標準號：SAE ARP 490F-2008
中文標準名稱：電液伺服閥
英文標準名稱：(R) Electrohydraulic Servovalves
標準類型：V29
發布日期：2008/2/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：V29
國際標準分類號：49.080
引用標準：ANSI/NCSL Z 540.1-1994;MIL-PRF-83282-1997;MIL-PRF-87257-2004;SAE AIR 810;SAE ARP 1231-1973;SAE ARP 1383B-2003;SAE AS 1241C-1997;SAE AS 4059E-2005;MIL-HDBK-1587;MIL-STD-810;NASM33540;NHB 5300.4;RTCA DO-160
適用范圍：This SAE Aerospace Recommended Practice (ARP) provides definitions and background information for understandingthe physical performance, and test procedures of electrohydraulic flow control servovalves.The recommendations are confined to interface definition and input/output characteristics. This ARP does not restrict orattempt to define the internal characteristics of servovalves. As such, the recommendations are equally applicable tovalves having different internal functioning, different ratings, different physical size, and valves used with different fluids. Incertain instances, standards for valve design are recommended for the purpose of interchangeability, as for example,valve polarity, mounting bolt and fluid port locations.The ARP provides extensive guidance for the preparation of Procurement Specifications and for functional testing. Asample Procurement Specification is provided in Appendix A. The primary focus of this ARP is on four-way valves. Threewayvalves are discussed to a limited extent and terminology for pressure control valves is presented in Appendix B.This ARP is applicable to fluid power systems in all types of flight vehicles, and it is applicable to Military, Civil and Spacedesign/certification standards. Additional specifications or specialized test procedures may be necessary to define specialrequirements for specific control systems, and such considerations are beyond the scope of this ARP.