... 3. Speed: 25m/s Mechanical SealsCartridge seals, shaft seals HF670,675,676,680 Applications:Petrochemicals, Oil refining and cooling, The mediums which are ... oil, Organic solvent, hot Water and other weak corrosive solutions. Feature:1) Rotary bellows mechanical seal of ... standard. Low Temperature range Metal Bellows Mechanical Seals, Cartridge seals, shaft seals HF670,675,676,680