| Filter Media | The media that we offer in the Donaldson P550251 is the most cost effective media for cleaning and maintain your hydraulic fluids. Our Cellulose filters are built using natural fibers that are excellent when you require filtration for low pressure applications. The typical filtration rating for Cellulose filters is between 15 and 40 microns. If your system requires cleaner hydraulic fluids, we recommend using hydraulic filters that employ synthetic media.
| | Filter Seal | Have you ever had to cold-start your equipment? If yes, then a Buna O-ring is an excellent choice for your hydraulic filter. Buna O-rings provide superior resistance to tear and abrasion during those cold-flow applications and they are the perfect ring when you decide to marry that cold-flow with petroleum products.
Buna O-rings are recommended for: - General purpose sealing
- Petroleum oils and fluids
- Cold Water
- Silicone greases and oils
- Di-ester base lubricants (MIL-L-7808)
- Ethylene glycol base fluids (Hydrolubes)
- Operating temperature -45°f to 225°f
A Word on Quality
At Hydrafil we insist on providing our customers with the highest quality of filtration products. As a result, all of our replacement elements are manufactured right here in the United States, under the most rigorous quality standards. Additionally, all of our filter elements carry six ISO Standards and we fully guarantee all of our products. | |
| Filtration Efficiency | 10 μ |
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| Collapse Rating (psid) | 100 |
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| ISO 2942 | Fabrication & Integrity Test |
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| ISO 2943 | Material Compatibility with Fluids |
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| ISO 3724 | Flow Fatigue Characteristics |
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| ISO 3968 | Pressure Drop vs. Flow Rate |
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| ISO 16889 | Multi-pass Performance Testing |
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