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Centralized Equipment Metering Devices

Air/Oil AO Series Valves

Air/Oil AO Series Valves

Series Progressive Monitoring Systems

Detects air line or oil line faults in your system

A Graco exclusive design! The Air Oil solution that detects air line or oil line faults in your system. Series progressive monitoring ensures your critical bearings are lubricated properly.


  • Convenient manifold design mounts directly to the face of standard Graco series progressive divider valve assembly
  • Check valve design prevents oil from being forced into the air system if lube lines get crushed or bearings get blocked
  • Air combines with the oil after the fluid outlet check, preventing air from backing up into your source oil system
  • Complete kits include manifold, air sensor, and check valves for easy installation
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