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3KD Series

The 3KD series is an extremely compact, robust and versatile double headed gas diaphragm pump. Highest quality con-rod and motor bearings ensure lowest power consumption and, combined with slow speed, maximum operational life. This series additionally offers a unique detachable motor construction allowing contaminated heads to be ecconomically exchanged.

This series is offered with a quality brushed and versatile brushless motor.

› Flow rate to 18.0 l/min
› Robust / long life
› Single and Quad versions available.

Single and Quad versions are available in the 3K and 3KQ series as well as liquid version with the 3K, 3MD and 3MQ series.

Fixing brackets are included as standard.

Flow control is available in combination with PWM Flow Controller.

Return to Miniature Diaphragm Pumps for Air and Gas range.


Brushed Motor

Quality brushed motor available in 12 and 24 V.

Available to purchase online via BOX-it (see order information below).

Technical Data

Parallel Connection:
Free Flow 18.0 l/min
Max Pressure 2.0 bar
Max Vacuum -800 mbar
Power Consumption 8.5 to 22.0 W
Series Connection (Vacuum only):
Free Flow 11.0 l/min
Max Vacuum -900 mbar
Power Consumption 8.5 to 10 W
Voltage Options 12 / 24 V DC
Max Ambient Operating Temperature 50 °C
Max Media Temperature 100 °C
Elastomers Options EPDM / Nitrile
Other Wetted Parts PPS (polyphenylene sulphide)
Weight 435 g

 

 

 

Order Information

Part Number:     3112.129     12 V DC / EPDM       ⇒ BOX-it
Part Number:     3112.254     24 V DC / EPDM       ⇒ BOX-it


Brushless Motor    

Brushless DC motor in 24 V DC with integrated driver.

Long life combined with elegant speed (flow) control via a 0 to 5V DC input, rpm feedback
output and a 5 V DC output is for convenient speed control via external potentiometer.

Available to purchase online via BOX-it (see order information below).

Technical Data

Parallel Connection:
Free Flow 15.0 l/min
Max Pressure 2.0 bar
Max Vacuum -700 mbar
Power Consumption 8.5 to 22.0 W
Series Connection (Vacuum Only):
Free Flow 10.0 l/min
Max Vacuum -900 mbar
Power Consumption 8.5 to 10.0 W
Voltage Options 24 V DC
Motor Inputs / Outputs (further details in Motor Information below)
Speed Input 0 to 5 V (0 to 4000 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 5V 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 3 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.

 

Order Information

Part Number:     3112.610       24 V BLDC / EPDM    ⇒ BOX-it

All data is representative for initial selection purposes. It is the responsibility of the user to determine suitability for the intended use.

Boxer Pumps
Boxer GmbH · For gas & liquids · 20 Belsize Avenue · London NW3 4AU
Phone: +44 (0)20 7794 4080 · Fax: +44 (0)20 7431 1426 · mail@boxerpumps.com · boxerpumps.com