WFS51 Series
Principle、structure
Piston、inline、mechanical flow switch for liquid or gaseous media, with spring-supported piston and magnetic triggering of a reed switch. Rugged design in plastic、Aluminum or stainless steel.

Features:
Low pressure loss/good repeatability/dirt resistant/hermetic separation of electrical and hydraulic components/ applicable to little discharge/switch setting scale, user does not need setting in scene/LED display status/ /double output for optional

Application:
gaseous /liquid
It is widely used in industrial automation/mechanical equipment/ compressed air industry/ refrigeration and air conditioning.

Technical parameters:
Setting range: see Technical Data
Tolerance:±5% of full scale
Hysteresis：depend on switch, Min.0.5L/Min
Switch value:Obtained(media: water/Temp.: 20/horizontal installation.) The mounting position、media and temperature may influence switch value.
LED:DC with LED, AC no LED
Wire connection:locking plug M12
Output:reed switch, 24VDC/250VAC, 100mA
Pressure:50bar (aluminum) /100bar (stainless steel、nickel-plated brass)
Average pressure loss:0.3bar (obtained when 25L/min)
Media temperature:Max.–90
Protection class:IP65 (IP67 can be custom-made)
WFS51…BA material: housing: brass nickel plated
piston: POM plastic
spring: stainless steel
seal: NBR
WFS51…LA material: housing: Anodized Alumina
piston: POM plastic
spring: stainless steel
seal: NBR
WFS51…PA material: housing: POM plastic
piston: POM plastic
spring: stainless steel
seal: NBR
WFS51…SA material: housing: stainless steel
piston: POM plastic
spring: stainless steel
seal: NBR