The R385 DC Water Pump is a compact and efficient brushed DC motor–driven pump designed for low-voltage water transfer applications. Operating across a wide 6–12 V DC range, it delivers reliable flow for DIY projects, cooling systems, fountains, RO setups, and small automation tasks. Its simple two-wire interface and lightweight construction make it easy to integrate into embedded and hobby systems.
Core Pump Specifications
• Pump Type: DC brushed water pump
• Model: R385
• Operating Voltage: 6 V – 12 V DC
• Fluid Type: Clean water (non-corrosive)
Electrical & Interface
• Power Supply: 6–12 V DC
• Current Consumption: Load dependent (varies with voltage and head)
• Control Method: Direct DC supply (relay / MOSFET recommended)
• Interface: 2-wire (DC motor terminals)
Performance Characteristics
• Stable water flow for small systems
• Flow rate and pressure increase with voltage
• Continuous operation possible with adequate cooling
• Performance depends on inlet/outlet height and tubing
Physical Characteristics
• Body Material: Metal motor housing with pump head
• Inlet / Outlet: Hose pipe fittings
• Form Factor: Compact and lightweight
• Mounting: Inline or base-mounted (application dependent)
Compatibility
• Arduino (with relay or motor driver)
• ESP8266 / ESP32
• Raspberry Pi
• Battery-powered systems
• Power adapters (6–12 V DC)
Key Advantages
• Wide operating voltage range
• Simple and robust DC motor design
• Easy to control using relays or MOSFETs
• Cost-effective solution for water transfer
Technical Insights
• Not self-priming; ensure water at inlet before operation
• Avoid dry running to prevent damage
• Use flyback diode or motor driver for MCU control
• Suitable for clean water only
Applications
• DIY water circulation systems
• RO and water purifier setups
• Cooling and heat dissipation systems
• Small fountains and aquariums
• Smart irrigation and automation projects
Pro Tip
• Use a regulated DC power supply for consistent flow
• Add a filter at the inlet to prevent debris entry
• Do not operate without water for extended periods
• Match tubing size to pump outlet for best performance
Package Includes
• 1 × R385 DC 6–12 V Water Pump