Compact Economical Cartridge Double Mechanical Seal for Agitators and Reactors. Design Incorporate with location of Bearings very close to the Seal. These seals are specially designed for any mixed and pressurized liquid in a Vessel with Top Entry Agitators where no leakage in Process Gas OR Fluids to the Environment can be tolerated. Complete Pre-assembled Tested Unit ready for installation. These seals are used for Exclusive Solid Seal Faces, Stationary Seats, thus Lowest Level of Seal Face distortion when Exposed to Compressive Load and Thermal Pressure.