adjustable vacuum air and water pressure switch
1. Product Name: adjustable vacuum air and water pressure switch for high temperature boiler steam cleaner and coffee machine
2.Electrical parameters: 16 (4) A 250VAC T125 16A 25A 250VAC
3. Applicable medium: steam, air, water, liquid, engine oil, lubricating oil, etc
4.The highest pressure: positive pressure: 1.5MPA; Negative pressure: -101kpa
5. Working temperature: -35℃~160℃ (no frosting)
6. Interface size: conventional G1/8, according to customer requirements
7.Control mode: open and close mode
8. Product material: copper base + plastic shell, or copper base + aluminum shell
9. Mechanical life: 300,000 times
10.Electrical life: 6A 250VAC 100,000 times; 0~16A 250VAC 50,000 times; 16~25A 250VAC 10,000 times
| Positive pressure range （bar） | |
| Pressure division | Pressure error range |
| 0.1~0.8bar | 0.1±0.05bar |
| 0.5~2.0bar | 0.2±0.1bar |
| 1.0~3.0bar | |
| 1.5~4.0bar | 0.3±0.1bar |
| 2.0~5.0bar | |
| 3.0~7.0bar | 0.5±0.2bar |
| 4.0~10bar | 1.0±0.2bar |
| Vacuum negative pressure range | |
| Pressure division | Pressure error range |
| -1kpa~-5kpa | 1±0.2kpa |
| -6kpa~-20kpa | 2±0.5kpa |
| -21kpa~-50kpa | 10±5kpa |
| -40kpa~-70kpa | 20±5kpa |
| -50kpa~-100kpa | 30±5kpa |
When the access pressure source reaches the working pressure, the switch is normally open and the power supply is off. When the access pressure is less than the working pressure, it is normally closed and the power supply is connected to realize electrical control.
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