Product Overview

This brushless DC air pump, the JSG31GEB, uses a compact diaphragm design for OEM pressure, vacuum, gas sampling, aspiration, and fluid-transfer applications.

The pump is available in 12 V and 24 V versions. It supports continuous operation, PWM speed control, FG speed feedback, IP30 protection, and EMC protection.

Its PPS pump head, EPDM diaphragm, and EPDM valves can be evaluated for air, compatible gases, and water.

Why Choose the JSG31GEB Brushless DC Air Pump?

1. Brushless DC Motor

The brushless motor supports stable control, continuous operation, and low-maintenance OEM applications.

2. PWM Speed Control

PWM control allows the equipment controller to adjust pump speed for different operating stages.

3. FG Speed Feedback

The FG signal allows the equipment to monitor pump operation and create suitable fault-detection logic.

4. PPS and EPDM Media Path

The PPS pump head and EPDM diaphragm and valves can be evaluated for air, compatible gases, and water.

5. OEM Integration Support

CE and RoHS compliance, EMC protection, and application support help OEM customers move from sample testing to production.

What Are the Key Specifications of This Brushless DC Air Pump?

Specification	JSG31GEB
Pump type	Brushless DC diaphragm pump
Rated voltage	12 V DC / 24 V DC
Maximum air flow	16 L/min
Maximum pressure	310 kPa
Maximum vacuum	-91 kPa
Noise	62 dB
Motor type	Brushless DC motor
Speed control	PWM
Speed feedback	FG
Protection rating	IP30
Working mode	Continuous operation
Ambient temperature	-10 to 40°C
Media temperature	-10 to 40°C
Pump head material	PPS
Diaphragm material	EPDM
Valve material	EPDM
Candidate media	Air, compatible gases, and water
Compliance	CE and RoHS

Which Media Fit the JSG31GEB Brushless DC Air Pump?

The JSG31GEB uses a PPS pump head with an EPDM diaphragm and EPDM valves.

These materials can be evaluated for:

Clean air
Compatible non-aggressive gases
Humid gas
Water
Applications with occasional moisture

Material compatibility must be checked against the exact medium composition, concentration, temperature, moisture level, and cleaning process.

Where Can the JSG31GEB Brushless DC Air Pump Be Used?

1. Laboratory and Analytical Instruments

The JSG31GEB supports gas sampling, aspiration, filtration, evacuation, sample transfer, and purge cycles when validated with the complete system.

2. Emissions Measurement and Gas Sampling

The pump supports sample-gas extraction and controlled purging, with an upstream liquid trap recommended for humid gas.

3. Medical and Portable Equipment

The compact 12 V and 24 V options support airflow, suction, pressure, and fluid-transfer modules in medical and portable equipment, subject to OEM approval.

How Should Buyers Select a Brushless DC Air Pump?

1. Define the Real Working Point
Specify the required flow at the corresponding pressure or vacuum because maximum flow, pressure, and vacuum are separate endpoints rather than one simultaneous operating point.

2. Reproduce the Complete System Resistance
Test the pump with the intended tubing, filters, valves, chambers, vessels, fittings, sample probes, and liquid traps because these components may reduce the available flow.

3. Select the Correct Voltage
Choose the 12 V or 24 V version according to the equipment power supply, and verify the voltage at the pump terminals during startup and normal operation.

4. Confirm the Medium
Provide the gas composition, humidity, water quality, liquid content, and operating temperature so the PPS and EPDM materials can be checked for compatibility.

5. Confirm the Operating Cycle
Define whether the pump will operate continuously or intermittently, including its startup frequency, operating duration, enclosure temperature, and expected load.

Application Case: Portable Emissions Analyzer

A portable emissions analyzer required a compact 24 V pump to draw sample gas through a probe, filter, and tubing network.

The same pump also needed to perform a controlled purge cycle between measurements. The OEM required adjustable pump speed and an operating feedback signal for system monitoring.

Project Challenges

Filter resistance increased during operation, while humid sample gas created a condensate risk. The pump also had to fit inside a compact enclosure while maintaining controlled vibration, low equipment noise, adjustable speed, and operating feedback.

JSG31GEB Integration

The 24 V JSG31GEB was integrated with PWM speed control, FG feedback, an upstream filter, a condensate trap, flexible tubing support, and vibration-isolating mounts. The OEM then validated working-point airflow, vacuum response, startup, speed control, feedback, temperature, noise, condensate protection, and purge timing in the complete system.

Result

After complete-equipment validation, the pump supported repeatable sample collection and purge sequences with less manual adjustment.

PWM control allowed the OEM to use different pump speeds for sampling and purging. FG feedback supported pump-status monitoring and system fault detection.