111.31 WIKA bourdon tube welding pressure gauge


Šifra: MAN-111.31

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Delivery time: approximately 2-3 weeks

  • Design: ISO 5171
  • denomination size 50
  • Scale range up to 0… 400 bar
  • reliable and cost-effective
  • safety pressure gauge with solid barrier wall



111.31 WIKA Welding Pressure Gauge with Bourdon tube is used for pressure measurement of gaseous and liquid media.

The mechanical model 111.31 Bourdon pressure gauge shall consist of a die-cast zinc housing with a solid partition (Solidfront) and a blow-off device at the rear.

Model 111.31 meets the requirements of the international industry standard ISO 5171 for Bourdon tube manometers.

Common measurement sites are found in the mechanical engineering, plant construction and building services industries.

The cases are available in a nominal size of 50 mm. With an accuracy class of 2.5, this pressure gauge is suitable for the process industry.

The modular design allows for a multitude of combinations of process connections, nominal sizes and scales of scope. This high variance allows universal use of the instrument in the industrial sector.

For mounting on control panels, pressure gauges can be equipped with a mounting flange or with a triangular plate and mounting bracket.


Features 111.31

  • Design: ISO 5171
  • Nominal size in mm: 50
  • accuracy class: 2.5
  • the scale range:
    • 0 … 2.5 to 0 … 400 bar
    • or any other equivalent pressure and vacuum ranges
  • pressure limitation:
    • Uniform: 3/4 x the value of the full scale
    • Niha: 2/3 x the value of the full scale
    • Short time: full value
  • permissible temperature
    • Ambient: – 20 °C … +60 °C
    • Medium: maximum +60 °C
  • Temperature effect: when the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ± 0.4 % / 10 K range

Standard version:

  • process link:
    • copper alloy
    • Lower beam (LM)
    • 1/4 NPT (male), 14 mm flats
  • pressure element:
    • Copper alloy
    • Type C or spiral type
  • movement: copper alloy
  • dial:
    • plastic, white,
    • with stop pin, black letters
  • pointer: plastic, black
  • Housing: die-cast zinc with solid partition (Solidfront) and rear blow-out device
  • Window: Polycarbonate


Areas of use, applications

  • use for oxygen and acetylene
  • increased security requirements
  • for equipment and appliances for welding, cutting and related processes


To view additional options and more technical features, we recommend viewing the attached pdfs. documents under the Documentation section.

ELPRO designation: MAN-111.31