Model 142 - Differential Pressure Diaphragm Type


The Mid-West Model 142 provides outstanding capabilities not previously available. It is ideally suited for use on dissimilar fluids, wet gas or fluids with high concentration of solids, etc. It is a medium range differential pressure instrument available as a switch, a gauge, or both.


  • Differential Pressure Range 0-20″ H2O to 0-25 PSID
  • Available in a Variety of Equivalent Ranges and/or Flow Scales (Square Root)
  • Accuracy ±2%* of Full Scale, 4-1/2″ Rd. (Optional)
  • Working Pressure Alum and S.S. – 3000 P.S.I.G. Brass – 1500 PSIG
  • Material of Construction – Body Aluminum, Brass, or 316 Stainless Steel
  • Materials of Construction – Internals 316 Stainless Steel and Elastomer Diaphragm
  • Switch Options (Terminal Strip Interface):
    • 1 or 2 – SPDT 3W, 125 VAC/VDC, 0.25 amps
    • 1 or 2 – SPST (Normally Open) 25W, 240 VAC/VDC, 0.5 amps
  • Electrical Enclosures NEMA 4X and NEMA 7
  • CE Marked in Accordance With Low Voltage Directive
  • Hazardous Location Div II
Model 142
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