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Hydraulic Fluid Power—Valves—Method for Assessing the Lock Sensitivity to Contaminants
- Ground Vehicle Standard
- J2470_200901
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice defines a procedure, which will aid in assessing the contaminant sensitivity of hydraulic valves. The approach taken defines a test procedure with flexibility for testing valves in a wide range of contamination levels. The user of this procedure must establish the contamination levels for testing. Three levels are suggested which should cover the range for most valve applications. This procedure does not establish the contaminant sensitivity requirements for any valve. The user of this procedure needs to be aware of the system contamination level that the valve will operate in and select test contamination levels significantly higher than the operating level to assess the suitability of the valve. The test procedure permits a valve to be tested without disassembly and therefore permits protection of proprietary design information.
Rationale
The primary reasons for this revision are to identify current sources for the carbonyl iron contaminant and to update the requirements to reflect the currently available carbonyl iron contaminants. The sources of all test contaminants and the listing of laboratories with capability to conduct the test have also been updated.
Recommended Content
| Technical Paper | The Behaviour of Hydraulic Systems in Low Operating Temperatures |
| Aerospace Standard | Fluid Properties |
| Ground Vehicle Standard | Hydraulic Hose |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| TABLE 1 | TEST CONTAMINANTS | |
| TABLE 2 | CARBONYL IRON GRADES | |
| TABLE 3 | RECOMMENDED VALVE TEST CONTAMINANT CONCENTRATIONS | |
| TABLE B1 | ISP GRADES FOR CARBONYL IRON CONTAMINANTS | |
| TABLE C1 | SAMPLE DATA SHEET - VALVE CONTAMINANT SILT LOCK TEST REPORT | |
| TABLE C1 | SAMPLE DATA SHEET - VALVE CONTAMINANT SILT LOCK TEST REPORT |
Issuing Committee
Reference
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