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The 3D Helical Bourdon Tube

The heart of the 3D Pressure Gauge is the Helically wound Inconel X-750 Bourdon Tube. Inconel was chosen because of its excellent resistance to corrosion and its elasticity. There are two types of helical Bourdon tubes: one is specifically designed for higher pressures and the other is designed for lower pressures. Each pressure range dictates subtle differences in Bourdon tube design and manufacturing method.

To the user the benefits of this painstaking high technology process are longer field life with inherent accuracy and span. As an assembly in the 3D Test or Process gauge our coil provides lower cost of ownership and easier field use, simply because the gauges do not fail or require recalibration.

3D Vs. Liquid Filled Gauges In Many Severe Applications

In many severe applications C-shape pressure gauge cases are filled with silicone liquid to dampen their movements and increase service life. Beside adding cost to the gauge, the liquid fill causes other problems. These are associated with loss of liquid fill, discoloration, and added maintenance difficulties.

In most instances a standard 3D TLG "Tough Little Gauge" can replace an old fashioned liquid filled gauge. Beside being less expensive, the 3D gauge will provide longer service life and much less field complications for your instrument personnel. Even against liquid fill, 3D gauges can last as much as ten times longer in severe services with pulsation or vibration. This has a dramatic effect on your cost of ownership. After all, 3D gauges are designed to work, and work for a long time no matter what the application.

Features

  • Helically Wound Bourdon Tube in Inconel X-750
  • All Wetted Parts in 316SS or Iconel
  • Precision Anti-Friction Sapphire Shaft Bearings
  • High Impact Resistance Cycolac Case
  • Needle Edged Pointer
  • Human Engineered Dial
  • Adjustable Zero Set-Point
  • One Moving Part
User Benefits

  • No Recalibration Required
  • Longer Field Service Life
  • Greater Reading Accuracy
  • Maintenance Free
  • Safer Operation (UL Listed)
  • Corrosion Resistant
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