---
title: Donaldson Hy-Pro Lube & Hydraulic Filtration Industry Blog | coalesce technology
description: coalesce technology | Learn about hydraulic fluid, lube oil, diesel fuel and industrial fluid contamination, filtration and conditioning on the Donaldson Hy-Pro blog.
---

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###### 5 min read

### [Dynamic Filter Efficiency](https://www.hyprofiltration.com/blog/dynamic-filter-efficiency)

 By [Hy-Pro Marketing](https://www.hyprofiltration.com/blog/author/hy-pro-marketing) on Thu, Mar. 18, 2021

# Dynamic Filter Efficiency

## What is Dynamic Filter Efficiency?

### Dynamic Filter Efficiency matches filter testing with real-life conditions. 

All hydraulic and lube systems have a critical contamination tolerance level that is often defined by, but not limited to, the most sensitive system component such as servo valves or high speed journal bearings. Defining the ISO fluid cleanliness code upper limit is a function of component sensitivity, safety, system criticality and ultimately getting the most our of hydraulic and lube assets. 

###### Topics: [varnish in hydraulic oil](https://www.hyprofiltration.com/blog/topic/varnish-in-hydraulic-oil) [vacuum dehydration](https://www.hyprofiltration.com/blog/topic/vacuum-dehydration) [mining](https://www.hyprofiltration.com/blog/topic/mining) [fluid samples](https://www.hyprofiltration.com/blog/topic/fluid-samples) [total systems cleanliness](https://www.hyprofiltration.com/blog/topic/total-systems-cleanliness) [metal analysis](https://www.hyprofiltration.com/blog/topic/metal-analysis) [coalesce technology](https://www.hyprofiltration.com/blog/topic/coalesce-technology) [cleanliness](https://www.hyprofiltration.com/blog/topic/cleanliness) [COD](https://www.hyprofiltration.com/blog/topic/cod) [lube oil](https://www.hyprofiltration.com/blog/topic/lube-oil) [turbine oil](https://www.hyprofiltration.com/blog/topic/turbine-oil) [glass media](https://www.hyprofiltration.com/blog/topic/glass-media) [demulsibility](https://www.hyprofiltration.com/blog/topic/demulsibility) [servo valves](https://www.hyprofiltration.com/blog/topic/servo-valves)

###### 1 min read

### [Bearing and Component Life Extension](https://www.hyprofiltration.com/blog/bearing-component-life-extension)

 By [Hy-Pro Marketing](https://www.hyprofiltration.com/blog/author/hy-pro-marketing) on Thu, Mar. 04, 2021

# Extending Bearing and Component Life and Saving Money 

Improving fluid cleanliness means reduced downtime, more reliable equipment, longer fluid life, and fewer maintenance hours. In addition, it also means reduced component replacement and repair expenses. 

###### Topics: [EHC](https://www.hyprofiltration.com/blog/topic/ehc) [hydraulic filters](https://www.hyprofiltration.com/blog/topic/hydraulic-filters) [Gearbox filtration](https://www.hyprofiltration.com/blog/topic/gearbox-filtration) [vacuum dehydration](https://www.hyprofiltration.com/blog/topic/vacuum-dehydration) [filter housing sizing](https://www.hyprofiltration.com/blog/topic/filter-housing-sizing) [oil darkening](https://www.hyprofiltration.com/blog/topic/oil-darkening) [mining](https://www.hyprofiltration.com/blog/topic/mining) [fluid samples](https://www.hyprofiltration.com/blog/topic/fluid-samples) [filtration](https://www.hyprofiltration.com/blog/topic/filtration) [Fluid Analysis](https://www.hyprofiltration.com/blog/topic/fluid-analysis) [total systems cleanliness](https://www.hyprofiltration.com/blog/topic/total-systems-cleanliness) [metal analysis](https://www.hyprofiltration.com/blog/topic/metal-analysis) [fluid transfer](https://www.hyprofiltration.com/blog/topic/fluid-transfer) [fluid analysis guide](https://www.hyprofiltration.com/blog/topic/fluid-analysis-guide) [coalesce technology](https://www.hyprofiltration.com/blog/topic/coalesce-technology) [filter cart](https://www.hyprofiltration.com/blog/topic/filter-cart) [gearbox](https://www.hyprofiltration.com/blog/topic/gearbox) [indianapolis](https://www.hyprofiltration.com/blog/topic/indianapolis) [lube oil](https://www.hyprofiltration.com/blog/topic/lube-oil) [turbine oil](https://www.hyprofiltration.com/blog/topic/turbine-oil) [demulsibility](https://www.hyprofiltration.com/blog/topic/demulsibility)

###### 3 min read

### [Understanding ISO Codes](https://www.hyprofiltration.com/blog/understanding-iso-codes)

 By [Hy-Pro Marketing](https://www.hyprofiltration.com/blog/author/hy-pro-marketing) on Thu, Feb. 25, 2021

# ISO Cleanliness Codes Explained

The ISO Cleanliness Code (per ISO4406-1999) is used to quantify particulate contamination levels per milliliter of fluid at 3 sizes - 4µ, 6µ, and 14µ. It is expressed in 3 numbers (example 19/17/14) where each number represents a contaminant level code for the correlating particle size. The code includes all particles of the specified size and larger. For a detailed breakdown and a handy ISO code cheat sheet, see our [ISO Code Guide & Cheat Sheet](https://www.hyprofiltration.com/blog/iso-4406-cleanliness-codes)![Example of an ISO cleanliness code showing particle counts in hydraulic fluid at 4, 6, and 14 micron sizes.](https://www.hyprofiltration.com/hs-fs/hubfs/Screen%20Shot%202021-02-23%20at%202.50.37%20PM.png?width=283&name=Screen%20Shot%202021-02-23%20at%202.50.37%20PM.png)It is important to note that each time a code increases, the quantity range of particles is doubling. Inversely, as a code decreases by one the contaminant level is cut in half. 

