Built to fit the filter housings you already run
DENAFILTER leaf disc, candle and pack filters are made to match the dimensions of other manufacturers' filters. Send us your specs, and our engineers will confirm the fit and recommend the right media and retainer for your process.
WHAT WE CHECK
Fit is only the first check
A compatible filter has to do more than seat in the housing. Every review covers four things:
Nominal size, outside diameter, inner-diameter type, hub style and number of filters per center post
Media type (nonwoven depth or wire mesh surface filtration) and micron rating
Resin, melt temperature (°F), pressure (psi) and throughput (lb/hr)
Housings, center posts, heaters and valves, if you're upgrading more than the filter
SIZES WE MATCH
Standard leaf disc dimensions
| Nominal size | Outside diameter | Inner-diameter options |
|---|---|---|
| 4" | 4.4 in (111 mm) | 1.50 in (38.1 mm), 1.87 in (47.6 mm) |
| 5" | 5.9 in (149 mm) | 1.50 in (38.1 mm), 1.87 in (47.6 mm) |
| 7" | 7.0 in (177 mm) | 1.87 in (47.6 mm), 2.50 in (63.5 mm) |
| 8" | 8.7 in (222 mm) | 1.87 in (47.6 mm), 2.50 in (63.5 mm), 3.00 in (76.2 mm) |
| 12" | 12.0 in (304 mm) | 2.50 in (63.5 mm), 3.00 in (76.2 mm), 3.35 in (85.2 mm), 4.55 in (115.5 mm) |
Media grades run from 3 to 60 µm as standard, with custom grades and dimensions available. Don't see your size? Send us a drawing.
HOW A COMPATIBILITY REVIEW WORKS
Send your specs.
Filter type and size, inner-diameter type, media grade, resin and operating conditions. A drawing or current part number speeds things up.
We confirm the fit.
Our engineers match the dimensions and recommend the media and retainer for your process, flagging any differences from what you run today.
Verify it on your line.
Start with a trial set, a DENALAB rental unit or a DENALYZER test on your own resin. We help you plan the trial and review the data with you.
MORE THAN A MATCH
Same fit, with room to run better
A compatible filter has to do more than seat in the housing. Every review covers four things:
Lower pressure drop
Patented TP and CS retainers channel melt toward the center post and are designed to extend time between change-outs.
Better gel capture
Sintered nonwoven metal fiber media traps deformable gels through depth filtration.
Longer service life
304 and 316L stainless steel holds up to high-temperature, high-pressure service and repeated cleaning.
SWITCHING TO DENAFILTER
Thinking about a change? We'll make it easy.
Whether you're qualifying a second source, planning ahead for supply, or looking for longer runs and fewer gels, moving to DENAFILTER is straightforward:
One engineer from start to finish. The same DENAFILTER engineer handles your spec review, trial and qualification.
No re-engineering. Filters are made to fit your existing housings, so your line stays as it is.
Try before you commit. Start with a trial set, a DENALAB rental unit or a DENALYZER test on your own resin.
Change over at your pace. Qualify on one line or one housing first, then roll out across the plant when the data supports it.
Supplied across North America. Shipping to plants throughout the US and Canada, with sales and technical support through NAGASE.
WHAT TO HAVE READY
Speed up your review
✓ Filter type and nominal size (leaf disc, candle or pack)
✓ Inner-diameter type and hub style
✓ Current media type and micron rating
✓ Resin, melt temperature (°F), pressure (psi) and throughput (lb/hr)
✓ Filters per housing and typical change-out interval
✓ Current part number or drawing, if available
In most cases, yes. Our leaf discs are made to match other manufacturers' dimensions. Send us your current specs and we'll confirm.
Send it with your specs. Our engineers will identify the closest DENAFILTER equivalent and flag any differences.
Most plants verify a new filter on the line before full adoption. We can start with a trial set or a test on your own resin.
Yes. You can qualify DENAFILTER on a single line or housing first, then expand once the results are in.
We reply within two business days. [Confirm turnaround for a full recommendation with Denafilter.]
Yes. We design housings, center posts, heaters and valves if you're upgrading the whole system.
Confirm your fit with a free compatibility review
Complete the following fields with your information and a DENAFILTER Specialist will be in contact with you shortly.