Oil Filtration

Bypass filtration (also called offline oil filtration) is where a proportion of the oil flow is filtered to a considerably better degree than in a full-flow filtration system before traveling back to the oil sump. A bypass filter is sometimes referred to as a secondary filter. Bypass filters working in a separate circuit do not supply the engine with clean oil directly. A bypass filter improves oil cleanliness.

A bypass filter is usually a much finer solid particle filter to capture smaller solid particles than the full-flow filtration system. Because it has higher filtration efficiency, it will have a much lower flow rate than a full-flow filter, particularly when the oil is cold. A bypass filtration system is designed to improve the overall cleanliness of the oil without compromising the flow rate to the engine. Bypass filtration systems are excellent solutions for removing solid particles.

Do you need to separate solids from your lube oil? The high centrifugal driving force of the IOW Group centrifugal bypass oil filter is an excellent solution for separating suspended solid matter (soot, sludge, dirt, wear metals, or any solid contaminants) from lube oils, gear oils, or hydraulic oils. Such filters do not require a filter medium for filtration. Gravitational force is replaced with centrifugal force. The IOW Group bypass oil centrifuge utilizes bowl discs to increase separation surface area. 

Combination filtration is where both full-flow filtration and bypass technology are utilized in filtration. A combination filter is sometimes referred to as a two-stage filter.

The best oil filtration method combines the full-flow oil filters and centrifugal bypass oil filtration. To learn more about a better oil filtration process, visit our Bypass Oil Filtration is the answer! blog.

Full-flow filtration is where all of the oil pump output is filtered before going to the engine. The full-flow filter provides essential engine protection. The full-flow filter must have adequate dirt-holding capacity to capture and retain damaging contaminants to achieve the required service and maintenance intervals.

A better oil filter aids in cleaner oils. To learn more about improving your filtration process (filter aid), visit our Full-flow Oil Filter — a one-system approach is not enough! blog.

A hydraulic oil filtration system supports long-term equipment operation by reducing the probability of oil-related failures or unscheduled maintenance due to contaminated hydraulic oil. Controlling and removing undesired contamination is a factor in hydraulic oil reliability. When contamination invades oil, the protection of the rotating components is placed at risk, and equipment performance is jeopardized.

Hydraulic Oil Filtration Skid Systems

Separtor Spares & Equipment provides oil filtration systems to remove harmful contamination from hydraulic oil. The systems provide continuous and persistent oil filtration service and add additional benefits during shutdown by quickly preparing the hydraulic oil for equipment startup. They are fully automated, self-contained systems ranging from 10 GPM to 30 GPM.

Kaydon Filtration’s main types of Hydraulic Oil Filtrtion Systems:
Kaydon KP10-2-S-V636 rated for 10 GPM
Kaydon KP30-001-V636 rated for 30 GPM

A lube oil conditioner is a system designed to maintain lube oil within the specifications established by engine or turbine manufacturers for water and solid particle contamination, effectively extending the life of the lubricating oil.

Turbine Oil Conditioning Systems

Separator Spares & Equipment provides oil conditioning systems with advanced, pleated coalescing and separating technology to quickly remove water and solid particulate contamination from engine lube oil or turbine oil-lubricated equipment. Each self-contained system includes an easy-to-use control panel with a PLC controller for fully automated operation and built-in process diagnostics. Systems are available to suit any size oil reservoir and systems from 1 GPM to 100 GPM capacity. These systems bring predictability to your maintenance schedules, enhance long-term equipment operation, and significantly reduce the likelihood of equipment failure and unscheduled maintenance. 

