标准编号:	GB/T 2550-2007
中文名称:	气体焊接设备焊接、切割和类似作业用橡胶软管
英文名称:	Gas welding equipment—Rubber hose for welding cutting and allied processes
中标分类:	G42    胶管、胶带、胶布
行业分类:	GB    国家标准
ICS分类:	25.160.30 25.160.30    焊接设备 25.160.30
发布机构:	中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会
发布日期:	1981-3-28
实施日期:	2008-6-1
标准状态:	superseded
被新标准替代:	GB/T 2550-2016 气体焊接设备 焊接、切割和类似作业用橡胶软管
被替代日期:	2016-9-1
作废日期:	2016-09-01
替代旧标准:	GB/T 2551-1992 焊接及切割用橡胶软管 乙炔橡胶软管 GB/T 2550-1992 焊接及切割用橡胶软管 氧气橡胶软管
翻译语言:	英文
文件格式:	PDF
中文字符数:	7000 字
翻译价格(元):	560.0
交付时间:	付款后 1 个工作日

1 Scope This Standard specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes. The term “allied processes” means, in particular, heating, brazing and metallization. This Standard specifies requirements for rubber hoses for normal duty up to 2 MPa (20 bar) and light duty [limited to hoses for maximum working pressure up to 1 MPa (10 bar) and with nominal bore less than or equal to 6.3 mm]. This Standard pertains to hoses operated at temperatures - 20 ℃ to + 60 ℃. Plastic hoses are excluded from this Standard. Different colours and markings are specified for identification of the gas. Note 1: If hoses for liquefied petrol gases are used without regulators the use of light duty hoses is not allowed. Note 2: In the case of hoses for use with liquid flux dispensers fitted in the fuel gas supply line, the manufacturer should be consulted on the suitability of the hose for this application. This Standard applies to hoses used in: — Gas welding and cutting; — Arc welding under the protection of an inert or active gas; — Processes allied to welding and cutting. This Standard does not apply to hoses used for high pressure acetylene [more than 0.15 MPa (1.5 bar)].