This miniature diaphragm pump is based on a DC motor that drives a connecting rod to oscillate an elastic membrane, resulting in pumping action. During the downward stroke, the diaphragm draws the medium in via the inlet valve while pushing the medium out via the outlet valve. The diaphragm hermetically seals the compressible chamber during the pumping process. This pump model ASP-BLDC1800 features high pumping flow rate of 1800 mL/min and high pressure (0.5MPa). Both DC brush or brushless motor options are available. Minimum order quantity (MOQ) is 5 units.

Key Features

Low vibration
Long service life (>=6000 hours for brushless DC motor; >=1000 hours for brush DC motor)
Voltage： 12/24VDC
Pump control: PWM or analog 0-5VDC
Low noise and pulsation (<60db)
Pump materials: pump head (PPS), pump body (PPS), diaphragm (EPDM) and valve (EPDM)
100% Oil-free. No contamination
Maximum flow rate of 1800 mL/min
Maximum pressure: 50 m of Water
Tubing connection ID 8mm
105mm (L) x 54 mm(D) x 35 mm(H)
RoHS and CE available
PWM control board (optional)
PU Tubing (optional)

Typical Applications

Liquid dispensing
Gas analysis
Blood pressure monitoring
Ozone generators and analyzers
Liquid level sensing
Agriculture irrigation
Medical therapy robotics

Pump Parameters	APS-BLDC1800 (Brushless)	ASP-BDC1800 (Brush)
Flow Rate	1800 mL/min *	1800 mL/min *
Pressure Head	50 m	50 m
Power	<=20 W	<=20 W
Noise Level	<= 35dB	<= 35 dB
Pump Control	PWM	Fixed speed
Pump Weight	350 g	480 g
Voltage	12/24VDC	12/24VDC
Pump Life	>=6000 Hours	>=1000 Hours
Working Environment	0-50 °C , RH: <=80%	0-50 °C , RH: <=80%