12V Submersible Bilge Pump – Mini DC Water Circulation Pump
12V Submersible Bilge Pump – Mini DC Water Circulation Pump
12V Submersible Bilge Pump – Compact DC Water Circulation & Drainage Pump
Keep your boat, aquarium, garden, or household water system running smoothly with this powerful 12V DC Submersible Bilge Pump (Model BL-2512S). Designed for fully or partially submerged operation, this mini electromagnetic pump delivers reliable, efficient water drainage and circulation across a wide range of applications.
⚡ Important: Please supply the pump with adequate power — a 12V 5A to 12V 10A power supply is recommended for optimal performance.
What Is a DC Bilge Pump?
A micro bilge pump — also known as a micro submersible pump or 12V DC submersible pump — is a compact, low-voltage electric pump designed to be placed directly in water. It's commonly used in the bilges of boats (cruise ships, fishing boats) to remove water efficiently. Its versatile design also makes it ideal for fish tanks, water feature cycling, garden irrigation, and flower watering.
Key Features
- ✅ 12V DC Low-Voltage Operation – Safe, energy-efficient power (below 50Vac / 75Vdc)
- ✅ Electromagnetic Pump Technology – Smooth, quiet, and consistent water flow
- ✅ Fully Submersible Design – Can be completely or partially submerged
- ✅ Multi-Purpose Use – Boats, fish tanks, garden watering, water circulation systems
- ✅ Simple Wiring – Brown wire = positive (+), Blue wire = negative (−)
- ✅ Standard Structure – Compatible with marine batteries and standard 12V/24V DC power supplies
- ✅ No High-Concern Chemicals – Safe construction materials
Specifications
| Model | BL-2512S |
| Voltage | 12V DC (Low Voltage: Below 50Vac / 75Vdc) |
| Power Source | Electric (DC) |
| Pump Type | Submersible Electromagnetic Pump |
| Pressure | Low Pressure |
| Application | Water – Bilge, Fish Tank, Garden, Circulation |
| Batteries Included | No |
| Country of Origin | Made in China |
Wiring Instructions
Connect the brown wire to the positive terminal (+) of your 12V power supply, and the blue wire to the negative terminal (−). If your wire length is insufficient, you can extend it using a 1mm² gauge wire.
Common Applications
- 🚢 Boat & marine bilge drainage
- 🐟 Aquarium & fish tank water circulation
- 🌱 Garden irrigation & flower watering
- 🏠 Household water cycling systems
- ⛵ Cabin drainage on fishing boats & cruise vessels
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Frequently Asked Questions
Q: What power supply does the 12V submersible bilge pump need?
A: The BL-2512S pump requires a 12V DC power supply with a current output of at least 5A, and ideally between 12V 5A and 12V 10A. Insufficient power supply may result in reduced performance. A standard marine battery or 12V DC adapter works well.
Q: Can this submersible pump be used in a fish tank or aquarium?
A: Yes! This mini DC submersible pump is suitable for aquarium and fish tank water circulation. Its compact design and low-voltage operation make it a safe and efficient choice for water cycling in tanks and small water features.
Q: How do I wire the submersible bilge pump correctly?
A: Wiring is straightforward — connect the brown wire to the positive (+) terminal and the blue wire to the negative (−) terminal of your 12V DC power supply. If additional wire length is needed, simply extend using a 1mm² gauge wire for a safe connection.
Q: Is this pump fully waterproof and safe to submerge?
A: Yes, this is a fully submersible pump designed to operate when completely or partially submerged in water. It is commonly used in the bilges of boats and other marine applications where continuous water exposure is expected.