Models 212.54, 213.54

Bourdon Tube Pressure Gauge

Stainless Steel Case

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  • Intended for adverse service conditions where pulsating or vibration exists
  • Process industry
  • Suitable for gaseous or liquid media that will not obstruct the pressure system

Product features

  • Vibration and shock resistant (with liquid filling)
  • Stainless steel case with removable bayonet ring
  • Pressure ranges up to 15,000 psi (1,000 bar)


ASME B40.100 & EN 837-1

2½” & 4” (63 & 100 mm)

Accuracy class
2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1% of span (ASME B40.100 Grade 1A)

Vacuum / Compound up to 200 psi (16 bar)
Pressure from 15 psi (1 bar) up to 15,000 psi (1,600 bar)
or other equivalent units of pressure or vacuum

Working pressure
2½”: Steady: 3/4 scale value
        Fluctuating: 2/3 full scale value
        Short time: full scale value

4”: Steady: full scale value
     Fluctuating: 0.9 x full scale value
     Short time: 1.3 x full scale value

Operating temperature
Ambient: -40°F to +140°F (-40°C to +60°C) - dry
               -4°F to +140°F (-20°C to +60°C) - glycerine filled
               -40°F to +140°F (-40°C to +60°C) - silicone filled
Medium: +140°F (+60°C) maximum

Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F (10°K) rising or falling.

Weather protection
Weather tight (NEMA 4X / IP 66)

Pressure connection
Material: copper alloy
Lower mount (LM) or center back mount (CBM) - 2½”
Lower mount (LM) or lower back mount (LBM) - 4”
1/4” NPT or 1/2” NPT limited to wrench flat area

Bourdon tube
2½” (63 mm) ≤ 870 psi (60 bar): C-shape copper alloy
2½” (63 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) > 6,000PSI (400 bar) : Helical stainless steel
4" (100 mm) ≤ 1,000 psi (70 bar): C-shape copper alloy
4" (100 mm) > 1,000 psi (70 bar): Helical stainless steel

Copper alloy

White aluminum with black lettering; 2½” size with stop pin

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