Bourdon tube pressure gauge, copper alloy, Model 111.31


  • For equipment and plants for welding, cutting and allied processes
  • Application for oxygen and acetylene
  • Increased safety requirements


Special features

  • Safety pressure gauge with solid baffle wall
  • Reliable and cost-effective
  • Nominal size 50
  • Scale ranges up to 0 ... 400 bar


ISO 5171

Nominal size in mm

Accuracy class

Scale range
0 ... 2.5 to 0 ... 400 bar
or all other equivalent vacuum or combined pressure and vacuum ranges

Pressure limitation
Steady: 3/4 x full scale value
Fluctuating: 2/3 x full scale value
Short time: Full scale value

Permissible temperature
Ambient: -20 ... +60 °C
Medium: +60 °C maximum

Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C):
max. ±0.4 %/10 K of the span


Principle Pressure gauge
Process Connection thread G ", thread NPT
Nominal diameter
House PP-H
meetelement Koper
uitgang Visueel
Scale range 0..400 bar
Manometer diameter 50 mm
aansluitpositie onder (6 uur)
glycerine glycerine
Brand Wika
Hygienic Non hygienic
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