ISO 2503:2009 气焊设备 焊接、切割及相关工艺过程中使用300bar（30 MPa）以下的气瓶减压器和带流量计的减压器

标准编号：ISO 2503:2009

中文名称：气焊设备 焊接、切割及相关工艺过程中使用300bar（30 MPa）以下的气瓶减压器和带流量计的减压器

英文名称：Gas welding equipment — Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa)

发布日期：2009-07

标准范围

ISO 2503:2009规定了不带流量计量装置的单级或两级压力调节器的要求，用于与用于高达300巴（30兆帕）的压缩气体，溶解乙炔、液化石油气(LPG)，甲基乙炔？丙二烯混合物(MP)，和二氧化碳(CO2)，用于焊接、切割和相关工艺。它不包括标称出口压力p2>20巴的压力调节器。ISO 2503:2009还规定了带流量计量装置的单级或两级压力调节器的要求，用于连接气瓶高达300巴（30兆帕）的压缩气体或混合物，以及二氧化碳(CO2)，用于焊接、切割和相关工艺。使用该设备的典型工艺有:钨极惰性气体保护焊（TIG）、金属-电弧惰性气体焊接(MIG)、金属电弧活性气体焊接(MAG)、等离子弧焊、管芯焊丝管芯焊丝焊接和等离子切割。附录B给出了流量控制系统及其流量测量装置的示例。

ISO 2503:2009 specifies requirements for single or two-stage pressure regulators without flow-metering devices for connection to gas cylinders used for

• compressed gases up to 300 bar (30 MPa),
• dissolved acetylene,
• liquefied petroleum gases (LPG),
• methylacetylene？propadiene mixtures (MPS), and
• carbon dioxide (CO₂)_,

for use in welding, cutting and allied processes. It does not cover pressure regulators having a nominal outlet pressure p₂ > 20 bar.ISO 2503:2009 also specifies requirements for single or two-stage pressure regulators with flow-metering devices for connection to gas cylinders used for

• compressed gases or mixtures up to 300 bar (30 MPa), and
• carbon dioxide (CO₂),

for use in welding, cutting and allied processes. Typical processes using this equipment are: tungsten inert-gas arc welding (TIG), metal-arc inert-gas welding (MIG), metal-arc active-gas welding (MAG), plasma arc welding, tubular-cored-wiretubular-cored-wire welding and plasma cutting. Annex B gives examples of flow-control systems and their flow-measuring devices.

标准预览图