Liquid Flow Switch MODEL: SF-3-A-1-A, SF-4-A-1-A, SF-3-1, SF-3-2, SF-3-3, SF-3-4, SF-3-5 Seojin Instech

Product Name Liquid Flow Switch

Model SF Series

Series Level Switch

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1451

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TYPE & MODEL	Liquid Flow Switch
PRINCIPLE	A reactive force is induced in the paddle in proportion to the rate of flow in the pipe, and the reaction in turn generates a proportional resistance in the control spring. Thus a variable force balance is maintained between the flow and the control spring until the flow exceeds a set flow rate. When the flow reaches the set point, the Reaction Plate activates the micro-switch to make or break the contacts.
RANGE	TEMPERATURE	PRESSURE
Standard PT 3/4" : 1" PT 1" : 3" Optional : 6"	Standard : -10℃∼80℃ Optional : -10℃∼100℃	Max. 10㎏/㎠
FEATURES	OUTPUT	APPLICATION
Small size of this instrument makes it easy to install in the field On/Off action of the switch is very definite, owing to the paddle style flow sensor. This device has an extremely long life expectancy since the movement of the paddle is transmitted to the switch through a flexible bellow. (Fatigue limit of the bellows is greater than 100,000 times.) Unitized construction of this model reduced the parts count, and made it simpler to assemble, thus a more reliable long-term working is expected. "Using an ABS case" led to a more attractive design and also made it highly corrosion resistant.	1 SPDT Contact capacity : 10A 250 VAC	Flowing tubes Coolant pump, motor
INDUSTRY	Building/Factory Automation, Industrial Plant, Petrochemistry, Environmental Water Treatment

MODEL: SF-3-A-1-A, SF-4-A-1-A, SF-3-1, SF-3-2, SF-3-3, SF-3-4, SF-3-5

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