The type ED945 - ED950 is a dual-pressurized, liquid-lubricated double cartridge mechanical seal are designed for top entry, bottom entry & side entry drives mixing and agitating equipment. This seal specially designed for any mixed and pressurized liquid in vessel with top entry agitators where no leakage of highly application or fluids to the environment can be tolerated. Complete pre-assembled tested unit ready for installation. This seal shows good performance in high vacuum conditions. A value-engineered design, high level of standardization and broad material options make this seal a cost-efficient solution for general-duty applications in the chemical and pharmaceutical industry. The seal is suitable for operation in potentially explosive atmospheres. Depending on individual explosion protection requirements, the seal operating limits may differ from the values given in the parameters section. Furthermore, additional monitoring devices may be required.