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ISO 5175-3:2025

Gas welding equipment - Safety devices - Part 3: Decomposition blockers for low-pressure acetylene
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ISO 5175-3:2025

Gas welding equipment - Safety devices - Part 3: Decomposition blockers for low-pressure acetylene

PUBLISH DATE 2025
ISO 5175-3:2025

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.

SDO ISO: International Organization for Standardization
Document Number ISO 5175
Publication Date Jan. 1, 2025
Language en - English
Page Count 12
Revision Level
Supercedes
Committee ISO/TC 44/SC 8
Publish Date Document Id Type View
Jan. 1, 2025 ISO 5175-3:2025 Revision