Mechaflex R.S.T. P878

Single 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.

R.S.T Series

The R.S.T Mechanical seals are known for its design which were made using ProEight’s in-house FEA programs, SIGMA-FEA and CELC-FEA combined with ANSYS

These software programs analyze combined seal distortion due to pressure, temperature, stress distortion and face loadings. Steady-state and transient conditions coupled with various possible sealing environments gave a clear overview of the mechanical seals’ performance.

Design Features

High flow pattern and distributed flush system
Uniform-load Multispring compression unit
RST Optimized Seal Face Design
Emission Restrictive Throttle Bushing
Low-temperature including face (ARCAF)®
(Subject to design requirements & compatibility)
Bolted Auxiliary Gland