Application | Recommended Sizing ( microns) |
Comments |
Cooling Tower Bleed-off / Blowd | 5-55 | |
Closed loop filtration | 5-55 | |
Tower Basin Cleaning / Sweeper Jet | 5-55 | |
Cartridge replacement | 2-55 | |
Protection of Heat exchangers | 5-55 | Consult with manufacturer |
Invasive Species | 40-70 | For larva removal |
Membrane Protection | 70-300 | |
Coal Ash | 20-50 | depends on process treatment train |
A good pump is designed to operate for many years. Unfortunately, pumps frequently come out of service due to product leakage from mechanical seal failure.
Contact seals commonly used on pumps wear at the point of contact or groove the shaft, rendering them ineffective in a short period of time. This allows lubrication loss and contamination ingress into the bearing housing. The resulting bearing damage causes axial movement and shaft deflection, which in turns causes the mechanical seal to fail. The end result is catastrophic bearing failure.
A properly designed PEP Filtration system installed prior to the pump will provide protection to the seal. As a general rule of thumb, PEP Filters recommends that a filtration level from 100-200 micron will provide the necessary level of protection to the pump. PEP recommends that one consults with their pump manufacturer to determine the proper filtration degree to provide pump seal protection.