+61 2 9669 4000
Unit 19, 77 Bourke Road, Alexandria, NSW 2015 AUSTRALIA

Mid-West Instrument Model 115 “Cryogenic” Differential Pressure Gauge

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Mid-West Instrument Model 115 ''Cryogenic''
Differential Pressure Gauge - Bellows Type

Common Applications:

  • Pressurized Tank Level Monitoring
  • Stationary Tanks- Horizontal or Vertical
  • Tanker Transport
  • Cryogenic/Liquefied Gas Applications

Proof Pressure:

  • Two times working pressure at ambient temperature

Product Features:

  • Drop in replacement for Barton and Prime Measurements
  • Over-Range Protection, High over Low and Low over High
  • Micro adjust pointer
  • DP Ranges from 0-70″ H2O to 0-800″ H2O
  • Tamper Proof, All adjustments require removal of bezel for access.
  • Snap acting micro switch for alarm (optional)
  • In house Oxygen Cleaning (optional)
  • Private labeling (optional)
  • Black ink on white dial or White ink on back dial

Product Features/Benefits:

  • “Engineered Plastic” gauge front and optional stainless steel body bolts provide superior corrosion resistance in “over-the-road” trailers, outdoor or salt air environments
  • Dry gauge design with no internal liquid fill
  • Eliminates costly clean up from liquid fill leaking and fouling the tank and system
  • No gauge damage/accuracy loss caused by liquid fill expansion/contraction when
  • exposed to temperature shocks in cryogenic applications
  • Up to a 30lb. (14 kg) weight savings on liquid Helium and Hydrogen
  • Allows more products to be transported in mobile trailers
  • Easier and less labor to panel mount
  • Adaptable to a wide variety of mounting configurations
  • Ability to create custom dials for horizontal and vertical tanks
  • Warranty: One Year

Static Pressure:

  • 500 PSIG and 1000 PSIG Static Pressure

Temperature Limits:

  • -40ºF (-40ºC) to 200ºF (93ºC)


Model 115 Series Gauges either conform to and/or are designed to the requirements of the following standards;

  • ASME B1.20.1
  • ASME B40.100
  • NEMA Std. No. 250
  • UL Std. No. 50
  • CSA-C22.2 No. 14
  • SAE J514


  • Accuracy: ±1% of Full Scale
  • DP Range: 0-10″ H2O to 0-69.9″ H2O (25 mbar to 175 mbar)
  • Safe Working Pressure: 1500 PSIG
  • Body Material: Brass
  • Internals: 316 S.S. Welded Multiple Diaphragm
  • Port: Dual Top and Bottom, 1/4″ FNPT connections with optional snubbers
  • Vilton® Standard, other elastomers available
  • 6″ Black Dial with White Lettering (White Dial with Black Lettering)
  • Switch Options only available in ranges starting at 80″ H2O

[wpfilebase tag=fileurl id=88 linktext=’Click here to download the Model 115/116 Catalogue’ /]
[wpfilebase tag=fileurl id=161 linktext=’Click here to download the Model 116 Installation Instructions’ /]
[wpfilebase tag=fileurl id=140 linktext=’Click here to download the Model 116 Installation Instructions – Switch’ /]

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