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Mid-West Instrument Model 116 “Cryogenic” Differential Pressure Gauge

Mid-West Instrument Model 116 Differential Pressure Gauge

Designed for high precision in level measurement in cryogenic level tanks, Midwest Model 116 Bellows Type Cryogenic Differential Pressure Gauge is the instrument of choice for many industries that handle LOX, CO2, Nitrogen and similar level tanks.

Mid West Model 115 Model 116 Bellows Type Cryogenic Dp Gauge Cmc
Mid West Model 115 Model 116 Bellows Type Cryogenic Dp Gauge Back Cmc
Mid West Model 115 Model 116 Bellows Type Cryogenic Dp Gauge With Manifolds Cmc
Mid West Model 115 Model 116 Bellows Type Cryogenic Dp Gauge Side Cmc

Model 116 “Bellows Type Cryogenic” DP Gauge

The Mid-West Model 116 is made with a brass body and 316 stainless steel internals. This combination enables it to offer an astounding ±1% full scale accuracy which ensures reliable readings. The Model 116 comes standard with a 6-inch dial and is available with white on black or black on white lettering. The unit’s temperature operating range is -40°C to +93.3°C, making it ideal for any environment. With dual top and bottom process connections, this unit can be installed in any pipe alignment. Optional microswitches can be factory installed for critical pressure levels that necessitate a remote alarm or shutdown. The Model 116 also comes with a bi-directional over-pressurization relief valve, which protects the gauge from excess pressure in either direction. Its 316 stainless steel construction also insures against corrosion caused issues. Viton seals make for a long life expectancy.

Mid West Model 115 Model 116 Bellows Type Cryogenic Dp Gauge With Manifolds Cmc


  • Accuracy: ±1% of Full Scale
  • DP Range: 0-70″ H2O to 0-800″ H2O (175 mbar to 2.0 bar)
  • Safe Working Pressure: 500 PSIG (Standard) 1000 PSIG (optional)
  • Body Material: Brass
  • Internals: 316 S.S. Convoluted Bellows
  • Port: Dual Top and Bottom, 1/4″ FNPT connections with optional snubbers
  • Viton® Standard, other elastomers available
  • 6″ Black Dial with White Lettering (White Dial with Black Lettering)
  • Two times working pressure at ambient temperature
  • 500 PSIG and 1000 PSIG Static Pressure
  • 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.
  • Switch Options
    • 1 Switch
    • SPDT Outputs
    • 4 Amp @ 30 VDC
    • 3 Amp @ 240 VAC
    • 5 Amp @ 120 VAC
    • Adjustable from 3% to 100% F.S.
    • Operating Temperature -20ºF to +185ºF
  • Electrical Enclosures Weather-proof NEMA 4

Common Applications

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

Product Features

  • “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 30 lb. (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
  • 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