Classification of pressure sources

1. According to the pressure transmission medium, it can be divided into: gas pressure source, liquid pressure source
2. According to the pressure range, it can be divided into: micro pressure source, vacuum pressure source, low pressure source, high pressure source
3. It can be divided into: portable pressure source, tabletop pressure source, servo pressure source according to the way of use on site
4. According to the degree of intelligence, it can be divided into: digital intelligent pressure source, ordinary pressure source