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Mechanical Pressure Elements - Bourdon Tube
- Spiral And Helical Type |
Spiral (Low
Pressure 0-10 psig & High Pressure 0-10000 psig) Helical (Low
Pressure 0–200 psig & High Pressure 0-6000 psig)
Spiral and
Helical Bourdon Tubes Spiral and helical Bourdon tubes (figs.A and B )
are made from tubing with a flattened cross. Both were designed to
provide more travel of the tube tip, primarily for moving the recording
pen of pressure recorders.
Figure A Figure B
Advantages
And Disadvantages - Much longer than C-Tube and is coiled into a
spiral and helix respectively, More costly to manufacture Occupies less
space for given amount of movement, Multiple turns allow thicker
material for a given sensitivity, less chance to damage,
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