These type Cartridge Seal is generally used in chemicals, solvents, hydrocarbons & petrochemicals. Materials Seal Faces: Si Carbon TC Vs Ceramic TC Si Secondary Seals: Viton PTFE GFT Niton Metal Parts: SS-304, SS-316, SS-316L, Hastelloy Operating Limits Shaft Dia: 25mm to 100mm Pressure: 15 Bars (max) Temperature: -40°C to +180°C Speed: 2900 rpm (max)