Models 222.30, 223.30

Bourdon tube pressure gauge

For highest pressure applications up to 7,000 bar, safety version

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  • Increased safety requirements
  • With liquid-filled case for applications with high dynamic pressure loads or vibrations 1)
  • For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive ambience
  • Process industry: Chemical, petrochemical, power plants, mining, on- and offshore, environmental technology, machine building and general plant construction

Special features

  • Safety pressure gauge with solid baffle wall designed in compliance with operational safety requirements of EN 837-1
  • Excellent load-cycle stability and shock resistance
  • All stainless steel construction, socket, pressure element and end piece of Bourdon tube welded
  • Scale ranges 0 … 2,500 to 0 ... 7,000 bar


Nominal size in mm

Accuracy class

Scale ranges
0 ... 2,500 bar
0 ... 4,000 bar
0 ... 6,000 bar
0 ... 7,000 bar

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

Permissible temperature
Ambient: -40 ... +60 °C without liquid filling
-20 ... +60 °C with glycerine filling 1)

Medium: +200 °C maximum without liquid filling
+100 °C maximum with liquid filling 1)

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

Ingress protection
IP65 per IEC/EN 60529

1) Model 223.30

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