This standard specifies the terms and definitions,classification and marking,materials,dimensions and deviations,design,manufacturing,inspection and testing,rules of inspection,sign,packaging,shipping and storage,type selection,requirements for installation and operating,and security recommendationsof metal bellows expansion joints (hereinafter referred to as expansion joints).
This standard is applicable to the design,manufacturing,inspection,type selection,installation and operating of expansion joints installed in pipelines of which flexible elements are metal bellows.This standard may be referred to for the use of the expansion joints of other applications.
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1.1 本标准规定了压力容器波形膨胀节(以下简称波形膨胀节)的术语和定义、通用要求、分类和标记、材料、设计、制造、检验与验收、检验规则、出厂要求、贮存与安装。
[STFZ]1.2 本标准规定的压力容器波形膨胀节适用于:
a) 压力容器用无加强U形、加强U形或Ω形,承受内压或外压的单层或多层波形膨胀节,其中波纹管符合7.2.1的规定。
b) 设计压力不大于12 MPa。
c) 〖ZK(〗设计温度适用以下条件:
1) 钢材不超过GB/T 150.2—2011列入材料的允许使用温度范围;
2) 其他金属材料按相应引用标准中列入材料的允许使用温度确定。
d) 公称直径不大于4 000 mm。
e) 设计压力(MPa)与公称直径(mm)的乘积不大于2.7×104。
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