泵 离心泵与旋转泵的轴密封系统

[中文适用范围]： 本规范规定了石油、天然气及化工行业所用离心泵和回转泵密封系统的要求与建议。详见附录A.1.1和A.1.2。采购方或密封供应商应负责确保所选密封件及辅助设备适用于预期工况。本规范主要适用于存在危害性、易燃性或/和毒性的工况，旨在提高设备可靠性、改善设备可用性，并降低向大气的排放量及密封系统的全寿命周期成本。本规范适用于泵轴直径为20 mm（0.75 in.）至110 mm（4.3 in.）的密封装置；亦适用于密封备件，并可作为现有设备升级改造的参考依据。本规范提供了一套针对其所涵盖密封配置的分类体系，按类别、类型、布置形式及方位进行划分。本规范在API 6中作为规范性引用文件。 [外文原描述]： This standard specifies requirements and gives recommendations for sealing systems for centrifugal and rotary pumps used in the petroleum, natural gas, and chemical industries. See A.1.1 and A.1.2. It is the responsibility of the purchaser or seal vendor to ensure that the selected seal and auxiliaries are suitable for the intended service condition. It is applicable mainly for hazardous, flammable, and/or toxic services where a greater degree of reliability is required for the improvement of equipment availability and the reduction of both emissions to the atmosphere and life-cycle sealing costs. It covers seals for pump shaft diameters from 20 mm (0.75 in.) to 110 mm (4.3 in.). This standard is also applicable to seal spare parts and can be referred to for the upgrading of existing equipment. A classification system for the seal configurations covered by this standard into categories, types, arrangements, and orientations is provided. This standard is referenced normatively in API 6