標準編號:	GB/T 2550-2007
中文名稱:	氣體焊接設備焊接、切割和類似作業用橡膠軟管
英文名稱:	Gas welding equipment—Rubber hose for welding cutting and allied processes
中標分類:	G42    膠管、膠帶、膠布
行業分類:	GB    國家標準
ICS分類:	25.160.30 25.160.30    焊接設備 25.160.30
發布機構:	中華人民共和國國家質量監督檢驗檢疫總局 中國國家標準化管理委員會
發布日期:	1981-3-28
實施日期:	2008-6-1
標準狀態:	superseded
被新標準替代:	GB/T 2550-2016 氣體焊接設備 焊接、切割和類似作業用橡膠軟管
被替代日期:	2016-9-1
作廢日期:	2016-09-01
替代舊標準:	GB/T 2551-1992 焊接及切割用橡膠軟管 乙炔橡膠軟管 GB/T 2550-1992 焊接及切割用橡膠軟管 氧氣橡膠軟管
翻譯語言:	英文
文件格式:	PDF
中文字符數:	7000 字
翻譯價格(元):	560.0
交付時間:	付款后 1 個工作日

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)].