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Murphy 300 PSI Pressure Gage without Contact Oil Sealed A20PG-OS-300

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Mechanical 0-300 PSI Pressure Murphygage 2 in. without Contact - Polycarbonate Case - A20PG-OS-300 by Murphy

Product Condition: NEW
Murphygage 0-300 PSI Mechanical Pressure Gage Oil Sealed without Contact A20PG-OS-300
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

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The Mechanical 0-300 PSI Pressure Murphygage Oil Sealed A20PG-OS-300 by Murphy is a diaphragm-actuated pressure-indicating gage without contacts/switch. This rugged, built-to-last instrument is face sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel and O-ring seals. Accuracy and protection from moderate overpressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning.

Applications includes: engines/equipment in Oil Field, Marine, Irrigation, Construction and Trucking Engines for Lube Oil Pressure, Water Pump Pressure, Hydraulic Pressure and Air Pressure.



  • 2 inch/51 mm dial
  • Corrosion Resistant Polycarbonate Case
  • Indicating Gage
  • Switch Can Activate Alarms and/or Shut Down Equipment
  • Gage only model without contacts
  • OS = Oil sealed (Silicone Oil)


  • Part No.: A20PG-OS-300
  • Range: 0-300 psi (2.1 MPa) [20 bar]
  • Maximum Pressure: 500 psi (3.4 MPa)
  • Standard Settings: 75 psi (517 kPa) [5.0 bar]
  • High Settings: 225 psi (1.6 MPa) [15 bar]
  • Dial: White on black, dual scale; U.S.A. standard scale is psi/kPa
  • Case: Polycarbonate/glass filled, corrosion-resistant; steel mounting clamp included
  • Bezel: Polished stainless steel
  • Pointer: Tempered nickel silver; Red tip
  • Lens: Polycarbonate, high-impact
  • Oil: Silicon Oil
  • Temperature Range: Ambient: -40°F (-40°C) thru 150°F (66°C); Process: -40°F (-40°C) thru 250°F (121°C)
  • Process Connection: 1/8-27 NPTM brass
  • Sensing Element: Beryllium copper diaphragm
  • Unit Weight: 8 oz. (0.23 kg)
  • Unit Dimensions: 3 x 3 x 3 in. (76 x 76 x 76 mm)

Additional Information

Product Condition NEW
upc No

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