Unpressurized Cartridge Seal

The P878 series is a dual unpressurized cartridge seal intended to provide an excellent sealing performance for pumps. As one of the members of RST Mechanical Seals, P878 is designed to operate in a wide range of process fluids. P878 particularly exhibits high performance in the operation of critical process fluids of lubrication fluids, aqueous solutions, chemicals, light hydrocarbons and water services. The improvements in design reliability and robustness are made possible by the utilisation of sophisticated Finite Element Analysis (FEA) Engineering Software. These features are further verified by the usage of ProEight’s high-end testing equipment, the patented mechanical seal static tester – AccuTEST and mechanical seal dynamic tester – AccuDYN (Patent Pending).