SIST EN ISO 5171:2019 PDF

Name: SIST EN ISO 5171:2019 — Gas welding equipment - Pressure gauges used in welding, cutting and allied processes (ISO 5171:2019)
SKU: SIST EN ISO 5171:2019
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Gas welding equipment - Pressure gauges used in welding, cutting and allied processes (ISO 5171:2019)

Название (английский):

SIST EN ISO 5171:2019

Gas welding equipment - Pressure gauges used in welding, cutting and allied processes (ISO 5171:2019)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 22
Дата публикации:: 5 сентября 2019 г.
ICS:: 17.100
Технический комитет:: VAR - Welding

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Описание (английский):

This document specifies requirements for Bourdon-tube pressure gauges normally used with compressed gas systems at pressures up to 30 MPa (300 bar) in welding, cutting and allied processes. It also covers use for dissolved acetylene and for liquefied gases under pressure. It does not cover gauges for acetylene in acetylene-manufacturing plants.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 5171:2019 - Gas welding equipment: pressure gauges used in welding, cutting and allied processes - specifies requirements for Bourdon-tube pressure gauges used with compressed gas systems up to 30 MPa (300 bar). The standard covers use with dissolved acetylene and liquefied gases under pressure, but explicitly excludes gauges used in acetylene-manufacturing plants. EN ISO 5171:2019 is the CEN-endorsed version of ISO 5171:2019.

Key topics and technical requirements

Scope and units: All pressures are gauge (effective) pressures expressed in MPa and bar.

Maximum scale reading: Values are selected from specified series (Table 1 / preferred numbers); the maximum operating pressure mark must not exceed 3/4 of the maximum scale reading.

Manufacturing requirements: Material selection rules (including special provisions for oxygen pressure gauges) and general construction requirements.

Design and dimensions: Requirements for case, flange, dial, pointer, pointer stop and window to ensure reliable indication and safe mounting.

Safety features: Venting/blowout design to safely dissipate internal pressure in the event of tube leakage or burst.

Marking: Mandatory marking elements for identification, maximum pressure, accuracy class and traceability.

Tests and conformity: Defined test program including accuracy, torsion, bend, case vent, overpressure and leakage (Test A and Test B) and flammability tests to validate performance and safety.

Normative references: Linked standards such as ISO 14114 (acetylene manifolds), ISO 15296 (vocabulary) and pipe thread standards are referenced for consistent implementation.

Applications and users

EN ISO 5171:2019 is intended for:

Manufacturers of gas welding and cutting equipment and Bourdon-tube pressure gauges

Equipment designers and OEMs specifying gauges for oxygen, acetylene (dissolved), and other compressed or liquefied gases

Procurement, quality, and compliance teams verifying equipment selection against international requirements

Testing laboratories and conformity assessors performing the specified mechanical, leakage and flammability tests

Safety officers and maintenance personnel applying safe selection and marking practices for gas welding systems

Practical benefits include improved safety, consistent performance across welding and cutting installations, and easier regulatory compliance when specifying gauges for high-pressure gas systems.

Related standards

ISO 14114 - Acetylene manifold systems for welding/cutting

ISO 15296 - Vocabulary for gas welding equipment

ISO pipe-thread standards (e.g., ISO 7-1, ISO 228-1)

ISO 4589-2 - Plastics burning behaviour (referenced for flammability testing)

Keywords: EN ISO 5171:2019, pressure gauges, Bourdon-tube, gas welding equipment, welding cutting, acetylene, oxygen, 30 MPa, safety testing.

SIST EN ISO 5171:2019 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 5171:2019

Gas welding equipment — Pressure gauges used in welding, cutting and allied processes

SIST EN ISO 14114:2018

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

SIST EN ISO 15296:2018

Gas welding equipment - Vocabulary (ISO 15296:2017)

BS ISO 7176-31:2023

Wheelchairs - Lithium-ion battery systems and chargers for powered wheelchairs. Requirements and test methods

BS ISO 22810:2010

Horology. Water-resistant watches.

SIST EN ISO 4589-2:2017

Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test (ISO 4589-2:…