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Liquid Pump
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Rolling pump (Liquid)
Rolling pump (Liquid)
This rotary pump features a central symmetry design with three working units per duty cycle, delivering a compact size with a high flow rate. Its polypropylene body and EPDM diaphragm provide strong corrosion resistance and high oxidizability, making it suitable for various media. Driven by a brushless motor, it ensures long life and maintenance-free operation with low noise and minimal vibration. Its robust construction supports high output pressure for demanding fluid applications.
Key Parameters:
Voltage
Material option
Motor type
Reference Model:
7421-3
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Rolling pump (Liquid)
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Rolling Pump (Gas)
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Overview
Parameters
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Pump Type 7421-3 Rolling Pump(Liquid)
FLow Rate at atm. Pressure 300ml/min
Pump Head Material PP
Diaphragm Material EPDM
Hose Connector 3.2mm inner Diameter Silicon Hose
Pressure Range

Output Pressure≥120KPa，Negative suction≤-50KPa

（Please refer to the datasheet under different conditions）
Rated Power <3W
Rated Voltage（DC） 12V or 24V
Applicable Medium Water, Weak acid, Weak base, etc.
Service Life 1500H（Brushless Motor, can choose speed adjustable version）
Rated Current 12V: 0.24A，24V: 0.12A
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