GB/T 2550-2025 Active National standards

GB/T 2550-2025 Gas welding equipment—Rubber hoses for welding,cutting and allied processes

GB/T 2550-2025 Gas welding equipment—Rubber hoses for welding,cutting and allied processes

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us
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Basic Information

Standard Code: GB/T 2550-2025
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Rubber hoses, adhesive tapes, and rubber cloths
ICS Name: Welding equipment
Publish Date: 2025-08-29
Implement Date: 2026-03-01
Pages: 20 pages

Scope

This document specifies the requirements for rubber hoses (including parallel hoses) used in welding, cutting, and similar operations.
This document specifies the requirements for standard-type rubber hoses with a working pressure of 2.0 MPa and lightweight rubber hoses (limited to a maximum working pressure of 1.0 MPa and an inner diameter of ≤ 6.3 mm), as well as acetylene hoses (with a maximum working pressure of 0.3 MPa).
This document applies to hoses with a working temperature of -20°C to +60°C and the following applications:
—— Gas welding and cutting;
—— Arc welding under inert or reactive gas protection;
—— Similar welding and cutting operations, particularly heating, brazing, and metal spraying.
This document does not apply to thermoplastic rubber hoses, nor to high-pressure (>0.3 MPa) acetylene hoses.

Development Information

Word Count: 26 Thousand words Pages: 20 pages

Replace the following standards

Referenced Standards

GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 528-2009 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids GB/T 1690-2006 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 1690-2010 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 2941-2006 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 2941-2025 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 3512-2001 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 3512-2014 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 5563-1994 Rubber and plastics hoses and hose assemblies—Hydrostatic testing GB/T 5563-2006 Rubber and plastics hoses and hose assemblies—Hydrostatic testing GB/T 5563-2013 Rubber and plastics hoses and hose assemblies—Hydrostatic testing GB/T 5563-2025 Rubber and plastics hoses and hose assemblies—Hydrostatic testing GB/T 5565.1-2017 Rubber and plastics hoses and tubing—Measurement of flexibility and stiffness—Part 1:Bending tests at ambient temperatures GB/T 5565.2-2017 Rubber and plastics hoses and tubing—Measurement of flexibility and stiffness—Part 2: Bending tests at sub-ambient temperatures GB/T 7528-2002 Rubber and plastics hoses and hose assemblies—Vocabulary GB/T 7528-2011 Rubber and plastics hoses and hose assemblies—Vocabulary GB/T 7528-2019 Rubber and plastics hoses and hose assemblies—Vocabulary GB/T 9573-2003 Rubber and plastics hose and hose assemblies—Methods of measurement of dimensions GB/T 9573-2013 Rubber and plastics hoses and hose assemblies—Methods of measurement of the dimensions of hoses and the lengths of hose assemblies GB/T 9575-2003 Rubber and plastics hoses for general—Purpose industrial applications-Bore diameters and tolerances,and tolerances on length GB/T 9575-2013 Rubber and plastics hoses—Hose sizes, minimum and maximum inside diameters,and tolerances on cut-to-length hoses GB/T 14905-2020 Rubber and plastics hoses—Determination of adhesion between components GB/T 18422-2001 Rubber and plastics hoses and hose assemblies—Determination of permeability to gas GB/T 18422-2013 Rubber and plastics hoses and hose assemblies—Determination of permeability to gas GB/T 24134-2009 Rubber and plastics hoses—Assessment of ozone resistance under static conditions ISO 11114-3 ISO 15296 GB/T 7528-2025 Rubber and plastics hoses and hose assemblies—Vocabulary

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