ISO 15615:2022 PDF

Gas welding equipment — Acetylene manifold systems for welding, cutting and allied processes — Safety requirements in high-pressure devices

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Title (English):

ISO 15615:2022

Gas welding equipment — Acetylene manifold systems for welding, cutting and allied processes — Safety requirements in high-pressure devices

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 16
Publication date:: October 26, 2022
Edition:: ISO IS 15615 edition 3 version 1
ICS:: 25.160.30

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Description (English):

This document establishes the general specifications, requirements and tests for devices located on the high-pressure side of acetylene manifold systems up to 2,5 MPa (25 bar) as defined in ISO 14114. It does not apply to high-pressure piping, high-pressure flexible hoses or pressure regulators.

Technical details

Technical committee: ISO/TC 44/SC 8 - Equipment for gas welding, cutting and allied processes
SKU: ISO 15615:2022

Abstract

Overview

ISO 15615:2022 specifies safety requirements for high‑pressure devices used on the high‑pressure side of acetylene manifold systems for welding, cutting and allied processes (up to 2.5 MPa / 25 bar). The standard applies to devices such as non‑return valves, automatic shut‑off devices, three‑way valves, stop valves, pressure gauges and multifunctional safety devices. It does not cover high‑pressure piping, flexible hoses or pressure regulators.

This third edition updates test and design requirements (e.g., added pressure‑gauge requirements, clarified three‑way valve tests, removed obsolete manual/remote shut‑off valve types) and emphasizes safe design against acetylene decomposition and overpressure.

Key topics and technical requirements

Scope & definitions: Devices located on the high‑pressure side of acetylene manifold systems as defined in ISO 14114. Key device types and terms (non‑return valve, automatic quick‑acting shut‑off device, change‑over unit) are defined.
Design: Metal parts in contact with gas must be electrically continuous and designed to remain at the same electrostatic potential as the device body to prevent static discharges.
Materials: Materials shall comply with ISO 9539.
Leakage limits
- External: Tested per ISO 9090 (before and after type tests).
- Internal: Maximum internal leakage ≤ 50 cm³/h for connections with internal bore

Related standards

Standards mentioned in the description

Overview

Key topics and technical requirements

Scope & definitions: Devices located on the high‑pressure side of acetylene manifold systems as defined in ISO 14114. Key device types and terms (non‑return valve, automatic quick‑acting shut‑off device, change‑over unit) are defined.
Design: Metal parts in contact with gas must be electrically continuous and designed to remain at the same electrostatic potential as the device body to prevent static discharges.
Materials: Materials shall comply with ISO 9539.
Leakage limits
- External: Tested per ISO 9090 (before and after type tests).
- Internal: Maximum internal leakage ≤ 50 cm³/h for connections with internal bore

ISO 15615:2022 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

Related standards

Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - General requir…

Gas welding equipment - Materials for equipment used in gas welding, cutting and allied processes - Amendment…

Gas tightness of equipment for gas welding and allied processes (ISO 9090:2019)