Standard NBN EN ISO 3821:2019

Gas welding equipment - Rubber hoses for welding, cutting and allied processes (ISO 3821:2019, Corrected version 2021-05)
Publication date
25.160.30 Welding equipment 83.140.40 Hoses
Summary :
This document specifies requirements for rubber hoses (including twin hose
s) for welding, cutting and allied processes. This document specifies requirements for rubber hoses for normal duty of 2 MPa (20 ba
r) and light duty [limited to hoses for maximum working pressure of 1 MPa (10 ba
r) and with bore up to and including 6,3 mm]. This document applies to hoses operated at temperatures −20 °C to +60 °C and used in: — gas welding and cutting; — arc welding under the protection of an inert or active gas; — processes allied to welding and cutting, in particular, heating, brazing, and metallization. This document does not specify requirements for hose assemblies; these are detailed in ISO 8207. This document applies neither to thermoplastics hoses nor to hoses used for high pressure [>0,15 MPa (>1,5 ba
r)] acetylene.
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