Jan 3, 2012 · ISO-7005-1 provides dimensions for PN 20 and PN50 flanges. They are equivlent to ASME class 150 and 300 respectively. In order to make an international standard, ISO needed to include the ASME flange dimensions since they are used in over 50% of industry globally, so PN 20 and 50 were created. But they are just ASME 150 and 300.

Jan 16, 2008 · ISO 5752 mentions PN 20 and 40. This International Standard specifies the basic series of face-to-face or centre-to-face dimensions for two-way metal valves used in flanged pipe systems. Each basic series of face-to-face or centre-to-face dimensions may be used as required with flanges of mating dimensions conforming to IS0 2084 or IS0 2229.

Jan 3, 2012 · Is anybody aware of DIN Flange drilling Template Spec for PN20 and PN50 Flanges? DIN 1092-1 includes all but PN20 and PN50. I'm Designing Valves to meet ASME Class 150, 300 and 600 and they must also meet equivalent PN20, PN50 and PN100. PN100 dimensions in DIN 1092-1 are not the same as ASME...

Jul 9, 2020 · Hi, I have case for dewatering pipeline cost calculation, so now my existing customer had digging for 50metres pit with HDPE PN16 with 315mm OD (SDR11) and have plan to get 200metres more depth, they ask me about : was the pipe still strong enough to go through 250metres (with 6m each flange...