无密封旋转动力泵 第II类 规范

[中文适用范围]： 本文件规定了由永磁耦合（磁驱动泵）或屏蔽电机驱动的无密封旋转动力泵的要求，这些泵主要用于化工、水处理和石油化工行业。其使用可能由空间、噪音、环境或安全法规决定。无密封泵是指内转子完全包含在盛装被输送流体的压力容器中的泵。压力容器或主 containment 装置通过静态密封（如垫片或 O 形圈）进行密封。泵通常符合公认的标准规范（例如 ISO 5199、防爆、电磁兼容性），除非本文件另有特殊规定。本文件包括与泵的安装、维护和操作安全相关的设计特征，并定义了需要在采购方和制造商/供应商之间达成一致的项目。如果要求符合本文件并需要特定的设计特征，只要替代设计满足本文件的意图并详细描述，即可提供。不符合本文件所有要求的泵也可以提供，前提是偏差被完全识别和描述。当文件包含相互矛盾的要求时，按以下优先级顺序应用：a) 采购订单（或询价，如果未下订单），见附录 C 和 D；b) 数据表（见附录 A）或技术表或规范；c) 本文件；d) 其他标准。 [外文原描述]： This document specifies the requirements for seal-less rotodynamic pumps that are driven with permanent magnet coupling (magnet drive pumps) or with canned motor, and which are mainly used in chemical processes, water treatment and petrochemical industries. Their use can be dictated by space, noise, environment or safety regulations. Seal-less pumps are pumps where an inner rotor is completely contained in a pressure vessel holding the pumped fluid. The pressure vessel or primary containment device is sealed by static seals such as gaskets or O-rings. Pumps normally conform to recognized standard specifications (e.g. ISO 5199, explosion protection, electromagnetic compatibility), except where special requirements are specified herein. This document includes design features concerned with installation, maintenance and operational safety of the pumps, and defines those items to be agreed upon between the purchaser and manufacturer/supplier. Where conformity to this document has been requested and calls for a specific design feature, alternative designs can be offered providing that they satisfy the intent of this document and they are described in detail. Pumps which do not conform with all requirements of this document can also be offered providing that the deviations are fully identified and described. Whenever documents include contradictory requirements, they are applied in the following sequence of priority: purchase order (or inquiry, if no order placed), see Annexes C and D ; data sheet (see Annex A ) or technical sheet or specification; this document; other standards.