Kaydon Filtration’s main types of Turbine Oil Conditioning Systems:
Kaydon Turbo-TOC KL10S2 rated for 10 GPM
Kaydon Turbo-TOC KL30S2 rated for 30 GPM
Kaydon Turbo-TOC KL60S2 rated for 60 GPM
Kaydon Turbo-TOC KL100S3-N rated for 100 GPM
Kaydon Turbo-TOC KLP Series Portable Turbo-TOC Turbine Oil Conditioning System rated for 3 GPM or 5 GPM

A vacuum dehydration system uses the vacuum dehydration-distillation method to remove water and solid particles from industrial oils. These oil pressure filtration systems are excellent purification solutions for high-viscosity oils and poor water-shedding oils. The vacuum dehydration-distillation method systems are continuous duty, offline (kidney loop) oil purification systems for industrial oil reservoirs used in paper mills, steel mills, mining, refineries, and power generation.

Keep Industrial Oils Free From Water and Particulate

Vacuum dehydration oil conditioning systems keep industrial oils free of water and particulate contamination to achieve long-term, predictable, and profitable performance. Kaydon Filtration’s distillation technology’s principle is to separate water from industrial oil by removing it in the form of water vapour rather than in the liquid state. In this way, water can be removed from industrial oil without regard to the degree of emulsification. This technology allows for water removal in a number of liquids and applications that cannot be addressed through coalescing. 

Separator Spares & Equipment provides a true vacuum distillation system (not mass transfer) capable of removing water and particulate from higher viscosity and surfactant-laden lubricating oils. Systems with water removal capabilities to below 70 PPM total water are sized to suit any oil reservoir. They are fully automated, self-contained systems ranging from 5 GPM to 30 GPM.

Kaydon Filtration’s main types of Vacuum Dehydration Oil Conditioning Systems:
Kaydon 858-600, 858-1200, 858-1800 removes water and particulate contamination from lube, hydraulic, and transformer oils
Kaydon 858-300 MINI-VAC removes water and particulate contamination from lube and hydraulic oils
Kaydon 858-300-HIVAC removes water, particulates, and gases from transformer oils and sour seal oils
Kaydon 858-300-EHC removes water, acids, and particulates from phosphate ester fluids
Kaydon 929-300 removes damaging water from lube oil, turbine oil, paper machine oil, gear oil, and hydraulic oils down to 40 PPM water content

Varnish is the hidden enemy of turbine oil lube systems. A continuously functioning varnish removal system must dislodge varnish build-up and block future attacks. A varnish removal system provides varnish stripping to the extent that varnish-related issues, such as sticking valves, oil flow restrictions, reduction in heat exchanger efficiency, accelerated rotating component wear, and oil degradation, will no longer be detrimental to the turbine lubrication system. 

Power generation equipment and hydraulic systems have seen an increase in varnish-related issues due to higher operating temperatures, smaller reservoirs, and the creation of electrostatic discharge. Successful removal and elimination of varnish in the turbine lubricant oil is essential to operating efficient, cost-effective systems.

The Kaydon KPV-10 Varnish Removal System for turbine lubrication is pictured on the right. Operating at a maximum flow rate of 10 GPM, the Kaydon KPV-10 varnish removal system can clean out a turbine lube oil system with a pre-existing varnish problem or be installed in new installations where the varnish problem can be blocked. The system is a simple installation with easy-to-understand and easy-to-operate controls. The filtration of the varnish producing sub-micron solid particles is made possible by the Kaydon Filtration technology K1100 prefilter and Kaydon K4100 polishing element.

Varnish Free Lube System

Separator Spares & Equipment supplies varnish removal systems that provide efficient sub-micron filtration of varnish-forming components. These systems can be installed in new installations to clean out a turbine lube oil system with a pre-existing varnish problem or to prevent varnish from starting.

When sizing an offline oil filter (bypass filter) the following basic information about the oil system should be provided:

• Oil volume in the system or tank
• Oil type (ISO VG)
• Oil Temperature (normal operation and ambient temperature)
• Oil contamination problems:
  – Particles
  – Oil degradation products, sludge, and varnish
  – Water (ingress or accumulated)
• Application
• Associated equipment and/or engine model number
• Machine operation hours per day
• Available power supply