Request Custom Solutions Services Operating Manuals Catalogs Home > Vacuum Technology > CF Flanges > Sealing Elements Sealing Elements Vacuum Technology Copper Sealing Washer (OFHC-Cu)* Single use Pressure range: 1×10-13 hPa Temperature range: -196°C to 200°C According to DIN ISO 2768-mK * Oxygen-free-high-conductivity Data Sheet