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Trim-to-size Paddle Type Switches for ‘flow/no Flow’ Detection for Piping Systems 1¼" and Up

FSW-21 and FSW-22

Trim-to-size Paddle Type Switches for ‘flow/no Flow’ Detection for Piping Systems 1¼

£231.00 FSW-22

CE RoHS
  • Easy to Install
  • Switch Acts Bi-directionally
  • Minimum Flow Restriction
  • Less Than 3 psig Pressure Drop
  • Low Cost
  • Reed Relay for Long Life
Variable Area Flowmeters, Rotameters & Switches - View related products

Description

FSW-20 series paddle-type switches easily install into pipes ranging in size from 1¼" on up using an ordinary pipe tee or threaded weld coupling. The paddle pivots to move out of the liquid’s path with increasing flow, thereby activating the switch. The paddle is easily cut for field installation for desired flow setting. Models FSW-21 and FSW-22 feature high pressure (2000 psig max.) and high temperature (to 150°C (300°F)) ratings for rugged installations.

SPECIFICATIONS:
Materials:
   Housing: Brass, FSW-21; 316 SS: FSW-22
   Paddle: 302 SS
   Other Wetted: PTFE, ceramic
Body Length: 86 mm (3.4")
Paddle Length: 140 mm (5.5")
Paddle Width: 25 mm (1")
Operating Temperature: -34.4°C to 148.9°C (-30°F to 300°F)
Max Pressure: 2000 psig
Pressure Drop: 3 psig
Repeatability: ±5%
Set Point Accuracy: ±25%
NOTE: 22 mm (0.9") max. height boss from Pipe or Tee O.D. for full paddle swing
Switch: SPDT, 20 VA
Lead Wires: 18 AWG, 0.6 m (2') long, Polymeric
Max Viscosity: 200 SSU or 43 centistokes

Paddle
Length
Pipe Line Sizes
1-1/4" 1-1/2" 2" 2-1/2" 3" 4"
Approx Actuation/Deactuation Flow Rates (GPM water)
Act. De-Act Act. De-Act Act. De-Act Act. De-Act Act. De-Act Act. De-Act
1-1/4" 5 3 13 8 22 15 29 22        
1-1/2"     15 11 28 21 38 30        
2"         22 15 27 20 48 38    
2-1/2"             21 14 40 26 52 39
3"                 31 20 45 32
4"                     39 25
Place Order(Specify Model Number)

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/Desc.
Availability
Price
Description
Qty
RoHS
Click to expand/minimize a list of what others bought with theFSW-21
FSW-21
Star
Availability: 5 weeks  
£151.00   
Flowswitch w/Brass 302SS PTFE, Ceramic -30°F to 300°F 2000 PSIG SPDT, 20VA. For pipes larger than 1 1/4".
RoHS compliant
  
FSW-22
Star
Availability: 9 weeks  
£231.00   
Flowswitch w/ 316SS 302SS PTFE, Ceramic -30°F to 300°F, 2000 PSIG SPDT, 20VA. For pipes larger than 1 1/4".
RoHS compliant
All amounts shown in EUR, GBP, or USD
Note: Comes complete with operator's manual.


Ordering Example: (1) FSW-21 Flowswitch, Brass Housing and 302SS Paddle with PTFE and Ceramic wetted parts, £151.00