Fabrication and inspection method for high pressure urea equipment—Part 6:Helium leakage test method for urea high pressure equipment
全国化工机械与设备标准化技术委员会(SAC/TC 429)
GB/T 25151的本部分规定了尿素装置中尿素高压设备的衬里层焊接接头、换热管与管板焊接接头有无穿透性缺陷的氦渗漏试验方法。
本部分适用于尿素合成塔、尿素CO2汽提塔、尿素高压洗涤器、尿素高压冷凝器等尿素高压设备的氦渗漏试验。
其他化工设备的氦渗漏试验可参照本部分执行。
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