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Read the Fyrquel Compatibilty Guide
Fyrquel Fire-Resistant Fluid Maintenance "Understanding Acid Formation"
What are Fyrquel Fluids?
Why should I use a fire resistant fluid?
Are Fyrquel phosphate ester fluids biodegradable?
Are all phosphate ester fire resistant fluids in the same general category?
What are the main types of fire resistant fluids, and how do they function?
Do all synthetic FR fluids have equivalent fire resistance performance?
How should Fyrquel phosphate ester fluids be handled?
Does the self-extinguishing property rely on additives or change during service?
How do you recommend maintaining operating Fyrquel fluid in good condition?
How dry should the operating fluid be kept?
What is the recommended way to remove water from your fluid?
What is considered excessive operating fluid temperature?
What is the recommended way to maintain the acid number of your fluid?
What is the normal pH of your fluid?
What is the color value of your fluid?
When should I replace my operating fluids?
What are Fyrquel Fluids?
Fyrquel fluids are synthetic non aqueous triaryl phosphate ester fluids used as fire resistant fluids in industrial applications worldwide.
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Why should I use a fire resistant fluid?
Using a fire resistant fluid reduces the risk of a catastrophic fire and saves lives.
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Are Fyrquel phosphate ester fluids biodegradable?
Yes. They are rated easily biodegradable.
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Are all phosphate ester fire resistant fluids in the same general category?
No. There is a difference depending on whether used in industrial or commercial aviation applications. Two distinct different types of phosphate esters are used. Triaryl phosphate esters—like Fyrquel fluids—are the choice for industrial applications.
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What are the main types of fire resistant fluids, and how do they function?
There are two main types of fire resistant fluids. The first fluid type is water based—sometimes referred to as “aqueous fluids"—and this type relies on water content for fire resistance. The second type is synthetic non aqueous fluids, which rely on chemical composition for fire resistance. Fyrquel fluids are in this second category.
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Do all synthetic FR fluids have equivalent fire resistance performance?
No. Fire resistance performance differs significantly. Fyrquel triaryl phosphate esters have superior fire resistance since they are self-extinguishing and difficult to ignite. On the other hand, non phosphate ester type fluids like Polyol ester (POE) and polyol ether aka polyalkylene glycols (PAG) synthetic fluids continue self-sustained burning once ignited. View a short video demonstration showing the self-extinguishing key advantage of Fyrquel triaryl phosphate ester fluids.
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How should Fyrquel phosphate ester fluids be handled?
Consult Supresta’s MSDS handling guidelines, which are similar to those recommended for all other types of hydraulic fluids.
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Does the self-extinguishing property rely on additives or change during service?
No. The self extinguishing property is inherent to phosphate esters; does not rely on additives; and remains unchanged during service unaffected by filtration.
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How do you recommend maintaining operating Fyrquel fluid in good condition?
We recommend keeping the system as dry as possible, avoiding unnecessary high temperature conditions, and most importantly, maintaining a low acid number. Fullers Earth, Selexsorb® GT, and other acid absorbing materials are used for this purpose. Contact your Supresta representative for an individual recommendation.
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How dry should the operating fluid be kept?
We recommend a maximum limit of 0.10-0.20 % or 1000-2000 ppm.
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What is the recommended way to remove water from your fluid?
Phosphate ester is a heavier than water fluid and normally has very low miscibility with water. Contact your Supresta representative for an individual recommendation.
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What is considered excessive operating fluid temperature?
The maximum recommended temperature is 160 º F (71º C). Typically, users keep Fyrquel fluids within 120-135 º F (49-57 º C) range setting a 140 F (60 º C) alarm limit.
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What is the recommended way to maintain the acid number of your fluid?
It is much better to maintain fluid at a low acid number than to allow the acid number to increase up to a set level and then try to reduce it. Filtration will not normally be effective once fluid acidity exceeds 0.20 TAN. Most Fyrquel users keep their fluids < 0.10 TAN.
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What is the normal pH of your fluid?
Since phosphate esters are not miscible with water, it is impossible to measure pH accurately in phosphate ester fluids.
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What is the color value of your fluid?
New fluid has an ASTM of <1.5 and an APHA color < 300. A darker color does not indicate a reduction in operational quality, but since could be an indicator of localized overheating, contact your Supresta representative for an individual recommendation.
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When should I replace my operating fluids?
We recommend that users replace critical operating fluids in advance of reaching unsatisfactory conditions rather than risking unit reliability problems and to schedule the work during routine maintenance outages.
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A video clearly demonstrates how Fyrquel® fluids offer superior fire protection compared to other fluids.
Supresta is happy to consult with you on critical hydraulic fluid decisions — including fluid selection and maintenance.
For more information, please contact us.
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