CB/T 3345-2008 in English

本标准规定了船用泵轴用内装单端面非平衡型和内装单端面平衡型机械密封装置的分类、基本参数和结构、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于介质为淡水、海水、船底水及燃料油等的船用动力泵和回转式容积泵旋转轴的密封装置的设计、制造和验收，也适用于船用辅机（如压气机、冷冻机、风机等）旋转轴的密封装置的设计、制造和验收。

Scope

This standard specifies the classification, basic parameters and structure, requirements, inspection methods, inspection rules, marking, packaging and storage of built-in single-face unbalanced and built-in single-face balanced mechanical seals (hereinafter referred to as sealing devices) for marine pump shafts . This standard applies to the design, manufacture and acceptance of sealing devices for the rotating shafts of marine power pumps and rotary positive displacement pumps whose media are fresh water, sea water, tank water and fuel oil. It also applies to marine auxiliary machines (such as compressors and refrigerators). , fans, etc.) design, manufacturing and acceptance of sealing devices for rotating shafts.