Introduction

The FW58 series of flow switches are used for visual and electricalchecking of various liquids. Unique streamline structure, accurateand stable design, widely apply to monitor the flow of liquids inpipes and cooling and lubrication system in all kinds of large,medium, minimum devices, such as electric generating unit, electricmotor unit, rolling mills, compressors, transfer system and so on.The instrument will output a control signal when the pre-setswitching points are exceeded. In addition, they can be installedin any position, which makes installation much easier. Therefore,it can be widely applied to monitor industrial flow in a variety ofindustries, such as oil field and petroleum refining industry,chemical and ethylene plants, pharmaceutical and metallurgicalindustries, power plant and paper mill, food products and winefactories, light industry and textile industry, industrial weldingand water disposal industries, etc.

 
Operationprinciple

By adopting conical measuring tube and measuring target, at thetime of flowing through along tapered tube, the measuring targetwill be correspondingly displaced along with flow. The displacementof measuring target produces balance under the function of springequilibrant, then by means of indicating system to be transferredfrom magnetic coupling system, finally realizing flow monitoringand controlling .