This manual provides installation, maintenance, and troubleshooting instructions for the Keystone PremiAir pneumatic actuator, covering assembly…
The Keystone PremiAir pneumatic actuator features a compact rack and pinion design conforming to EN ISO 5211 standards. It is designed for quarter-turn valves and includes opposed piston construction with nitrotech™ treated drive shafts and engineered polymer bearings. The actuator body is made of extruded aluminium with hard anodizing and electrostatic powder coating.
| Operating Air Pressure Range | 2.75 barg (40 psig) to 8.3 barg (120 psig) |
|---|---|
| Maximum Air Pressure | 10.3 barg (150 psig) |
| Design Standard | EN ISO 5211 |
| Drive Type | Rack and Pinion |
| Body Material | Extruded aluminium |
| Drive Shaft Treatment | Nitrotech treated |
Unless the operating environment is extremely harsh, they do not require re-lubrication as they are factory lubricated with molyrace Lt2.
AeroShell Grease 7 is specified for these low-temperature applications.
No, oil mist lubricated air should not be used unless the manufacturer of the pneumatic valve positioners or controllers states specifically that they are compatible.