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Trim to size Paddle Flow Switch

FSW301

Paddle flow switch | FSW301

Paddle flow switch

146,00 FSW301-G

CE
  • Trim the paddle to suit pipe sizes from 20 to 200 mm
  • Low Pressure Drop
  • Economical
  • Instant Response
  • High Repeatability
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Descripción

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 ferro-magnetic 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.


Specifications and Dimensions
Maximum Pressure: 25 bar
Maximum Process Temperature: 110°C
Maximum Ambient Temperature: 80°C
Protection Class: IP65
Process Connection: ½" BSPP Male
Maximum Switching Current: 1 A
Maximum Switching Voltage: 230 Vac, 48 Vdc
Maximum Switching Capacity: 26 VA, 20 W
Set Point Tolerance: ±15%
Plug Connector: DIN 43650 socket.
Materials of Construction:
Body: Brass
Paddle System: Polypropylene, Noryl
Shaft: Stainless steel
FSW301 Dimensions
Pipe Size
mm
Paddle Trim Setpoints (Horiz. Pipe. Water 20°C) Max.
Flow Rate
lpm (m³/h)
Paddle
Mark
Insertion
Length (L3) mm
Increasing Flow
lpm (m³/h)
Decreasing Flow
lpm (m³/h)
20* 9 40 18.3 (1.1) 15 (0.9) 66 (4)
25* 15 46 21.7 (1.3) 18.3 (1.1) 83 (5)
32* 20 51 31.7 (1.9) 26.7 (1.6) 133 (8)
40* 30 61 35 (2.1) 30 (1.8) 166 (10)
50* 40 71 45 (2.7) 40 (2.4) 233 (14)
80* 60 91 85 (5.1) 78.3 (4.7) 500 (30)
100** 80 111 106.7 (6.4) 96.7 (5.8) 666 (40)
150** 80 111 258.3 (15.5) 236.7 (14.2) 1666 (100)
200** 80 111 500 (30) 483.3 (29) 3000 (180)
* Requires Installation into 'T' Fitting to EN 10242
** Requires Installation into ½" BSPP Socket, Length 15mm to EN 10241
Insertion into vertical pipes possible, set points on request


Realizar Pedido(Especifique el número de modelo)
Número de pieza/Desc.
Cant.
Descripción
FSW301-G Star
146,00
Stock: 3 semanas
 
Flow switch insertion. 1/2" BSPP male
Todos los precios se muestran en EUR
Notas: Comes with operator's manual.
Ordering Example: (1) FSW301-G Insertion style flow switch, €146,00