Graco Inc.

Air/Oil AO Series Valves  Series Progressive Monitoring Systems

Detects air line or oil line faults in your system

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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

Air Over Oil Manifold Assembly
U.S.
Metric
Maximum Air Working Pressure
250 psi
1.7 MPa, 17 bar
Maximum Fluid Working Pressure
250 psi
1.7 MPa, 17 bar
Lubricant
Oils up to ISO 460
2500 sus
Air Inlet
1/8 NPT female
1/8 NPT female
Maximum Operating Temperature
200° F
93° C)
Material
anodized aluminum, zinc plated steel, stainless steel, chrome alloy steel, fluorocarbon
anodized aluminum, zinc plated steel, stainless steel, chrome alloy steel, fluorocarbon
Air Sensor
Air Connection
1/8 NPT male
1/8 NPT male
Electrical Connection
DIN43650A, PIN 1 - COM, PIN 2 - Not used, PIN3 - Normally Open
DIN43650A, PIN 1 - COM, PIN 2 - Not used, PIN3 - Normally Open
Maximum Pressure
250 psi
1.7 MPa, 17 bar
Fixed Setpoint
35 psi
.24 MPa, 2.4 bar
Setpoint Direction
Falling
Falling
Circuit Form
SPST-NO (below 35 psi)
SPST-NO (below 35 psi)
Current Rating
5A @ 250 VAC. 5A @ 30 VDC (resistive)
5A @ 250 VAC. 5A @ 30 VDC (resistive)
Diaphragm Material
Buna-N
Buna-N