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- BOXER 3K Liquid Diaphragm Pump Series
3K Series
The 3K series is a robust and versatile single headed liquid diaphragm pump. Highest quality con-rod and motor bearings ensure lowest power consumption and, combined with slow speed, maximum operational life.
The 3K series is offered with 2 different motors: quality DC and brushless DC.
› Flow rate to 1.5 l/min
› Robust / long life
› Slow running
› Dual and Quad versions available.
Double and Quad versions are available in the 3MD and 3MQ series as well as gas versions with 3K, 3KD and 3KQ.
A fixing bracket is included as standard.
Flow control is available in combination with PWM Flow Controller.
Return to Miniature Diaphragm Pumps for Liquid range.
Quality brushed motor available in 12 and 24 V.
Technical Data
| Free Flow | 1.5 l/min |
| Max Pressure | 2.0 bar |
| Max Vacuum | -800 mbar |
| Free Flow (gas / dry) | 1.9 l/m |
| Max suction Height (dry) | 4 m H2O |
| Voltage Options | 12 / 24 V DC |
| Power Consumption | 3.3 to 14.0 W |
| Max Ambient Operating Temperature | 50 °C |
| Max Media Temperature | 100 °C |
| Elastomers Options | EPDM, Silicon |
| Other Wetted Parts | PPS (polyphenylene sulphide) |
| Weight | 385g |
Technical Data
| Free Flow | 1.5 l/min |
| Max Pressure | 2.0 bar |
| Max Vacuum | -800 mbar |
| Free Flow (gas / dry) | 1.9 l/min |
| Max Suction Height (dry) | 4 m H2O |
| Voltage Options | 24 V DC |
| Power Consumption | 4.8 to 14.5 W |
| Motor Inputs / Outputs (further details in Motor Information below) | |
| Speed Input | 0 to 2 V (0 to 1600 rpm) |
| Frequency Output | 1 pulse per revolution |
| Voltage Reference Output | 5 V DC (for speed control via external potentiometer) |
| Lead Length | 40 cm (exit position not defined) |
| Max Ambient Operating Temperature | 50 °C |
| Max Media Temperature | 100 °C |
| Elastomers Options | EPDM / Nitrile |
| Other Wetted Parts | PPS (polyphenylene sulphide) |
| Weight | 385 g |
Motor Information
This motor is supplied with 5 wires:
Red + 24 V DC Supply
Black GND
Green 0 to 2.0 V DC (or PWM, min. 15kHz signal) Speed Control
White +5 V DC Output for use with 10 kΩ potentiometer and GND wire
Yellow Frequency Ouput, 1 pulse per revolution with 50% on-time
Speed control is availabe with 2 options (see diagram on right).
The white wire (5V DC Output) is supplied with the lead end insulated. Damage will occur to the driver electronics if this wire is connected to +24 V or GND.
All data is representative for initial selection purposes. It is the responsibility of the user to determine suitability for the intended use.