###### Topics: [hydraulic fluid](https://www.hyprofiltration.com/blog/topic/hydraulic-fluid) [dirt](https://www.hyprofiltration.com/blog/topic/dirt) [hydraulic filters](https://www.hyprofiltration.com/blog/topic/hydraulic-filters) [Gearbox filtration](https://www.hyprofiltration.com/blog/topic/gearbox-filtration) [vacuum dehydration](https://www.hyprofiltration.com/blog/topic/vacuum-dehydration) [filter housing sizing](https://www.hyprofiltration.com/blog/topic/filter-housing-sizing) [plastic injection molding manufacturer](https://www.hyprofiltration.com/blog/topic/plastic-injection-molding-manufacturer) [oil darkening](https://www.hyprofiltration.com/blog/topic/oil-darkening) [mining](https://www.hyprofiltration.com/blog/topic/mining) [fluid samples](https://www.hyprofiltration.com/blog/topic/fluid-samples) [total systems cleanliness](https://www.hyprofiltration.com/blog/topic/total-systems-cleanliness) [metal analysis](https://www.hyprofiltration.com/blog/topic/metal-analysis) [filter performance](https://www.hyprofiltration.com/blog/topic/filter-performance) [paper mill](https://www.hyprofiltration.com/blog/topic/paper-mill) [fluid transfer](https://www.hyprofiltration.com/blog/topic/fluid-transfer) [filters](https://www.hyprofiltration.com/blog/topic/filters) [hydraulic valve](https://www.hyprofiltration.com/blog/topic/hydraulic-valve) [coalesce technology](https://www.hyprofiltration.com/blog/topic/coalesce-technology) [filter cart](https://www.hyprofiltration.com/blog/topic/filter-cart) [cleanliness](https://www.hyprofiltration.com/blog/topic/cleanliness) [COD](https://www.hyprofiltration.com/blog/topic/cod) [hydraulic oil](https://www.hyprofiltration.com/blog/topic/hydraulic-oil) [gearbox](https://www.hyprofiltration.com/blog/topic/gearbox) [duplex high-pressure](https://www.hyprofiltration.com/blog/topic/duplex-high-pressure) [compressor](https://www.hyprofiltration.com/blog/topic/compressor) [filter elements](https://www.hyprofiltration.com/blog/topic/filter-elements) [lube oil](https://www.hyprofiltration.com/blog/topic/lube-oil) [turbine oil](https://www.hyprofiltration.com/blog/topic/turbine-oil) [desiccant](https://www.hyprofiltration.com/blog/topic/desiccant) [demulsibility](https://www.hyprofiltration.com/blog/topic/demulsibility)

###### 1 min read

### [Removing Water from Diesel; Hy-Pro's Coalescing Technology](https://www.hyprofiltration.com/blog/removing-water-from-diesel-hy-pros-coalescing-technology)

 By [Hy-Pro Marketing](https://www.hyprofiltration.com/blog/author/hy-pro-marketing) on Wed, Mar. 25, 2020

[![](https://www.hyprofiltration.com/hubfs/Thumb%20Nail.jpg) ](https://www.hyprofiltration.com/blog/removing-water-from-diesel-hy-pros-coalescing-technology)

In this Video we provide a brief description and demonstration of Hy-Pro's signature coalescing technology found in our FCLCOD and COT model lines.

###### Topics: [filters](https://www.hyprofiltration.com/blog/topic/filters) [coalesce technology](https://www.hyprofiltration.com/blog/topic/coalesce-technology) [fuel](https://www.hyprofiltration.com/blog/topic/fuel) [cleanliness](https://www.hyprofiltration.com/blog/topic/cleanliness) [COD](https://www.hyprofiltration.com/blog/topic/cod) [video](https://www.hyprofiltration.com/blog/topic/video) [contaminination](https://www.hyprofiltration.com/blog/topic/contaminination) [turbine oil](https://www.hyprofiltration.com/blog/topic/turbine-oil)

###### 3 min read

### [[Video] Water Contamination and Removal Methods](https://www.hyprofiltration.com/blog/bid/347342/video-water-contamination-and-removal-methods)

 By [Scott Howard](https://www.hyprofiltration.com/blog/author/scott-howard) on Mon, Jun. 02, 2014

 

 Do you know what the 3 different types of water contamination are? What about the 4 methods to remove water from your fluid? Watch our short video for a thorough explanation of each.

###### Topics: [hydraulic fluid](https://www.hyprofiltration.com/blog/topic/hydraulic-fluid) [water](https://www.hyprofiltration.com/blog/topic/water) [vacuum dehydrator](https://www.hyprofiltration.com/blog/topic/vacuum-dehydrator) [coalesce technology](https://www.hyprofiltration.com/blog/topic/coalesce-technology) [headspace dryer](https://www.hyprofiltration.com/blog/topic/headspace-dryer) [video](https://www.hyprofiltration.com/blog/topic/video) [contaminination](https://www.hyprofiltration.com/blog/topic/contaminination) [filter elements](https://www.hyprofiltration.com/blog/topic/filter-elements)

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