HC8900FKP26H Lubricating Oil Filter Element: A Successful Replacement in Thermal Power Plant

Many power plants using PALL lubricating oil filters have faced the same problem — the filters work well, but they’re expensive and take too long to arrive. When an urgent overhaul comes and there’s no stock, the unit must wait. One 300MW thermal power plant ran into this issue until they tried the HC8900FKP26H interchangeable filter. It worked perfectly and cut both cost and lead time. Here’s what they experienced — a reference for others dealing with the same trouble.

1. Background: The Dilemma of Using Original Filters

This plant’s turbine lubrication system had always used a certain PALL filter model. It seemed fine at first, but over time, two problems became hard to ignore.

High cost — Each unit needs four filters replaced every month. With three units, that’s over a hundred filters a year. Each original one costs over a thousand yuan, pushing the annual expense close to 200,000. The company’s been tightening budgets, and the lubrication system filters became an obvious target.

Long delivery time — The filters are imported, taking six weeks to arrive at best. Sometimes ten weeks if the supplier’s busy. To stay safe, they kept 20 filters in stock all year, tying up storage and cash. Once, during a major overhaul, they ran out and had to borrow filters from another plant, just barely avoiding a delay.

They’d thought about switching to an equivalent, but there was hesitation: What if the filter precision wasn’t enough and metal particles entered the system, damaging bearings? What if the service life was shorter, needing more frequent changes and actually costing more? Those worries kept them waiting for months.

2. Decision and Validation: Careful Every Step

Eventually, the maintenance department decided to test the HC8900FKP26H filter replacement. But they didn’t rush. They ran a three-step verification process to minimize risk.

Supplier screening — They compared five suppliers and didn’t pick the cheapest. They looked for:

• Production qualification: proven experience supplying filters for power plants, and full material reports.
• Project history: delivery to other 300MW+ units and user feedback.
• After-sales support: sample testing and replacement guarantee during trial.

Finally, they chose a supplier with ten years of experience in power plant filters and ordered ten HC8900FKP26H samples for testing.

Lab comparison — The samples went to a lab alongside PALL originals. Three key metrics were tested:

• Filtration accuracy: Both could remove particles above 26μm, and the HC8900FKP26H performed slightly better on 10–25μm particles.
• Pressure drop: Under equal flow, both had an initial pressure drop around 0.02MPa, meaning the oil flow resistance was the same.
• Heat resistance: After four hours at 120°C, the HC8900FKP26H showed no deformation or filter damage, matching the original.

With the lab data clear, the team felt confident — the new filter met the same technical level.

Field trial — They installed four HC8900FKP26H filters in Unit 1’s lubrication system and ran a three-month trial. Two indicators were tracked:

• Oil cleanliness: Weekly oil samples stayed below NAS level 7, same as with the originals.
• Filter pressure drop: Gradually rose from 0.02MPa to 0.15MPa over three months — exactly the same lifespan as the PALL filters.

During the whole trial, turbine vibration stayed steady at 0.03–0.05mm, showing no signs of bearing wear or instability.

3. Results: Lower Cost, Higher Efficiency, Zero Problems

After the trial, all three turbine units switched to the HC8900FKP26H filter replacements. It’s been nearly a year, and the results are clear.

Cost down by 35% — Each HC8900FKP26H costs 35% less than the original, saving enough in three years to buy new auxiliary equipment.

Inventory turnover up 60% — The supplier delivers within a week, so there’s no need to stockpile. The warehouse now keeps just five spares, freeing up cash and space. Reorders that once took six weeks now take two. No more downtime waiting for filters.

Stable operation — After a year, the lubrication systems on all three units have run without any issues. Bearing wear is normal, oil cleanliness meets standards, vibration data stable. The maintenance crew said the new filters install just like the originals — no extra workload.

4. Key Takeaways: Switching Filters the Right Way

Their experience offers practical advice for others considering interchangeable filters for PALL models:

Don’t reject or chase price blindly. Not all substitutes are bad, but cheap ones can use poor filter paper that damages equipment. Choose suppliers with certifications, proven power plant experience, and test data.

Start small, expand later. Do lab tests first, then try a small batch on one unit for a few months. If performance is stable, expand gradually — it keeps the risk low.

Keep monitoring. After switching, continue regular checks on oil cleanliness, filter pressure drop, and vibration. If something goes wrong, talk to the supplier — reliable ones will help analyze or even replace filters for free.

Final Note: Facing the Same Issue? Try HC8900FKP26H

If your plant struggles with high cost and long lead time for PALL filters but worries about replacement quality, the HC8900FKP26H is worth a try. We follow the same validation steps: sample testing, small-batch trial, full technical support throughout.

And if any failure occurs during the trial due to filter quality, we’ll fully cover the loss. Contact us now for a free material report and power plant case reference — test safely, save costs, and keep your equipment running without risk.

E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229

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