Oil for Hydraulic Systems
Lubricant selection criteria and specification inputs for oil for hydraulic systems.
This page lists neutral selection inputs for hydraulic oils. Use the system manufacturer specification and operating conditions to determine ISO viscosity grade and additive requirements.
Operating Conditions
| Operating Parameter | Typical Range/Value |
|---|---|
| Operating Temperature | Application-dependent; consider reservoir and return line temperatures |
| Contamination Control | Filtration level and water control determine fluid life |
| Pump Type | Vane; gear; piston (requires matching specification) |
| Materials | Seal material compatibility must be confirmed |
Required Lubricant Properties
| Required Property | Specification |
|---|---|
| ISO Viscosity Grade | Common grades include ISO VG 32, 46, 68 (application-dependent) |
| Anti-wear Performance | Select per pump/manufacturer specification |
| Demulsibility | Required where water ingress is possible |
| Foam Control | Required for stable operation and metering |
Availability
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Sources
- Manufacturer documentation
- Published lubrication guides (general)
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