OPL Series

  • Combination Indicating Gage and Critical Pressure Limit Switches
  • High and Low Pressure Limit Contacts Are Visible and Adjustable
  • Panel and Surface Mount Versions
  • Indicating-only Gage Available
  • Latching Control Relay Versions Available

FW Murphy Production Controls offers support for all our products. If you are unable to find the product that you need, please call us at 918-957-1000.

Stage V: 
Product Overview: 

The OPL-series pressure gage instruments are combination pressure indicating gages with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or the start/stop of engines and electric motors. Surface mount or panel mount enclosure is available for most versions. All versions feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from the front of the gage. Limit contacts have self-cleaning motion to enhance electrical continuity.

Other versions available (details on next page):

  • Gage only without contacts 
  • Gage instrument with built-in latching relay for start-stop operations.