Single and double cartridge seals are accessible in pre-assembled designed to simplify their installation process and also to reduce their fixing time. Offered range of seals are installed with the help of set tabs that are removed post their fixing. The design of cartridge seals contains multiple sealing points like seal face, sleeve O ring, stationary O ring and seal gland gasket. Offered range of mechanical seals has separate parts that can be assembled independently. Based on application type, thee seals can be used at specific operating pressure and working temperature range. Operating speed and shaft dimension of this range of pump seals also vary as per application type.