DS EN 1514-3:1997
DS EN 1514-3:1997 Flanges And Their Joints - Dimensions Of Gaskets For Pn-Designated Flanges - Part 3: Non-Metallic Ptfe Envelope Gaskets Defines the dimensions and marking of IBC (inside bolt circle) PTFE non-metallic envelope gaskets for use with flanges complying with EN 1092 Parts: 1, 2, 3 and 4 for PN 6 up to and including PN 63, u