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Stream ABB VT4 Vortex Steam Flowmeter


Stream ABB VT4 Vortex Steam Flowmeter

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With an inbuilt temperature sensor and steam tables, the ST/VT (Vortex) and ST/ST (Swirl) range of flowmeters provide a direct measurement of steam massflow. Utilising the latest Digital Signal Processing this range offers the ultimate in reliability and value for money. Supplied with either senor or remote mounted transmitter the unit provides a clear LCD display of Rate and Total with both Pulse and 4-20mA outputs as standard.
  • Direct measurement of steam mass
  • Inbuilt Temperature Sensor & Steam Tables
  • Steam Temperature option to 400°C
  • EExd & Intrinsically Safe Options
  • Minimal straight pipe lengths (Swirl)
  • Range of output communications
To ensure optimum performance of the Vortex flowmeter a straight inlet section with a length of 15D (pipe-diameters) and an outlet section of 5D long is required.
 
 
Steam Flowmeter Diagram
 
 

ST/VT & ST Range

Flowrate example for Saturated Steam @ 8BarA, T=170°C, Density 4.16kg/m3 

Meter Size

mm

 

ST/VT Vortex

Flow Range

(kg/h)

ST/ST Swirl

Flow Range

(kg/h)

15

11 – 100

6 - 67

25

33 – 624

21 - 208

40

67 – 1622

41.9 - 873

50

89 – 2080

75 - 1456

80

223 – 4992

166 - 3536

100

335 – 7904

270 - 6240

150

899 – 18720

499 - 15392

200

1505 – 33280

832 - 20800

250

2363 – 58240

N/A

300

3345 – 83200

1664 - 41600

400

N/A

4160 - 83200

 

Accuracy

Repeatability

 

 

+/- 1% of rate

+/- 0.2% of rate

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