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Water flow switch principle and application

  Water flow switch, is used in electric water heater, solar water heater, air conditioner, and other water system of heating water cycle control, in and out of the water control, water control, water pump switch control, electromagnetic valve on-off control or water power, water power control process, when reaching a certain traffic converts water to switch electrical signal sensor. By core flow switch, reset spring, wrought brass, stainless steel, PP/PVC or poly carbon shell and sensors. For stainless steel shell and H58 wrought brass or carbon manufacturing, core USES ndfeb permanent magnet material, magnetic sensor switch power device is imported. Inlet and outlet ends interface is commonly G1/2 "of standard pipe thread. Other 3/4, 1/2, 1/8 caliber optional.

  Working principle: when the pipeline flow, the flow is greater than the set in the core under the effect of water displacement and driving magnetic source produce magnetic control function make the sensor output "1" switch signal, the signal input to the equipment control system, the power expansion enlarged with the purpose of flow control. When the water flow is less than set in the pipeline flow, magnetic core in a reset spring thrust under the action of driving magnetic source return, the sensor output "0" switch signal, stop system work.

  Water flow switch has the advantages of high sensitivity, strong durability. Main technical parameters of the appearance of size: can be customized! Appropriate environmental temperature: 1 ℃ or more appropriate working temperature 100 ℃ or less minimum start-up flow acuity 0.2 L/min maximum flow through 10 L/min or less rated working pressure of 0.65 Mpa or less shell maximum pressure of 5 Mpa or less signal output load DC24V / 1 A, 1 A or AC220V/AC36V / 0.1 A adapt to the scope and conditions: (1) the environment temperature is not lower than 0 ℃. Do not knock shell. Stay away from the magnetic objects. (2) signal is the output of the switch quantity, so the connecting way of control object must also be switch control. (3) the control object of power load capacity shall not be greater than the signal. (4) control device, this device is a water control cannot be used in other media.

  Flow sensor is composed of magnetic core, reset spring, shell and sensors. When liquid through sensor driving core movement, causing switch action. Sensor shell material can choose different material, magnetic control switch for imported parts. Flow sensor used in electric water heater, solar water heater, air conditioner, and other series of water control, water in and out of the water heating control, water control, water pump switch control, electromagnetic valve on-off control or power and electricity water control, etc.

  Water flow switch has the switch output, excellent performance, high precision, reliable and can be installed in the pipe and the copper, stainless steel corrosion hinge, sex in the liquid, when decide the liquid flow rate, adjustable fixed up a circuit switch, another open loop, typical applications Yu Liansuo effect, or stop protection. Water flow switch is only used in water level 1 ° c above the liquid medium (not frozen), it can also be in high salt or chlorine liquid, but not the inflammable medium.

  Flow switch can be installed outdoors, but need to pay attention to: fish, filtering impurities. Can be horizontal or vertical installation in the pipeline, on both sides need to keep 5 times the pipe diameter pipe flow.

  Water flow switch is used only for control and operation workers equipment failure caused by the error, installation personnel necessary to increase the safety limit control, alarm, film and television system, to prevent the occurrence of control failure. Note: the flow switch can't water hammer, such as in the downstream of the flow switch is equipped with quick closing valve, throttle up the device must be used.