阀体无损探伤一些术语求助? 求助以下客户要求的翻译, 重点帮忙解释一下 MP RX LP UT 大致理解是需要阀体无损探伤,渗透试验、冲击试验 NDE REQUIREMENT 无损探伤要求 8.13 Cast valves shall be controlled according to the following method: 铸件阀门应按照以下方法 Ferritic Alloy Steels MP as per MSS SP-53 and ASTM E125 RX as per MSS SP 54 (1) Austenitic Stainless Steels LP as per ASTM E165 (1) On critical areas as per ASME B16.34 2” up to 24” 26” and larger Up to 600# 10% MP/LP 100% MP/LP From 900# 10% RX + 10% MP/LP 100% MP/LP + 100% RX - Tests shall be executed on the specified extent of castings from the same lot (1 valve minimum). If a defective casting is found, all the remaining castings of the same heat shall be examined at the SUPPLIER's charge. - In case of weld repair, volumetric test (UT/RX) is required. - If described as “Hydrogen” on the bill of material, ASME Class 900 and greater cast bodies shall be 100% RT tested. The examination shall be performed by radiography in accordance with ASME Section VIII, Division 1, Appendix 7. - For 2 inch and smaller valves, if radiography is not possible, a helium mass spectrometer test (probe technique) in accordance with ASME Section V, Subsection A, Article 10, Appendix V is acceptable. - Casting repairs and identification shall meet the requirements of paragraph 7-4 and 7-5 of Appendix 7 of ASME Section VIII, Division 1. - Butt weld end cast valves (all rating): all bevels ends shall be 100% RX. 8.14 Impact Test 8.14.1 All CS casting shall be impact tested minimum 27J at 20°C. 8.14.2 All LTCS casting shall be impact tested minimum 27J at -40°C. 7.6 Add. PJT Requirement 7.6 Where the purchase description specifies a specific requirement (e.g. LSS, HSS, Low Temp, PWHT, Hydrogen, etc), The vendor shall attach an additional tag spelling out this requirement. 查看更多2个回答 . 5人已关注