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修剪至一定尺寸的桨叶式开关,适用于1¼"及以上管道系统的“有/无流动”检测

FSW-21 and FSW-22

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

查看下面所有型号

1年保修 CE
  • Discontinued, replaced by FSW-25.

  • Easy to Install
  • Switch Acts Bi-directionally
  • Minimum Flow Restriction
  • Less Than 3 psig Pressure Drop
  • Low Cost
  • Reed Relay for Long Life
变截面流量计, 转子流量计和开关 - 查看相关产品

产品描述

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
订购 所有价格均为人民币税前价格,不包括13%增值税和运费!(指定型号)
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产品编号产品描述
数量
产品描述
Quick Ship
FSW-21
咨询  
货期: 
 
 
Flowswitch w/Brass 302SS PTFE, Ceramic -30°F to 300°F 2000 PSIG SPDT, 20VA. For pipes larger than 1 1/4".
Quick Ship
FSW-22
咨询  
货期: 
 
 
Flowswitch w/ 316SS 302SS PTFE, Ceramic -30°F to 300°F, 2000 PSIG SPDT, 20VA. For pipes larger than 1 1/4".
所有金额以RMB显示
注: Comes complete with operator's manual.


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