Chinese Standard: GB/T 9124.1-2019

Steel pipe flanges—Part 1:PN designated

GB/T 9124的本部分规定了PN系列钢制管法兰和法兰盖的类型与参数、型式与尺寸、技术要求、试验、检验与验收、标志与标记、供货要求。
<br/> 本部分适用于公称压力PN2.5~PN400、公称尺寸DN10~DN4000的钢制管法兰和法兰盖。

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