GB/T 2550-2025 Active
GB/T 2550-2025 Gas welding equipment—Rubber hoses for welding,cutting and allied processes
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 2550-2025 |
| CCS | Rubber hoses, adhesive tapes, and rubber cloths |
| ICS | Welding equipment |
| Implement Date | 2026-03-01 |