Flow switch is an automatic element that protects and controls flow in the tube where are used in liquid pipes, which can be used on water treatment system, central air conditioning, water cooling unit and other fields. Applicable to gas or liquid that is not corrosive to brass. Features: Flow value controller is adjustable, stable performance. Easy to wire and safe to use. Made of high quality material brass, durable to use. Perfect for water treatment system, central air conditioning, water cooling unit and other fields. Compatible with gas or liquid that is not corrosive to brass. Specification: Material: Brass Voltage: AC250V Type(channel position): direct-acting type Connection method: NPT Thread Application: water treatment system, central air conditioning, water cooling unit and other fields. Applicable substance: gas or liquid that is not corrosive to brass and copper. Shell protection grade: IP54 Output: micro switch SPDT output Contact life: 100,000 times Using substance temperature range: 1-100 Working substance: air, water and oil Micro switch current: max. 15A Micro switch voltage: 250V AC/DC Undertaking pressure: max. 10bar Weight: 428g Note: It can not be used in the pipe which temperature drops below freezing point. Package Included: 1 x Water Flow Switch 5 x Paddle