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Murphy 0-2000 PSI Panel Mount Pressure Swichgage OPLFC-S-2000-OS-P4L10

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Murphy 0-2000 PSI Panel Mount Mechanical Pressure Swichgage with SS Bourdon Tube and PT147 Transmitter - OPLFC-S-2000-OS-P4L10

Product Condition: NEW
Murphy Panel Mount Mechanical Pressure Swichgage Oil Sealed 0-2000 PSI with Pressure Transmitter OPLFC-S-2000-OS-P4L10
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

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The Murphy 0-2000 PSI Panel Mount Mechanical Pressure Swichgage with Stainless Steel Bourdon Tube and PT147 Pressure Transmitter OPLFC-S-2000-OS-P4L10 is a combination pressure indicating gage with adjustable low and high limit switch. This limit switch can be wired directly to electric pilot circuits to operate alarms, shutdown or start/stop of engines and electric motors. The OPLFC-S-2000-OS-P4L10 features a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switch is accessible from the front of the gage and the contacts have a self-cleaning motion to enhance electrical continuity.

The OPLFC is a panel mounting version of the OPLC. It has all of the features of the OPLC except the low limit contact lockout. The lockout must be done externally through the control circuit or with the optional “SA” lockout. The OPLFC is typically used in control panels such as for compressors, pumps, etc. This version can be environmentally sealed with either the “ES” or “OS” options. Contact lead termination is by pigtail wires.

The P4 (was PT147) option provides a remote seal mechanism to protect the Swichgage instrument sensing element from line pressures of highly viscous and mildly corrosive fluids. Ranges 100 thru 5,000 psi (689 kPa thru 34.5 MPa) [6.9 thru 344.7 bar]. A sealed stainless steel capillary tube, with stainless steel armor, transmits the pressure from the diaphragm seal to the Swichgage instrument. Oil well lead lines and pumps with highly viscous liquids are typical applications. If required, customer should provide a pulsation dampener.



  • 4-1/2 in. (114 mm) Dial
  • Panel Mount Version
  • Combination Indicating Gage and Critical Pressure Limit Switches
  • High and Low Pressure Limit Contacts Are Visible and Adjustable
  • Class I, Division 1, Groups C & D hazardous applications
  • Stainless Steel Bourdon Tube
  • OS = Oil Sealed Case
  • P4L = PT147 Pressure Transmitter with 10 ft Capillary (Pulsation dampener no longer supplied.)



  • Part No.: OPLFC-S-2000-OS-P4L10
  • Range: 0–2000 psi (0–13.79 MPa) [0–140 bar]
  • Case: Die cast aluminum; weatherproof
  • Contact Rating: 1 SPDT; Center off; 2 A, 30 VDC, 1 A, 125 VAC pilot duty
  • Dial: 4-1/2 in. (114 mm) white on black, dual scaled psi /kPa
  • Gage Accuracy: ±2% for the first and last quarters of the scale, the middle half is ±1%
  • Geared Movement: 302 and 304 stainless steel
  • Lens: Optically clear polycarbonate
  • Pointer: High visibility with a pointer calibration hub
  • Sensing Element: Stainless steel bourdon tube
  • Process Connection: 1/4 NPT
  • Tube Type: Drawn C-Tube
  • Range Selection Limits (psi-mpa-bar): Thru 1,000 psi (6.89 MPa) [68.9 bar]
  • Bourdon Tube and Tip Material (all joints TIG welded except “A”): 316 Stainless Steel
  • Socket Material: 316 Stainless Steel
  • Shipping Weight: 3 lbs 4 oz (1.5 kg)
  • Shipping Dimensions: 9-1/4 x 8-1/4 x 5-1/2 in. (235 x 210 x 140 mm)

Additional Information

Product Condition NEW
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