AD30 (30-50LPM) Long Life 20L/min 30LPM Flow Small Diaphragm Vacuum Pump 12v Dc

1. Vacuum extraction (Evacuation)
Used to evacuate spaces such as sample chambers, reactors, sensor chambers, gas flow paths, etc.
Provide a stable and controllable negative pressure environment for various experiments.
Applied to: vacuum drying ovens, vacuum filters, gas sensor chambers, analyzers, etc.

2. Sample pretreatment
● In chromatographic (such as GC, GC-MS), spectral analysis (such as FTIR), mass spectrometry (such as MS) and other equipment, vacuum pumps are used to remove impurity gases, water vapor or remove excess carrier gas.
● Typical examples:
Vacuum degassing
Vacuum concentration
Vacuum pretreatment of solid samples (such as drying)

3. Filtration and filtration
● Used with Buchner funnels, filters, etc., small vacuum pumps can accelerate the filtration process and are suitable for micro or medium volume liquid filtration.
● Commonly used in microbiological, biochemical experiments, and environmental water sample analysis.

4. Gas sampling and transportation
● Vacuum pumps can be used to extract air or specific gas samples from the environment or reaction system into analytical equipment.
● Applications: gas detectors, gas chromatography, CEMS, air quality analysis, etc.

5. Pressure control / micro-positive pressure output
● Some small pumps have bidirectional capabilities (with exhaust ports) and can be used to provide micro-positive pressure gas flow or maintain a stable low vacuum pressure for instrument flow control.
● Applications: mass spectrometry injection, constant flow gas supply system, etc.

6. Components of the control and drive system
● In automated experimental equipment, small vacuum pumps are often embedded as internal modules to achieve certain specific mechanical actions (such as adsorption capture, liquid transfer).
● Applied to: automatic sample injectors, liquid handling robots, biochemical analyzers, etc.