Mid-West Instrument
Made in the USA
Tel: (586) 254-6500 · Fax: (586) 254-6509
6500 Dobry Dr., Sterling Heights, Michigan 48314
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Differential Pressure Piston Type Gauge & Switches - Model 122
 Model 122
Model 122 "Filter Minder"
Common Applications
  • Filter/Strainer Monitoring
  • Compressed Air
  • Hydraulic
  • Refrigerant
  • Pump Performance Testing
  • Heat Exchanger Pressure
  • Drop Monitoring
Product Features
  • DP Ranges from 0-5 PSID to 0-110 PSID
  • Piston Sensing Element
  • 3000 PSIG Working Pressure (200 bar)
  • Over-Range Protection, High over Low and Low over High
  • Gauge Housings Aluminum with 316 Stainless Steel Internals
  • 2-1/2”, 3-1/2”, or 4-1/2” Round Dial
  • Wide Range of Elastomers
Product Features/Benefits
  • Simple Rugged Designs
  • Glass Reinforced Thermoplastic Gauge Front is Standard
  • Weather Resistant & Corrosion Resistant Gauge Front
  • Shatter Resistant Lens
  • 5 Year Warranty

Specifications:

  • Differential Pressure Range 0-5 PSID to 0-110 PSID (0-0.35 to 0-7.0 bar)
  • Accuracy ±5% Full Scale
  • Working Pressure 3,000 PSIG (200 bar)
  • Operating Temp. -40º F to +200º F (-40ºC to +93ºC)
  • Body Material: Aluminum
  • Internal Materials: 316 Stainless Steel
  • Switch Options
    • SPDT 3W, 125 VAC/VDC, 0.25 amps
    • SPDT 60W, 240 VAC/VDC, 1.0 amps
    • SPST 60W, 240 VAC/VDC, 3.0 amps
  • CE Marked in accordance with low voltage directive
  • Switch Mounting: Clamp On, Stick On Flat Pack
  • Process Connections: 1/4" FNPT End Conn.
  • Gauge Design: Magnetically Coupled Piston
  • Base Dimensions 3.3H" x 1.97W" x 4.93L"

Special Features:
  • Over-range Protection Full to Maximum Working Pressure
  • Panel Mounting Standard
  • Pipe Mounting Kit Optional - 2" U-Bolt
  • Wall Mounting Optional - Rear Mount
Literature Links

Product Bulletin Bulletin_122_11.pdf

Installation/Operation

IM122.pdf
install.pdf
Typical Manifold Installation


The Mid-West Advantage:
  • 5 Year Warranty
  • 30 + Years Hazardous Location product manufacturer.
  • OEM capability
  • Fast on-time Deliveries
  • Friendly Customer Support
  • Certified Quality System
    CSA B51-09 SAI GLOBAL