1. Definition 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 QBF-30 Vacuum Pump:



1). Features:
    (1). Compact size
    (2). Steady air outputs with low noise
    (3). Very low vibration
    (4). Low power consumption
    (5). Mini pump series use unique linear motion design that has capability of over 18,000 hours of continuous maintenance-free operation
    (6). Compact, very quiet, highly reliable and inexpensive
2). Applications:
    (1). generating system
    (2). Medical appliance
    (3). Gas sampling