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Perma-Cal Pneumo and Test Pressure Gauges

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For gauges not listed in the pull down menu, please reference the Amron International 2011 Catalog - Page 84 or the Perma-Cal Part Builder Document located in the Attachments tab.


  • Inconel X-750 helically wound sensing element that has no mechanical moving parts
  • Withstands a 50% overpressure without going out of calibration
  • Outstanding for vibration, pulsation and shock environments
  • Internally dampened to reduce pointer flutter during vibration
  • Flange models available in six colors for color coding of ranges or test panels
  • Rugged and safe ABS high impact plastic case with solid front - blow out back - the safest design
  • Very small internal volume, a safety feature in case of misapplication or catastrophic failure
  • Internal, replaceable 316 SS filter snubber
  • Standard 316 SS stems and fittings


  • Proof Pressure without Calibration Shift: 150% of Full Scale pressure
  • Burst Pressure: 5x Working Pressure
  • Accuracy Grade:
    • 3A: ± .25% full scale (includes NIST Cert)
    • Grade 2A: ± .5% full scale or ± .5% Midscale/± 1% full scale
  • Wetted Parts: Inconel, Stainless Steel and Silver Braze
  • Calibration: Vertical position standard
  • Media Temperature:
    • -65° to +250°F with ABS case
    • -65° to +600°F with Aluminum case
  • Ambient Temperature:
    • -65° to +190°F with ABS case
    • -65° to +400°F with Aluminum case

The advantage of Perma-Cal® direct drive over conventional C-tube gauges is simple; there is only one moving part. No gears, linkages or springs to wear or break. Perma-Cal® gauges maintain their structural integrity and accurate calibration in the most demanding environments even during prolonged and rugged use. Perma-Cal® direct drive pressure gauges provide the lowest cost of ownership by giving the best value in durability, reliability and accuracy.


Additional Information

Brand Perma-Cal
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  • Do Perma-Cal gauges conform to any standard and do they come with any certs?

    Yes, Perma-Cal gauges conform to ASME B40.1 and come with a calibration cert traceable to NIST. 

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