KP26-L Compact Diaphragm Liquid Pump
The Kamoer KP26-L is a compact diaphragm liquid pump designed for stable liquid transfer in OEM equipment. Its brushless DC motor, self-priming capability, adjustable speed control, and high-pressure output make it suitable for ink transfer, cleaning-liquid delivery, and other compact fluidic systems.
Key Features
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Reference flow rate of ≥300 mL/min
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Self-priming with a suction lift of ≥3 m
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Available with ≥30 m or ≥50 m maximum head
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Compact design weighing approximately 55 g
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Brushless DC motor
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PWM and 0–5 V speed control
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FG speed feedback
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Low power consumption of ≤3 W
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Reference noise level of ≤60 dB
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Designed to tolerate dry-running operation
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EPDM and FKM/PTFE fluid-contact configurations
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6 V and 12 V options; 24 V available as a custom configuration
Typical Applications
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Ink transfer in inkjet and coding equipment
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Cleaning-liquid transfer in medical instruments
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Liquid circulation and delivery
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Compact OEM fluidic systems
Technical Specifications
| Parameter |
Specification |
| Pump type |
Diaphragm liquid pump |
| Reference flow rate |
≥300 mL/min |
| Suction lift |
≥3 m |
| Maximum head |
≥30 m at 6 V; ≥50 m at 12 V |
| Rated voltage |
6 V / 12 V |
| Custom voltage |
24 V |
| Power |
≤3 W |
| Motor type |
Brushless DC motor |
| Control |
On/off, PWM or 0–5 V speed control |
| Speed feedback |
FG, 1 pulse per revolution |
| Weight |
Approx. 55 g |
| Reference noise |
≤60 dB |
| Operating temperature |
0–45°C |
| Relative humidity |
<80%, non-condensing |
Material Configurations
KP26-L300-E
KP26-L300-V
The E configuration provides good mechanical durability for general applications. The V configuration offers improved chemical resistance but should still be verified using the actual liquid.
Motor Control
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PWM frequency: 10–30 kHz
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PWM amplitude: 5 V
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Motor stopped: 0%–10% duty cycle
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Speed-control range: 11%–100% duty cycle
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Analog input: 0–5 V
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Analog stop range: 0–0.5 V
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Analog speed-control range: 0.6–4.5 V
Reference performance was measured using water at 25°C, standard atmospheric pressure, and no load pressure. Actual flow, pressure, noise, and service life depend on the liquid properties, voltage, operating environment, system resistance, and duty cycle.
Chemical compatibility should be confirmed before selection. For liquids containing particles, an inlet filter is recommended to protect internal components and extend pump service life.
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