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