□ Overview 

 FK-B float level switch is a simple and practical level measurement instruments, mainly used in industrial processes to open or pressure vessel liquid level control. When the liquid level in the high limit or low limit, an alarm signal or switching control pumps and valves closed. As part of the complete electrical switches and the dielectric isolation, security and better and longer life. And small size, more suitable for the pipeline or used within a narrow space. 

 □ The main technical parameters 

 No. 
 Content 
 FK-B1 
 FK-B2 

 1 
 Working pressure 
 3.0MPa 


 2 
 Operating temperature 
 -20 ~ +120 ℃ 


 3 
 Medium Density 
 ≥ 0.5 g / cm 3 


 4 
 Medium viscosity 
 0.3Pa · S 


 5 
 Switch Type 
 Reed Switch 


 6 
 Contact capacity 
 DC24V 0.5A12W 


 7 
 Cable outlet 
 M20 × 1.5 (in) 

 8 
 Action mode 
 Upper or lower 

 9 
 Over the length of the container 
 150mm less 

 10 
 Protection in the form 
 IP54 

 11 
 Proof in the form 
 d Ⅱ BT4 

 12 
 Connection 
 Threaded ZG 3 / 4 " 

 JB/T81-94 flat flange flange 

 Or JB/T82.2-94 convex flange 

 PN2.5 DN40 






 □ Work 

 FK-B side of the float level switch from the container through the flange (or thread) installed together with the container, the float rises or falls with the level of the fulcrum around which the upper and lower swing. When the level up or down to the alarm point, the float rod end of the magnet terminals driven by magnetic coupling inside the reed switch is closed or off, an alarm