Models 232.30 4.5, 233.30 4.5

Bourdon tube pressure gauge

Stainless Steel Case Process Gauge, Solid Front Design

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  • With liquid-filled case for applications with high dynamic pressure pulsations or vibration
  • Suitable for corrosive environments and gaseous or liquid media that will not obstruct the pressure system
  • Process industry: chemical/petrochemical, power stations, mining, on and offshore, environmental technology, mechanical engineering and plant construction
  • Meets API RP 551 requirements for pressure measurement

Special Features

  • Solid-front stainless steel case
  • Excellent load-cycle stability and shock resistance
  • All stainless steel construction


ASME B40.100

4½” (115 mm)

Accuracy class
± 0.5% of span (ASME B40.100 Grade 2A)

Vacuum / Compound to 200 psi (16 bar)
Pressure from 0/15 (1 bar) to 0/15,000 psi (1,000 bar)
or other equivalent units of pressure or vacuum

Working pressure
Steady: full-scale value
Fluctuating: 0.9x full-scale value
Short time: 1.3x 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: +392°F (+200°C) maximum - dry
+212°F (+100°C) maximum - liquid-filled

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 / IP65)

Pressure connection
Material: 316L stainless steel
Lower mount (LM)
¼" NPT or ½” NPT limited to wrench flat area

Bourdon tube
Material: 316 stainless steel
>1,500 PSI (100 bar): C-shape,
≤1,500 PSI (100 bar): Helical

Stainless steel

White aluminum with black lettering and stop pin at 6 o'clock

Black aluminum, adjustable

Bourdon tube pressure gauge
  • Bourdon tube pressure gauge
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