Technical Specifications

Reference Model	7122
Product Type	Dual-head mini diaphragm liquid pump
Flow Rate	1.2 L/min under atmospheric pressure
Pump Body Material	PP
Diaphragm Material	EPDM
Port Size	4 mm ID silicone tubing
Pressure Range	Output ≥200 kPa; suction ≤ -80 kPa in liquid state (specific parameters under different conditions please refer to the Keyto specification)
Rated Power	15 W
Rated Voltage	24 V DC
Applicable Medium	Water, weak acid and weak base solutions, etc.
Life Span	>800 h with DC motor
Safety Current	N/A
Rated Current	0.8 A

Miniature Diaphragm Pump · Dual-Head 7122 Series

7122 Dual-Head Mini Diaphragm Liquid Pump

The Keyto 7122 is a dual-head mini diaphragm liquid pump designed for stable aspiration and dispensing in precision fluid control systems.

With 1.2 L/min flow, 24 V DC operation, PP pump body, EPDM diaphragm, and dual-head structure, it supports compact liquid transfer applications that require steadier flow performance.

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Why Choose the 7122 Miniature Diaphragm Pump?

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

Dual-Head Pumping Structure

Dual-head design supports steadier liquid aspiration and dispensing in compact equipment.

Higher Liquid Flow

1.2 L/min flow rate is suitable for systems that require faster liquid transfer than single-head models.

Stable Pressure Capability

Output pressure ≥200 kPa and suction ≤ -80 kPa help support controlled liquid movement.

Compact System Integration

4 mm ID tubing, 24 V DC operation, and compact construction support OEM system installation.

Clean Liquid Transfer

Diaphragm pumping supports clean transfer without direct oil contamination in the flow path.

Suitable for Multiple Instruments

Designed for medical, environmental, laboratory, and industrial fluid control applications.

Typical Applications

Liquid aspiration and dispensing modules
Medical device fluid control
Environmental protection equipment
Laboratory instruments
Chemical machinery and industrial equipment
Compact OEM liquid handling systems

Material and Medium Compatibility

PP pump body for compact liquid handling structures
EPDM diaphragm for water and weak acid/base solutions
4 mm ID silicone tubing for fluidic connection
Suitable for water, weak acid, and weak base solutions under validated conditions
For special liquids, confirm compatibility and service life before final selection

Model Selection Notes

Choose the 7122 when your system requires higher liquid flow and steadier transfer from a dual-head structure. If lower flow and longer BLDC life are more important, compare it with the 7121-3 or 7121-6.

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Frequently Asked Questions

What is the 7122 dual-head mini diaphragm pump used for?

The 7122 is used for liquid aspiration, dispensing, and transfer in medical devices, environmental equipment, laboratory instruments, and OEM fluid control systems.

What is the flow rate of the 7122 pump?

The 7122 provides a nominal flow rate of 1.2 L/min under atmospheric pressure.

What voltage does the 7122 support?

The 7122 uses 24 V DC operation.

What materials are used in the wetted parts?

The standard configuration uses a PP pump body and EPDM diaphragm. Material compatibility should be confirmed based on the actual medium.

When should I choose 7122 instead of 7121-6?

Choose 7122 when higher liquid flow and dual-head pumping are needed. Choose 7121-6 when compact gas/liquid transfer and longer BLDC life are more important.

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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