DIN ISO 5175-3:2026-06
Gas welding equipment - Safety devices - Part 3: Decomposition blockers for low-pressure acetylene (ISO 5175-3:2025); Text in German and English / Note: Date of issue 2026-04-24
| Fecha edición: |
2026-06-01
En Vigor
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| Idiomas disponibles: | Alemán, Inglés |
| Resumen: | This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 8, Equipment for gas welding, cutting and allied processes. This document specifies the general requirements and tests for decomposition blockers downstream of pressure regulators in acetylene manifold systems (see ISO 14114). Decomposition blockers can be used in the low-pressure section (downstream of acetylene manifold system outlet) up to 0,15 MPa (1,5 bar) e. g. in pipelines, outlet points or for the protection of low-pressure sections in big pipe systems. Decomposition blockers can only be used in sections with pure acetylene. The possible backflow of oxygen or air into the section where the decomposition blocker is installed needs to be prevented by a non-return valve downstream of the decomposition blocker. |
| Keywords: | Acetyl|Check valves|Compressed air|Compressive strength|Decomposition|Decomposition limiters|Definitions|Distributing systems|Equipment|Gas tightness|Gas welding|Gaseous fuels|Line pressure|Low pressure|Marking|Oxygen|Pressure regulators|Pressure rise|Safety|Safety devices|Specification (approval)|Testing|Welding|Welding equipment |
| ICS: | 25.160.30 - Equipo de soldeo |
| CTN: | |
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Equivalencia Internacional |
Idéntica ISO 5175-3:2025 |
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