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  • Micron size guide
    Application Recommended
    Sizing ( microns)
    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

Pump Seal Protection

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.        


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