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working principle
1.When the controlled medium does not flow,the micro switch contact 1 is connected with the contact 2 to make the green indicator light indicate.
2. When the controlled medium flow changes, the target is moved and the micro switch is switched to the contact point 1 and the contact 3 through the lever, so that the red indicator light is indicated to achieve the pull control.
Basic parameters
| Serial No | Set range | Handoff difference | 1/min Repetitive error | Pipe diameter | Target No | Weight | |
| in | mm | ||||||
| 1 | 20-46 | 5 | 1.1 | 1 | 23 | 1 | 0.5 |
| 2 | 30-100 | 6 | 2.6 | 11/4 | 32 | 1 | |
| 3 | 65-160 | 8 | 6.4 | 11/4 | 40 | 1 | |
| 4 | 120-280 | 15 | 4 | 2 | 50 | 1 | |
| 5 | 40-140 | 10 | 2 | 50 | 2 | ||
| 6 | 210-550 | 18 | 21/2 | 70 | 1 | ||
| 7 | 110-340 | 15 | 21/2 | 70 | 2 | ||
| 8 | 380-750 | 20 | 3 | 80 | 1 | ||
| 9 | 180-470 | 18 | 3 | 80 | 2 | ||
| 10 | 115-220 | 20 | 3 | 80 | 3 | ||
| 11 | 350-920 | 20 | 4 | 100 | 2 | ||
| 12 | 210-590 | 20 | 4 | 100 | 3 | ||
| 13 | 380-1200 | 40 | 5 | 125 | 3 | ||
| 14 | 550-1800 | 80 | 6 | 150 | 3 | ||
Note；
1、Serial number 6-14 is the reference specification.
2、The maximum medium pressure in the system cannot exceed the maximum allowble pressure.
3、The switching value is the upper switching value.
