected equipment.
- Port Connections: Confirm inlet and outlet sizes, thread types, and compatible hose fittings before ordering.
- Mounting Space: Compare the complete product drawing with your installation area, including height and hose clearance.
- Electrical Protection: Check the rated current, fuse size, wire gauge, and connection requirements using the manufacturer's instructions.
- Water Compatibility: Verify that the pump's internal materials and seals are suitable for the water type and operating conditions.
Install the pump according to the manufacturer's instructions and use suitable plumbing, mounting hardware, and electrical protection. Do not operate the pump dry unless dry running is expressly permitted by the manufacturer.
Frequently Asked Questions
Is this a 12V marine water pump?
Yes. This model is listed as a 12V DC marine diaphragm water pump. Confirm your electrical system and wiring requirements before installation.
What is the rated flow rate?
The listed rated flow is 3.0 GPM, approximately 11.4 liters per minute. Actual delivered flow depends on plumbing resistance, lift height, fittings, voltage, and other operating conditions.
What is the pressure rating?
The supplied product information lists a pressure rating of 45 PSI, approximately 3.1 bar. Confirm whether this refers to the pressure-switch cutoff, maximum operating pressure, or another manufacturer-defined rating before treating it as a maximum system pressure.
Does the pump turn on and off automatically?
The pump is listed with an automatic pressure switch. In compatible plumbing, it is designed to start and stop as system pressure changes. Follow the manufacturer's setup and installation instructions.
Can it be used for drinking water?
The supplied specifications do not establish potable-water certification. If the water will be used for drinking or cooking, confirm that the pump and all wetted components are approved for potable-water contact.
Can it be used with saltwater?
Saltwater compatibility has not been established by the supplied specifications. Confirm the manufacturer's approval for saltwater use and the compatibility of all internal components and seals before using the pump in a saltwater system.
Can this pump replace a bilge pump?
No such use is established by the supplied specifications. This product is described as a diaphragm water pump for compatible supply and transfer applications. Select a dedicated bilge pump for bilge drainage.
Is it suitable for an RV?
It may suit an RV water system if the voltage, flow, pressure, port connections, materials, and installation requirements are compatible. Verify the system specifications before ordering.
What should I check before installation?
Confirm the power supply, rated current, fuse and wiring requirements, inlet and outlet connections, mounting dimensions, and system pressure requirements. Follow the manufacturer's installation instructions.
Ordering and Shipping Information
This product is listed as in stock. Please confirm current inventory before publishing or accepting orders. Delivery time depends on the destination, selected shipping service, and order processing conditions.
Before placing your order, review the voltage, rated flow, pressure, port connections, dimensions, and intended application. Contact AirowMarine if you need help checking compatibility with your existing water system.
Product Compatibility Disclaimer
This product is sold under the AirowMarine brand. References to boats, yachts, RVs, livewells, and washdown systems describe potential applications and do not guarantee compatibility with every vessel or installation. Verify the product specifications, electrical requirements, water compatibility, and manufacturer guidance before ordering and installation.