2 min read

Oil Vacuum Dehydrators: Managing Water in Rolling Mill Lubricating Oil

By Aaron Hoeg on Thu, Apr. 29, 2021

Managing Water in Rolling Mill Lubricating Oil

In our last post, Improving Rolling Mill Oil with Vacuum Dehydration, we discussed how the demulsibility (ability of the oil to separate from water) of oil is an important characteristic that greatly influences the effectiveness of the lubricant and how a loss of demulsibility can result in poorly lubricated bearings, unplanned downtime and premature fluid replacement. 

Topics: hydraulic fluid contamination water Water Contamination rolling mill lubricating oil vacuum dehydrator VUD
2 min read

Improving Rolling Mill Lubricant Oil with Vacuum Dehydration

By Aaron Hoeg on Thu, Apr. 22, 2021

Benefits of Vacuum Dehydration for Rolling Mill Lubricant Oil

Steel mills typically use lubricants with high demulsibility for rolling mill back-up roller bearings and chocks since relatively high levels of water contaminate the oil from quenching and descaling processes. These rolling mill lubricant oils may be known as Morgoil as they are commonly used on Morgan rolling mill systems.

Topics: hydraulic fluid rolling mill lubricating oil vacuum dehydrator VUD
2 min read

The Dollars and Sense of Fluid Cleanliness

By Brad Bainbridge on Thu, Apr. 08, 2021

The Dollars and Sense of Fluid Cleanliness

The old phrase will always stand true, "A penny saved is a penny earned." When it comes to businesses and their pennies, every penny counts. When problems during the production and manufacturing process are fixed, people will say "pennies well spent." So, if pennies are so important, then what about dollars? What about thousands, or hundreds of thousands of dollars? What about millions of dollars? In today's production and manufacturing economy, these kinds of numbers are game-changing.

Topics: vacuum dehydrator fluid contamination bearings
3 min read

Getting to Know Demulsibility

By Brad Bainbridge on Thu, Mar. 25, 2021

Demulsibility

What is Demulsibility?

Demulsibility is the ability of oil to separate from water. Oil and water naturally separate because like molecules attract each other. Oil sticks with oil, water sticks with water. Oil is "hydrophobic", or "afraid of water," which is a benefit when it comes to fluids like turbine oil. 

Topics: varnish in hydraulic oil varnish in turbine oil contamination water in oil dirt Phosphate Ester diesel engine maintenance steel mills vacuum dehydration rolling mill lubricating oil filter housing sizing micro-dieseling thermal event ISO 4406 vacuum dehydrator fluid samples oil analysis metal analysis paper mill hydraulic pump samples COD duplex low-pressure gearbox contaminination hydraulic duplex high-pressure cellulose media filter elements filter comparison aluminum refinery lab
3 min read

[Video] Water Contamination and Removal Methods

By 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.
Water Contamination
Topics: hydraulic fluid water vacuum dehydrator coalesce technology headspace dryer video contaminination filter elements
4 min read

What is a Vacuum Dehydrator?

By Scott Howard on Mon, Sep. 30, 2013

If the hydraulic, lubricating, compressor or gear oil you use is not made of a water base in formulation , then water is considered a contaminant and must be recognized and managed. 

There are three types of water in a typical system: free water , emulsified water and dissolved water. The water saturation point of most oil, that point above which water is in a free form, is 200-400ppm, depending on age and condition. 

Using 100ppm for an upper water limit for most systems using mineral base oils, this means all free and emulsified water and a significant portion of dissolved water must be removed.

A vacuum dehydrator is one of the very few methods to remove dissolved water from oil. Let's take a look at these three types of water in your system. It will give you a solid foundation for how the vacuum dehydrator works in the end.

Topics: water Water Contamination vacuum dehydrator contaminination VUD
1 min read

Improving Rolling Mill Lube Oil Performance and Useful Life - Part 3: Solution

By Aaron Hoeg on Mon, Mar. 18, 2013

VUD Vac-U-Dry Vacuum DehydratorAt the end of Part 2, we discussed the winning nature of vacuum dehydration. If you missed Part 1 in the series, you can find it here

Did you know that hydrogen is the friendliest molecule - meaning that it is most likely seeking partners to attach to? Similarly, the suspended particles in oil actively look for particles to join forces, so they pair with the water. 

This particulate contamination is the catalyst guilty of continuing the degradation of the oil and the increase of emulsified water. The more water there is, the more oxidation that occurrs. This also increases various acids that form as the molecules break down. These acids attack seals, hoses, pumps and metal.

Topics: contamination iso cleanliness codes steel mills rolling mill lubricating oil vacuum dehydrator
2 min read

Improving Rolling Mill Lube Oil Performance and Useful Life - Part 2: Prevention

By Aaron Hoeg on Fri, Feb. 22, 2013

steel mills and oil performance

If you're just tuning in and didn't catch the first part of our steel mill and lube oil series, click here.

When we left off, we just determined how the high levels of emulsified water and high particulate contamination levels work together to cause bearing failure and reduce oil life. So, how do we prevent this expensive combination from happening? We're glad you asked!

Topics: contamination iso cleanliness codes steel mills rolling mill lubricating oil oil mills vacuum dehydrator
2 min read

Improving Rolling Mill Lube Oil Performance and Useful Life - Part 1: Quality

By Aaron Hoeg on Fri, Feb. 15, 2013

steel mill equipment and lube oil

Premium oils keep steel mills running. It's crucial to protect their quality in order to keep the mills fully functioning. 

In both hot and cold steel mill production, high-demulsibility lubricant is used for backup roller bearing lubrication. Some of these oils are referred to as SD, which stands for super-demulsibility. Not surprisingly, these SD oils are a premium product and come at a premium price. If a manufacturer wants to invest in these big-ticket oils, they obviously want to go to great lengths in order to keep them clean and fully functioning.

Join us for this three-part series as we take an in-depth look at improving rolling mill lube oil performance and useful life.

Topics: contamination iso cleanliness codes steel mills vacuum dehydrator
2 min read

Vacuum Dehydrator VUD: Real-World Results

By Aaron Hoeg on Mon, Sep. 10, 2012

Hy-Pro Vacuum Dehydrators Improve Mill Reliability

 We Hy-Pro Vacuum Dehydrators already know that maintaining low levels of water in rolling mill lubricating oil can help improve uptime, extend oil life, prevent bearing failures and increase profitability. But, what about an actual example of how a vacuum dehydrator has improved mill reliability?

Topics: vacuum dehydrator total systems cleanliness

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