SAE J2470-2009
评定液压阀对锁定污染物敏感性的方法
Hydraulic Fluid Power Valves Method for Assessing the Lock Sensitivity to Contaminants
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- 标准号
- SAE J2470-2009
- 发布日期
- 2009年01月22日
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- T11
- 国际标准分类号
- 23.100.50;43.040.50
- 发布单位
- 美国机动车工程师协会
- 引用标准
- ISO 1219-1-2006 ISO 4021-1992 ISO 4405-1991 ISO 4406-1999 ISO 5598-2008 ISO 6403-1988 ISO 10770-1-1998 ISO 10770-2-1998 ISO 11500-2008 ISO 12103-1-1997 ISO 16889-2008 SAE ARP 490F-2008 SAE ARP 785A-1996
- 被代替标准
- SAE J 2470-2006
- 适用范围
- 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. This procedure assesses the contamination sensitivity of valves by contaminant lock. The procedure indicates the sensitivity of valves by contaminant lock due to various sizes of contaminants. The test is designed to assess the contaminant sensitivity of valves in tests of relatively short duration. See Appendix A for guidance as to how the tests and their results may be used. The tests are purposely designed to be severe in order to be applicable to a wide range of contaminated environments. The use of valves in many applications and for various purposes results in differing levels of acceptable performance. That is, the same valve may be unacceptable - in relation to operation in a contaminated environment - in one application and be acceptable in another. The user must make that decision based on a review of the expected level of the specific application and the test results obtained.