Technical Specifications

Reference Model	7121-6
Product Type	Brushed mini diaphragm pump
Flow Rate	600 mL/min at atmospheric pressure
Pump Head Material	PP
Diaphragm Material	EPDM or FKM
Hose Connector	4 mm inner diameter silicone hose
Pressure Range	Output pressure ≥200 kPa; negative pressure ≤ -80 kPa in liquid medium
Rated Power	7 W
Rated Voltage	12 V DC or 24 V DC
Applicable Medium	Water, weak acid, weak base, etc.
Service Life	3,000 h with brush motor
Safety Protection Current	N/A
Rated Current	12 V: ≤0.5 A; 24 V: ≤0.25 A

Miniature Diaphragm Pump · Brushed 7121 Series

7121-6 Brushed Mini Diaphragm Pump for Higher Flow Transfer

The Keyto 7121-6 brushed mini diaphragm pump is designed for compact gas/liquid transfer applications that require higher flow with a brush motor configuration.

It provides 600 mL/min flow, output pressure ≥200 kPa, negative pressure ≤ -80 kPa, 12 V/24 V options, PP pump head, EPDM/FKM diaphragm choices, and 3,000-hour brush motor service life.

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Why Choose the with-brush-7121-6 Miniature Diaphragm Pump?

This model is built for equipment designers who need compact size, stable fluid control, material compatibility, and reliable OEM integration.

Higher Flow Brushed Configuration

600 mL/min flow supports faster gas/liquid transfer than the brushed 7121-3 model.

Compact Pumping Structure

Mini diaphragm design supports installation in space-limited equipment.

Pressure and Suction Capability

Output pressure ≥200 kPa and negative pressure ≤ -80 kPa support stable transfer in compact systems.

Material Options

PP pump head with EPDM or FKM diaphragm options supports different media compatibility needs.

12 V / 24 V Integration

Voltage options simplify integration into different OEM control systems.

Cost-Effective Motor Choice

Brush motor configuration is suitable when 3,000-hour service life meets project requirements.

Typical Applications

Compact high-flow liquid transfer
Medical device fluid handling
Laboratory equipment
Environmental monitoring systems
Cleaning and waste discharge modules
OEM systems requiring brushed motor configuration

Material and Medium Compatibility

PP pump head for compact fluidic integration
EPDM or FKM diaphragm options for different fluids
4 mm inner diameter silicone hose connection
Suitable for water, weak acid, and weak base solutions under validated conditions
Confirm compatibility for special media, cleaning agents, and duty cycle requirements

Model Selection Notes

Choose the brushed 7121-6 when your system requires 600 mL/min flow with brush motor configuration. Choose the BLDC 7121-6 for longer service life and PWM control options.

miniature diaphragm pumps BLDC 7121-6 micro diaphragm pump brushed 7121-3 mini diaphragm pump 7521-3 high pressure diaphragm pump

Frequently Asked Questions

What is the brushed 7121-6 pump used for?

It is used for compact gas/liquid transfer, cleaning, waste discharge, mixing, and suction in OEM instruments that require higher flow.

What is the flow rate of the brushed 7121-6?

The brushed 7121-6 provides 600 mL/min flow at atmospheric pressure.

What is the service life of the brush motor version?

The brush motor version supports 3,000 hours of service life under specified conditions.

What voltage options are available?

The brushed 7121-6 supports 12 V DC and 24 V DC options.

How is the brushed 7121-6 different from the BLDC 7121-6?

The brushed version uses a brush motor with 3,000-hour service life, while the BLDC version supports up to 10,000 hours and optional PWM control.

Need help selecting a miniature diaphragm pump?

Share your flow rate, pressure, medium, voltage, tubing, duty cycle, and installation requirements. Keyto can help evaluate a suitable pump configuration for your system.

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