Pressure Measurement

Differential Pressure Gauge

Midwest 130 Series

midwest 130 series differential pressure gauge


Midwest 130 Series Differential Pressure Gauge measures differential pressure through a flexible elastomer diaphragm and a calibrated range spring. The diaphragm assures total separation between the high and low pressure signals. A magnetic coupling transmits the sensing element motion to the indicating pointer. This prohibits the possibility of process fluid leaking into the gauge case, while assuring total isolation of the process fluid within the pressure capsule.

  • The 130 Series Pressure Gauge has a diaphragm design that allow the use of dissimilar fluids on high and low side of gauge.
  • Wide range of elastomers.
  • Simple, rugged designs
  • Weather and corrosion resistant gauge front
  • Can be used with vacuum or pressure applications.
  • Up to 500 PSIG Working pressure.
  • The 130 Series Differential Pressure Gauge can be use for tank level monitoring, water treatment application, vacuum application, and filter monitoring for gases and flow indication /balancing.

Technical Details

Accuracy+/- 2% or +/- 5% of Full Scale
Working Pressure300 P.S.I.G (Engineered Thermo Plastic)
500 P.S.I.G (Metal)
MaterialPlastic, Aluminum, Stainless, Brass & Hastelloy-C body
Dial Size4-2 ½” Rd. (Standard)
SealsBuna-N, Viton, Neoprene, Teflon, Ethylene Propylene or Perfluoroelastomer
Seals & Diaphragm MatBuna-N, Viton, Silicone , Ethylene Propylene
Connections1/4″ C.S.Comp.Tube Ftgs.(2) Model P or 1/4″ FNPT (4) for Models A, B
1/4″ 316 S.S.Comp.Tube Ftgs.(2)
1/4″ FNPT Brass Adapters (2) (Model P Only)
1/4″ FNPT 316 S.S.Adapters (2) (Model P Only)
1/2″ FNPT 316 S.S.Adapters (2) (All Models, Except P)