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Flow Switches

FSW300 Series   
1 year warranty CE
 
Flow Switches
FSW300 Series:Flow Switches
Click for larger image.
   
$215.00  FSW301
Adjustable Switch Point
Low Pressure Drop
Economical
Field Installation for ½ to 8" Pipes
Instant Response
High Repeatability

View related products - Variable Area Flowmeters, Rotameters & Switches

Click to scroll below to order See Specs PDF Manuals View a printer friendly page

The FSW301 flow switch comprises a paddle system with a permanent magnet attached. Above that magnet is a reed contact, located outside the flow of fluid. A second magnet with opposing poles creates the force necessary to reset the switch back to the no flow position.

When the monitored flow pushes the paddle and changes the position of the magnet in relation to the reed contact it activates the contact. As soon as the flow is interrupted, the paddle moves back to its starting position, which returns the reed contact to the initial position. The force necessary to push the magnet back is provided by the two magnets repelling each other. Using magnetic force instead of the usual leaf spring means the switch is considerably more stable in the long term and much less sensitive to pressure peaks.

The reed contact used as a sensing element consists of two ferromagnetic contact blades located in a glass bulb filled with inert gas. This practically eliminates wear resulting from contact burning. This construction allows a useful life of up to 100,000,000 switching cycles.

COMMON SPECIFICATIONS
Maximum Switching Current: 1 A
Maximum Switching Voltage: 230 Vac, 48 Vdc
Maximum Rating: 26 VA, 20 W
Set Point Tolerance: ±15%
Plug Connector: DIN 43650 form A/ISO 4400 cable socket with terminal screws, suitable for outer cable diameter 4.57 to 6.85 mm (0.18 to 0.27")
Dimensions (Excluding Paddle or Tee): 114 x 38 x 89 mm (4.5 x 1.5 x 3.5")

FSW301
Maximum Pressure: 25.165 bar (365 psi)
Maximum Process Temp: 110°C (230°F)
Maximum Ambient Temp: 80°C (176°F)
Protection Class: IP65
Connection: ½-14 NPT
Materials of Construction:
Body: Brass
Paddle System: Polypropylene, Noryl®
Shaft: Stainless steel

FSW302, 303, 304
Maximum Pressure: 25 bar (362 psi)
Maximum Process Temperature: 110°C (230°F)
Maximum Ambient Temperature: 80°C (176°F)
Materials of Construction:
Body: Brass
Pipe Section: Brass
Paddle System: Brass

FSW305, 306, 307
Maximum Pressure: 10 bar (145 psi)
Maximum Process Temperature: 60°C (140°F)
Maximum Ambient Temperature: 60°C (140°F)
Materials of Construction:
Pipe Section: PVC
Body: Polypropylene, Noryl®
Paddle System: Polypropylene, Noryl®


To Order (Specify Model Number)    
expand list What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.
 Part Number   Availability   Price   Description    Qty.
 Insertion Style Switches
    FSW301 7 Weeks   $215.00    Flow switch, insertion ½ male NPT, setpoint adjustable from 4.0 to 132 GPM  
 Brass Tee Switches
    FSW302 In Stock   $240.00    Flow switch inline 1/2" brass tee, 0.9 to 1.1 GPM setpoint range  
    FSW303 In Stock   $240.00    Flow switch, inline 3/4" brass tee, 1.8 to 2.4 GPM setpoint range  
    FSW304 In Stock   $240.00    Flow switch inline 1" brass tee, 3.5 to 4.4 GPM setpoint range  
 PVC Tee Switches
    FSW305 In Stock   $152.00    Flow switch, inline 1/2" PVC tee, 1.3 to 1.8 GPM setpoint range  
    FSW306 In Stock   $152.00    Flow switch, inline 3/4" PVC tee, 2.5 to 3.2 GPM setpoint range  
    FSW307 In Stock   $152.00    Flow switch, inline 1" PVC tee, 2.8 to 3.9 GPM setpoint range  
Click to expand/minimize a list of what others bought with the 70A-2  70A-2 In Stock   $24.00    Fast pulse tone audible alarm  
All dollar amounts on this site are shown in US currency.

 Note: Comes complete with operatorís manual.


 Ordering Example: (1) FSW301 insertion style flow switch with 1/2 NPT fitting, $215.00,  plus (1) 70A-2 fast pulse tone audible alarm, $24.00, $215.00 + 24.00 = $239.00

   
Keywords:Flow Switches, auto ranging digital multimeter humidity detectors humidity loggers moisture sensor

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