6V Mini Air Pump

6V Mini Air Pump

60KPa 2.4l/minute Aquarium Medical Air Tank Gas Oxygen Motor Ventilation

     The 6V mini air pump is a small diaphragm air pump driven by a 370 type DC motor. As the motor turns, the diaphragm in the pump head draws in and pushes out air; this provides a continuous air or gas flow to aquariums, hydroponic systems, blood pressure monitor cuffs and similar small volumes. There is a single air port on the front face of the pump head; the tubing is fitted to this port.

     It is made for low voltage: it runs in the 3V - 6V range and can be powered from a 5V USB source, a power bank or 4 AA batteries. This is what separates it from the 12V mini air pump with the same body, and makes it suitable for portable, battery powered setups. It offers about 60KPa pressure and an open-flow air flow of about 2.4l/minute.

     With its small body of 68mm length and 27mm diameter and about 60gr weight it fits easily inside a device. It consists of a metal motor body and a plastic pump head; the air port has an outer diameter of about 4.2mm and silicone or aquarium air tubing with about 4mm inner diameter fits onto it. It pumps only air and gas; it does not pump water or liquids.


Features:

• Product type: mini diaphragm air pump with 370 type DC motor
• Operating voltage: DC 3V - 6V (runs from 5V USB)
• Operating current: up to about 500mA under load (lower without load)
• Pressure: about 60KPa
• Air flow: about 2.4l/minute in open flow; drops as back pressure rises
• Medium: air and gas only; it does not pump water or liquids
• Port: 1 air port (on the front face of the pump head, about 4.2mm outer diameter)
• Tubing: silicone or aquarium air tubing with about 4mm inner diameter
• Power options: 5V USB adapter, power bank, 4 AA batteries (about 6V)
• Flow adjustment: by lowering the supply voltage or by driving it with PWM
• Control: with Arduino, ESP32 and timer circuits through a MOSFET or relay module
• Noise: about 55dB - 65dB
• Life: at least 10000 cycles (10s on, 7s off cycle)
• Material: metal motor housing, plastic pump head
• Colour: silver motor, cream white pump head
• Dimensions: about 68mm length (including motor terminals and air port) x 27mm diameter (pump head; motor housing about 24mm)
• Weight: about 60gr

Usage information:

• Power the pump from a 5V USB adapter, power bank or a 3V - 6V battery pack that can deliver at least 500mA; connect the supply to the motor terminals.
• Fit the 4mm inner diameter tubing to the air port on the front face of the pump head; while it runs, check with your finger that the port is blowing. In an aquarium, fit an air stone to the underwater end of the tubing for finer bubbles.
• The pump draws up to about 500mA under load; do not power it directly from a control board pin, switch it on and off through a MOSFET or relay module and add a reverse diode across the motor terminals.

Application areas:

•  Small aquarium and fish tank aeration (oxygen supply)
•  Aerating the nutrient solution in hydroponic and aquaponic systems
•  Portable fish aeration powered by batteries or a power bank
•  Blood pressure monitor cuff and small air cushion inflation setups
•  Small balloon and inflation mechanisms
•  Air bubble effect in aquarium decorations
•  Supplying air to gas and air quality sensor test chambers
•  Massage and beauty device prototypes
•  Education, STEM and science experiment projects with Arduino and ESP32

Precautions:

•  The pump is for air and gas only. Do not draw water or liquids; if liquid gets into the pump head, the diaphragm and motor are damaged.
•  This pump must not be run from 12V; the supply must not exceed 6V. For 12V systems choose the 12V mini air pump.
•  In an aquarium, place the pump above the water level. Fit a check valve on the tubing so that water does not flow back to the pump when the power is cut.
•  Do not run it for a long time with the outlet fully blocked; the motor heats up and its life shortens.
•  The life value is for intermittent operation; it can be shorter in continuous operation.

Package contents:

•  1 Piece 6V Mini Air Pump
•  Note: Air tubing, air stone, check valve, battery holder, adapter and connection cable are not included in the package.