This standard specifies the classification, technical requirements, inspection rules, marking, packaging and storage of metal-clad gaskets for flat and convex pipe flanges. This standard applies to metal-clad gaskets for pipe flanges with a nominal pressure PN of 1.0-25.0 MPa and a nominal diameter DN of 10-900 mm.
GB/T 15601-1995 history
2013GB/T 15601-2013 Metallic envelope gaskets for pipe flanges
1995GB/T 15601-1995 Metallic envelope gaskets for pipe flanges