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- BOXER 22KD Miniature Diaphragm Pump Series
22KD Series
The 22KD series is a double headed miniature diaphragm pump designed for a wide range of applications including gas sampling, gas detection and monitoring. This pump series is of certain interest for applications requiring flow above 2 l/min in a compact envelope. Additionally, when run at lower speeds with a flow of 1 l/min and below, sound and vibration is reduced to levels which cannot be matched with a single headed pump.
Like all other pumps in the Boxer range, this series of miniature diaphragm pump can be customised to specific requirements. Diaphragms are available not only in different materials but also different thicknesses and profiles depending on the exact needs of the application. Likewise eccentrics from 0.5 to 0.85 mm can be configured.
This series is available with either iron core or BLDC motors.
› Flow rate to 2.6 l/min
› Low sound and vibration
› BLDC motor option with speed input for ultimate flow control
› Compact and versatile
› Antivibration mounting foot available
Flow control is available in combination with PWM Flow Controller.
Return to Miniature Diaphragm Pumps for Air and Gas range.

Iron Core Motor - e
Economic motor option available in 3.0 and 4.5 V with 0.85 and 0.6 mm eccenter.
Technical Data
0.85 mm Eccenter | |
Free Flow | 2.4 l/min |
Max Pressure | 200 mbar |
Max Vacuum | -200 mbar |
Power Consumption | 0.7 to 1.6 W |
0.6 mm Eccenter | |
Free Flow | 2.2 l/min |
Max Pressure | 450 mbar |
Max Vacuum | -450 mbar |
Power Consumption | 0.5 to 1.6 W |
General Data | |
Voltage Options | 3.0 / 4.5 V DC |
Motor Termination | Solder tags (no preferred rotational direction) |
Operating Temperature Range | 5 to +60 °C |
Operating Humidity Range | 5 to 95% RH |
Elastomers Options | EPDM, Silicone |
Other Wetted Parts | PPS (Polyphenylene Sulphide) |
Tube Connection | Barb for ∅ 4.0 mm tubing |
Weight | 32g |

BLDC Motor
Ultimate life and flow control available in 24 V DC with 0.85 and 0.6 mm eccenter.
With speed control input this BLDC motor maintains torque at low speed. This is a far more efficient method of flow control compared with reducing the supply voltage.
Technical Data
0.85 mm Eccenter | |
Free Flow | 2.6 l/min |
Max Pressure | 400 mbar |
Max Vacuum | -400 mbar |
Power Consumption | 2.0 to 3.0 W |
0.6 mm Eccenter | |
Free Flow | 2.3 l/min |
Max Pressure | 450 mbar |
Max Vacuum | -450 mbar |
Power Consumption | 2.0 to to 3.0 W |
General Data | |
Voltage Options | 24 V DC |
Motor Termination | 45cm leads terminated with connector for BLDC Driver |
Operating Temperature Range | 5 to +60 °C |
Operating Humidity Range | 5 to 95% RH |
Elastomers Options | EPDM, Silicone |
Other Wetted Parts | PPS (Polyphenylene Sulphide) |
Tube Connection | Barb for ∅ 4.0 mm tubing |
Weight | 32g |

Order Information
Part Number: 22602.002 24 V DC / EPDM 0.85 mm eccenter
Part Number: 22602.001 24 V DC / EPDM 0.6 mm eccenter
All data is representative for initial selection purposes. It is the responsibility of the user to determine suitability for the intended use.