FLOW-SWITCH
Flow-Switch
Tansa Flow Switches are designed for pipelines varying from 25 NB to 150 NB. By changing paddle the switch becomes suitable for required pipelines. It is available in various materials that make it suitable for most of the corrosive and toxic fluids. The design is simple and robust which makes installation very easy and increases life.
From 25nb To 150nb
For 15nb To 25nb
MATERIAL OF CONSTRUCTION
Flow Switch
Model Flow Switch TN.TH
Threaded Mounting		 TN.FL
Flanged Mounting		 TN.PD
Pad Mounting
Part Name
Body
 Brass

 SS316 Brass
Bellow Ph. Bronze SS316  
Paddle   SS316  
Range Spring   SS304  
Cover   METAL - Powder Coated  
Gasket   NITRILE  

SPECIFICATIONS :
  Line size 25NB to 150NB
  Range 25 to 470 LPM
  Connection 1" BSPM / 1.5" - 2" flanged / pad
  Test Pressure 150 psig / 10 kg / cm2
  Max temp 100-170 deg. cen
  Pr. Loss 60-80 mmwc
  Mounting horizontal / vertical
  Switching snap action SPDT micro switch-15A-230VAC
  Dead zone 5-10 % of Max flow
  Enclosure Metallic - Powder Coated
  Elec. Conn M 16 pvc Cable Gland
Download .pdf
SWITCH ACUTATION CHART
Switch action Units Pipe Size NB
25 32 40 50 65 80 100 125 150

Low Flow
Adjustment
( Factory Set )

 Flow Rising LPS 0.42 0.53 0.83 1.17 1.50 1.83 2.50 3.67 5
LPM 25 32 50 70 90 110 150 220 300
LPH 1500 1920 3000 4200 5400 6600 9000 13200 18000
GPM 6.60 8.45 13.21 18.49 23.68 29.06 39.63 58.12 79.26
Flow Falling LPS 0.25 0.33 0.50 0.66 0.83 0.83 1.33 1.83 2.50
LPM 15 20 30 40 50 50 80 110 150
LPH 900 1200 1800 2400 3000 3000 4800 6600 9000
GPM 3.96 5.28 7.93 10.57 13.21 13.21 21.14 29.06 39.63

High Flow
Adjustment

 Flow Rising LPS 0.66 1.08 1.58 2.00 2.67 3.33 4.67 7.17 10.50
LPM 40 65 95 120 160 200 280 430 630
LPH 2400 3900 5700 7200 9600 12000 16800 25800 37800
GPM 10.57 17.17 25.10 31.70 42.27 52.84 73.98 113.60 166.45
Flow Falling LPS 0.58 0.92 1.33 1.50 2.33 3.00 4.00 5.83 7.83
LPM 35 55 80 90 140 180 240 350 470
LPH 2100 3300 4800 5400 8400 10800 14000 21000 28200
GPM 9.25 14.53 21.14 23.68 36.99 47.56 63.41 92.47 124.17
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