Mini DC Diaphragm Water Pump RF-310 | 3.7V–6V Self-Priming DIY
Mini DC Diaphragm Water Pump RF-310 | 3.7V–6V Self-Priming DIY
Mini DC Diaphragm Water Pump – RF-310 Motor | Self-Priming Micro Pump
This compact RF-310 Mini Diaphragm Water Pump is the perfect component for makers, hobbyists, and engineers looking for a reliable self-priming micro pump for DIY electronics, garden automation, aquarium setups, small appliances, and more. With a wide operating voltage range of DC 3.7V to 7.4V, it is compatible with common lithium batteries, USB power banks, and small DC power supplies — making it incredibly versatile for prototyping and finished projects alike.
Key Specifications
- Model: RF-310 Motor Mini Pump
- Type: Self-Priming Diaphragm Pump (also handles air)
- Rated Voltage: DC 6V
- Operating Voltage Range: DC 3.7V – 7.4V
- Test Current @ 6V: 150 mA
- Suction Lift: ≥ 1 metre
- Lift Height: ≥ 2 metres
- Material: Metal housing
- Certification: CE
- Origin: Made in China
Why Choose This Micro Pump?
- 🔧 Self-Priming Design – Draws water independently without needing to be pre-filled, ideal for compact and enclosed systems.
- ⚡ Wide Voltage Compatibility – Runs on 3.7V, 5V, or 6V DC, making it easy to integrate with Arduino, Raspberry Pi, or any small DC power source.
- 💧 Dual-Function – Moves both water and air, useful for a wide variety of DIY applications.
- 🏗️ Compact & Lightweight – Tiny footprint fits into tight spaces and small project housings.
- 🔩 Durable Metal Construction – Built to handle continuous-duty operation in maker and hobby projects.
Typical Applications
- DIY automatic plant watering systems
- Small fountain and aquarium circulation
- Prototype liquid transfer and dispensing
- Arduino / Raspberry Pi projects
- Air pumping for small inflatable or pressure testing rigs
- Miniature cooling and circulation loops
Package Contents
- 1 × RF-310 Mini Diaphragm Water Pump
Note: Batteries and power supply are not included. Colour may vary slightly from images due to monitor settings. Allow for minor measurement tolerances on stated dimensions and ratings.
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Frequently Asked Questions
Q: What voltage does the RF-310 mini diaphragm water pump run on?
A: The pump operates across a wide range of DC voltages from 3.7V to 7.4V, with a rated voltage of 6V. This makes it compatible with single-cell lithium batteries (3.7V), USB 5V supplies, and standard 6V DC adapters — ideal for Arduino, Raspberry Pi, and other hobbyist electronics projects.
Q: Is this pump self-priming, and can it pump air as well as water?
A: Yes — this is a self-priming diaphragm pump, meaning it can draw liquid up from below without pre-filling. Its diaphragm design also allows it to move air, giving it dual-function capability useful in a range of DIY applications such as small fountain systems, automated plant watering, and pressure or inflation testing rigs.
Q: What is the suction lift and maximum lift height of this mini pump?
A: The RF-310 mini pump delivers a suction lift of at least 1 metre and a total lift (head) of at least 2 metres. These figures make it well-suited for compact liquid transfer tasks, small aquarium circulation, and garden watering automation projects.
Q: Is this pump compatible with Arduino or Raspberry Pi projects?
A: Absolutely. The low voltage requirements (3.7V–7.4V DC) and low current draw (approximately 150 mA at 6V) make the RF-310 mini pump an excellent match for microcontroller-based projects. Simply control it via a small relay module or MOSFET transistor from your Arduino or Raspberry Pi output pins.