ISO 5175-2:2017 PDF
Gas welding equipment — Safety devices — Part 2: Devices not incorporating a flame (flashback) arrestor
Gas welding equipment — Safety devices — Part 2: Devices not incorporating a flame (flashback) arrestor
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 17 октября 2017 г.
- Издание:
- ISO IS 5175 edition 1 version 1
- ICS:
- 25.160.30
ISO 5175-2:2017 specifies the general requirements and tests for safety devices for fuel gases and oxygen or compressed air which do not incorporate a flame (flashback) arrestor used downstream of manifold, cylinder and/or pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes. ISO 5175-2:2017 does not specify the location of these devices in the gas system. ISO 5175-2:2017 in not applicable to safety devices which incorporate a flame arrestor, covered by ISO 5175‑1.
Abstract
Overview
ISO 5175-2:2017 - "Gas welding equipment - Safety devices - Part 2: Devices not incorporating a flame (flashback) arrestor" defines general requirements and type tests for safety devices used with fuel gases and oxygen or compressed air that do not include a flame (flashback) arrestor. It applies to devices installed downstream of manifold, cylinder or pipeline outlet regulators and upstream of blowpipes for welding, cutting and allied processes. The standard does not prescribe specific installation locations and excludes devices covered by ISO 5175-1 (those incorporating flame arrestors).
Key topics and technical requirements
- Scope and definitions: Covers non-return valves, pressure relief valves, excess flow cut-off valves and multifunctional safety devices; terms follow ISO 15296 vocabulary.
- Design and materials: Connections per EN 560 and ISO 7289; materials must conform to ISO 9539.
- Gas tightness: External tightness testing per ISO 9090 (five samples for type testing). Internal leakage limits: ≤ 50 cm3/h for internal bores
Технические детали
- Технический комитет
- ISO/TC 44/SC 8 - Equipment for gas welding, cutting and allied processes
- SKU
- ISO 5175-2:2017
Похожие стандарты
Стандарты, упомянутые в описании