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FS series flow switch is an automation element that provides cut off flow protection and control flow in pipes, it applies to these medium, such as water, ethylene glycol, or other not corrosive to phosphor bronze or brass and not classified as hazardous liquids.Working principle: when flow rate exceeds setting point, fluid promotes blade, through flow switch internal mechanical device driving the top of the micro switch, its SPDT switch contact can conduct a circuit and cut off another a circuit. This flow switch is usually used in where requires chain reactions or disconnection protection. It can adjust the quantity of blade and trim blade length, in order to adapt different tube diameter and flow speed demand.
Line pipe size | 1 | 1-1/4 | 1-1/2 | 2 | 2-1/2 | 3 | 4 | 5 | 6 | 8 | |
Min. flow | Flow increase | 0.95 | 1.32 | 1.70 | 3.11 | 4.09 | 6.24 | 8.40 | 12.90 | 16.80 | 46.60 |
Flow increase | 0.57 | 0.84 | 1.14 | 2.16 | 2.84 | 4.32 | 6.10 | 9.30 | 12.30 | 38.60 | |
Max. flow | Flow increase | 2.00 | 3.02 | 4.36 | 6.59 | 7.84 | 12.00 | 18.40 | 26.80 | 32.70 | 94.20 |
Flow decrease | 1.93 | 2.84 | 4.09 | 6.13 | 7.3 | 11.4 | 17.3 | 25.2 | 30.7 | 90.8 | |
