MVME187-032B模块控制器
前缀NPS的使用适用于带有等级名称的钢制阀门。3.8外壳试验超过阀门冷工作压力CWP额定值的压力试验，目的是验证阀门承压结构的稳固性和强度。3.9目视可检测泄漏—阀门压力试验期间的泄漏，通过或通过正常视觉验证的压力边界或关闭构件。4检查、检查和补充检查4.1阀门制造商工厂的检查买方应在采购订单中说明其在阀门制造商工厂检查阀门和见证试验和检查的意图。每当订单上的工作正在进行时，买方检验员应能自由进入与阀门制造相关的设备的任何部分。4.2阀门制造商工厂外的检查当阀门采购商规定检查将包括在阀门制造商工厂以外的地方制造的壳体部件时，这些部件应在其制造地点接受阀门采购商的检查。4.3检查通知当规定由买方进行检查时，阀门制造商应在要求的阀门测试和任何规定的补充检查或检查前五个工作日通知买方，并注明采购订单中规定的通知。如果需要检查，阀门制造商还应提前五个工作日向买方发出通知，说明在阀门制造商工厂外制造的壳体部件可在何处和何时进行检查。
4.4检查范围采购订单中可规定检查范围，除非另有说明，否则检查范围将限于以下内容。a） 在组装期间检查阀门，以确保符合采购订单的规范。检查可能包括使用指定的无损检测方法。b） 见证要求和规定的可选压力测试和检查。版权所有美国石油学会由IHS根据API许可证提供，许可证持有人=阿尔伯塔大学/5966844001，用户=sam，albert未经IHS许可，不得复制或联网，不得转售，2013年6月28日16:13:35 MDT 4 API标准598 c）见证任何补充检查（见4.6）。d） 审查工厂记录和无损检测记录（包括规定的射线照片）。4.5检查4.5.1阀门制造商应对阀体、阀盖、盖子和关闭元件的所有铸件进行目视检查，以确保符合MSS SP-55。4.5.2应检查每个阀门，以确保其符合本标准和参考采购规范（如API 599）。4.5.3所有检查应按照符合适用标准的书面程序进行。4.6补充检查只有在采购订单中规定的情况下，并且只有在规定的范围内，才需要补充检查。钢铸件或锻件的磁粉、射线照相、液体渗透和超声波检查应符合ASME B16.34第8部分的要求，或买方自己的程序和验收标准（如有规定）。
The use of the prefix NPS applies to steel valves with grade designations. 3.8 The shell test is a pressure test that exceeds the CWP rating of the valve cold working pressure to verify the stability and strength of the valve pressure bearing structure. 3.9 Visually Detectable Leakage - leakage during valve pressure test, pressure boundary or closure components that pass or pass normal visual verification. 4 Inspection, inspection and supplementary inspection 4.1 Inspection at the valve manufacturer's factory The Buyer shall state in the purchase order its intention to inspect the valve and witness the test and inspection at the valve manufacturer's factory. Whenever the work on the order is in progress, the Buyer's inspectors shall have free access to any part of the equipment related to valve manufacturing. 4.2 Inspection outside the valve manufacturer's factory When the valve purchaser specifies that the inspection will include the shell components manufactured outside the valve manufacturer's factory, these components shall be inspected by the valve purchaser at their manufacturing location. 4.3 Notice of Inspection When the inspection is specified by the Buyer, the valve manufacturer shall notify the Buyer five working days before the required valve test and any specified supplementary inspection or inspection, and indicate the notice specified in the purchase order. If inspection is required, the valve manufacturer shall also notify the Buyer five working days in advance to specify where and when the shell components manufactured outside the valve manufacturer's factory can be inspected.
4.4 Scope of inspection The scope of inspection can be specified in the purchase order. Unless otherwise specified, the scope of inspection will be limited to the following. a) Inspect the valve during assembly to ensure compliance with the purchase order specifications. Inspections may include the use of specified non-destructive testing methods. b) Witness optional pressure tests and inspections as required and specified. Copyright American Petroleum Institute is provided by IHS according to API license. License holder=University of Alberta/5966844001, user=sam, albert is not allowed to copy, network or resell without license from IHS. On June 28, 2013, 16:13:35 MDT 4 API Standard 598 c) witnessed any replenishment inspection (see 4.6). d) Review factory records and NDT records (including specified radiographs). 4.5 Inspection 4.5.1 The valve manufacturer shall visually inspect all castings of the valve body, bonnet, cover and closing element to ensure compliance with MSS SP-55. 4.5.2 Each valve shall be inspected to ensure compliance with this standard and the referenced procurement specification (e.g. API 599). 4.5.3 All inspections shall be carried out in accordance with written procedures conforming to applicable standards. 4.6 Supplementary inspection is only required if and to the extent specified in the purchase order. Magnetic particle, radiographic, liquid penetrant and ultrasonic inspection of steel castings or forgings shall conform to the requirements of ASME B16.34, Part 8, or the Buyer's own procedures and acceptance standards (if specified).
