Home > Vacuum Technology > ISO-K Flanges > ISO-K Blind Flanges ISO-K blind flanges ISO-K blind flange made of stainless steel (1.4301) or aluminium (3.2315) Pressure range: 1×10-8 hPa with O-ring; 1×10-9 hPa withISO-K light metal sealing ring Temperature range: -196°C to 300°C according to DIN ISO 2768-mK Data sheet