标准编号:	NB/T 47025-2012
中文名称:	缠绕垫片
英文名称:	Spiral wound gaskets
行业分类:	NB    能源行业标准
发布机构:	国家能源局
发布日期:	2012-11-9
实施日期:	2013-3-1
标准状态:	valid
替代旧标准:	JB/T 4705-2000 缠绕垫片
翻译语言:	英文
文件格式:	PDF
中文字符数:	4,000 字
翻译价格(元):	280.0
交付时间:	付款后 1 个工作日

1 Scope This standard specifies the dimension and technical requirements of spiral wound gaskets for pressure vessel flanges. This standard is applicable to spiral wound gaskets for the "B-type Socket-weld Flange" (NB/T 47022) and "Welding Neck Flange" (NB/T 47023). Note: the use of materials containing asbestos shall comply with requirements of related laws and regulations. During the production and use of gaskets containing asbestos, protective measures shall be taken to avoid any personal health hazard. 2 Normative References The following documents are indispensable for the application of this document. For dated references, only the dated edition applies. For undated references, the latest edition (including all the amendments) of the normative document applies.

Foreword I 1 Scope 1 2 Normative References 1 3 Code, Designation and Designation Example 1 4 Structural Type and Dimension 2 5 Limit Deviation of Gasket Dimension 5 6 Other Technical Requirements for Gaskets 5