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Mechanical 0-30 PSI Differential Pressure Murphygage w/o Contact - Oil Sealed - 20DPG-OS-30 by Murphy

Product Condition: NEW
Mechanical Differential Pressure Murphygage 0-30 PSI without Contact 20DPG-OS-30 by Murphy
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

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The Mechanical 0-30 PSI Differential Pressure Murphygage Oil Sealed without Contact 20DPG-OS-30 by Murphy is a diaphragm-actuated, differential pressure-indicating gage. Gauge is intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system. The 20DPG mechanism is enclosed in a steel case coated to resist corrosion and it features a polycarbonate, break-resistant lens and a polished, stainless steel bezel to help protect this rugged, built-to-last instrument.


  • 2 inch/51 mm dial
  • Monitors Engine Oil and Fuel Filters
  • Combination Indicating Gage
  • Actuates Filter Backwash
  • Signals Coolant Loss or Aeration On Engine Water Pump
  • Gage ONLY without contact
  • OS = Oil sealed (Silicone Oil)



  • Part No.: 20DPG-OS-30
  • Range: 0-30 psi/0-207 kPa
  • Dial: White on black, dual scale psi/kPa
  • Case: Plated steel
  • Bezel: Polished stainless steel
  • Lens: Polycarbonate, high-impact
  • Process Connection: 1/8-27 NPTM brass
  • Sensing Element: Beryllium copper diaphragm
  • Gage Accuracy: ±3% maximum across scale
  • Temperature Range: Ambient: -40°F (-40°C) thru 150°F (66°C);Process: -40°F (-40°C) thru 250°F (121°C)
  • Unit Weight: 9 oz. (0.25 kg)
  • Unit Dimensions: 3 x 2-3/4 x 2-3/4 in. (76 x 70 x 70 mm)

Additional Information

Product Condition NEW
upc No

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