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Filtration-Tips - Filter Cart Timing Calculation

Filtration Tips

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  October 12, 2010 BUYERS GUIDE  |  VIDEOS  |  WHITE PAPERS  |  BOOK STORE  |  EVENTS  
 
In This Issue
  • The Pros and Cons of Filter Locations
  • Trivia: Silt Sensitive Hydraulic Components
  • Q & A: How Long Should a Filter Cart be Used?
The Pros and Cons of Filter Locations

Using the right filters in the right places a critical component to hydraulic system life. Learn how to protect critical components and avoid damaging mistakes.
FULL STORY

SpectroLNF Q200 Unique Shape Classifier & Particle Counter
Apart from particle counting and automatic type of wear classification into non-metallic, cutting, fatigue, sliding, fibers, water droplets offering images and trending; it also reports dynamic viscosity
Consult with a specialist now

Trivia: Silt Sensitive Hydraulic Components

Test your knowledge and prepare for ICML lubrication and oil analysis certification.

Question: What type of hydraulic component is sensitive to failure by silt lock?
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Reliability. Delivered.
Your choice of combinations. Quality components. Shipped in two weeks. Start customizing your Des-Case fluid handling solution today.
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Q & A: How Long Should a Filter Cart be Used?

"We frequently use filter carts as a part of our contamination control program. Do you have any information about how long we should filter the oil using this type of filtration?"

Off-line filtration is a powerful asset to the lube technician. Without interfering with the operation of the equipment, one can keep the oil clean with full-time off-line filtration, or periodically clean the oil with a portable rig, such as a filter cart.

When using a filter cart, the oil is taken from a dirty sump, filtered and returned to the dirty sump. So the cleanliness of the filtered oil is diluted, so to speak, by the dirty oil residing in the tank. To overcome the dilution effect, the tank volume must pass through the filter approximately seven times to achieve the equivalent of single-pass filtration (where the oil is pumped from one container to another through a filter). For example, if you have a 30-gallon tank and a filter cart that pumps at five gpm, you need to run the cart for 42 minutes to equal single-pass filtration (30 gallons X 7, divided by 5 gpm). If you want to achieve two-pass filtration, you must engage the off-line filter for 82 minutes, or about 1.5 hours.

Use this rule of thumb to manage scheduling activities where portable filtration is rotated from machine to machine within the plant.


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October 26-28 - Chicago, IL

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