1. Definiton of vacuum pump:
A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum.

2. Specification of AP-9901S Oil Free Vacuum Pump:



1). Oil free vacuum pump
2). Compact, easy to use
3). Vacuum pressure: 80kPa
4). Maximum pressure: 18psi
5). Flux: 12,000mL/min
6). Power: 80VA
7). Voltage: 220V AC/50Hz, 110V/60Hz
8). Dimension: 210 x 150 x 120mm
9). Net weight: 3.5kg