Different Pressure Controller
Different Pressure Controller

| Symbol | Model | Low pressure | High pressure | Reset | pressure | ||||
| Adjust range | Differential | Adjust range | Differential | L.P. | H.P. | L.P. | H.P. | ||
| Low pressure (L.P.) | P2 | 0~0.2 | 0.04~0.1 | Aut | 1.7 | ||||
| P3 | -0.05~0.3 | 0.05~0.2 | Aut | 1.7 | |||||
| P6M | -0.05~0.6 | fixed≤0.2 | Aut | 1.7 | |||||
| P6M | -0.05~1.6 | 0.1~0.4 | Aut | 1.7 | |||||
| P10 | 0.1~1.0 | 0.1~0.3 | Aut | 1.7 | |||||
| P6W-12S | 0.~0.02 | 0.04~0.1 | Aut | 1.7 | |||||
| P6W12D | 0.05~0.2 | ≤0.04 | Aut | 1.7 | |||||
| P760 | 0~-0.1 | ||||||||
| High pressure (H.P.) | P12D | 0.2~1.2 | 0.1~0.4 | Aut | 3.3 | ||||
| P16D | 0.3~1.7 | 0.2~0.5 | Aut | 3.3 | |||||
| P20D | 0.4~2.0 | 0.2~0.5 | Aut | 3.3 | |||||
| P30D | 0.5~3.0 | 0.5~1.0 | Aut | 3.3 | |||||
| P30D | 1.0~3.0 | Fixed≤0.4 | Aut | 3.3 | |||||
| P30M | 1.0~3.0 | Fixed≤0.4 | Aut | 3.3 | |||||
| P45L | 1.0~4.5 | Fixed≤0.6 | Aut | 4.8 | |||||
| P45DL | 1.0~4.5 | 0.5~1.5 | Aut | 4.8 | |||||
| Dual pressure | P830 | -0.05~0.6 | 0.1~0.4 | 1.0~3.0 | Fixed≤0.4 | Aut | Aut | 1.7 | 3.3 |
| P830HM | -0.05~0.6 | 0.1~0.4 | 1.0~3.0 | Fixed≤0.4 | Aut | Aut | 1.7 | 3.3 | |
| P830HLM | -0.05~0.6 | fixed≤0.4 | 1.0~3.0 | Fixed≤0.4 | Aut | Aut | 1.7 | 3.3 | |
| P1245L | 0.2~1.2 | 0.1~0.4 | 1.0~4.5 | Fixed≤0.6 | Aut | Aut | 2.5 | 4.8 | |
| P1245LHM | 0.2~1.2 | 0.1~0.4 | 1.0~4.5 | Fixed≤0.6 | Aut | Aut | 2.5 | 4.8 | |
| P1245LHLM | 0.2~1.2 | Fixed≤0.2 | 1.0~4.5 | Fixed≤0.6 | Aut | Aut | 2.5 | 4.8 | |
1)air pressure controller can protect compressors in refrigeration and air-condition plant, and keep them from over-low pressure or over-high suction pressure.
2) air pressure switch can start and stop refrigeration compressors and fans of air condensers.
3) air pressure switch can be used not only in fluoride refrigeration, but also in air and liquid.
4) air pressure switch are fitted with a single pole double throw (SPDT) changeover switch. The position of the switch is determined by the pressure control setting and the pressure at the connector
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