Model 130 - Differential Pressure Diaphragm Type


The low range capability of the Mid-West Model 130 is ideally suited for flow, liquid level and vacuum applications. Magnetic coupling between the sensing element and the indicating pointer provides for complete isolation of the process fluid within the pressure capsule. The few internal metal parts are 316L Stainless Steel.


  • Differential Pressure Range – 0-5″ H2O to 0-400″ H2O
    Available in a Variety of Equivalent Ranges and/or Flow Scales (square root)
  • Accuracy – ±2%* OR ±5% of Full Scale
  • Dial Size – 4-1/2″ Round (Standard)
  • Working Pressure:
    • Engineered Thermo Plastic – 300 PSIG (20 bar)
    • Metal – 500 PSIG (34 bar)
  • Material of Construction – Body: Plastic, Aluminum, Brass 316/316L S.S. or Hastelloy C
  • Materials of Construction – Internals: 316 S.S. or Hasteloy C and Elastomer Diaphragm
  • Switch Options:
    • SPDT 3W, 125 VAC/VDC, 0.25 AMPs (metal body only)
  • Electrical Enclosures – Weather-resistant, Weather-proof, NEMA 4X and NEMA 7
  • Hazardous Location Div I
Model 130
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