Pressure Measurement

Differential Pressure Gauge

140 Series (Diaphragm Type)

midwest 140 series differential pressure gauge diaphragm type

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Midwest 140 Series Differential Pressure Gauge is a diaphragm type pressure gauge that 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.

  • Differential pressure read range from 0-25 PSID to 0-100 PSID
  • Midwest 140 Series Diaphragm Type Differential Pressure Gauge has a simple rugged designs
  • Glass Reinforced Thermoplastic Gauge Front Is Standard
  • Weather Resistant & Corrosion Resistant Gauge Front
  • Up to 3000 PSIG Working Pressure (200 bar)
  • Midwest 140 Series Diaphragm Type Differential Pressure Gauge can be use for tank level monitoring, water treatment application, filter strainer monitoring, heat exchanger pressure drop monitoring and pump performance testing.

Technical Details

Accuracy+/- 2% F.S (Ascending)
Working Pressure3000 P.S.I.G (Aluminum & SS)
1500 P.S.I.G (Brass)
MaterialAluminum, Stainless & brass body
Dial Size2-2 ½” Rd. (Standard)
4-2 ½” Rd. (Optional)
Seals & Diaphragm MatBuna-N, Viton, Silicone , Neoprene, Ethylene Propylene
Connections1/4″ FNPT Back Connections
1/4″ FNPT End Connections
1/4″ FNPT Bottom Connections
1/2″ FNPT End Connections
7/16″ – 20 Str.Thd.O-Ring Port (Back Connections)
1/2″ FNPT Stainless Steel Adaptors