Pureflow Bio · Made in India
CRDF-15 Pump Feed Combi Drum Filter
Pump-fed combi filtration for koi ponds and small recirculating systems, with a 15 m³/h catalogue maximum-flow listing. The catalogue specifies a 75-micron SS 316 drum screen, automatic level-sensor washing and a 40 W × 2 UV lamp arrangement.
Download the Pump Feed CRDF catalogue (PDF) ↗
CRDF-15 specifications
| Model | CRDF-15 |
|---|---|
| Series and feed arrangement | Pump Feed CRDF |
| Overall length | 1650 mm |
| Overall width | 550 mm |
| Overall height | 745 mm |
| Listed water volume | 15 m³ |
| Catalogue maximum flow | 15 m³/h |
| Water inlet | 50 mm × 2 |
| Water outlet | 63 mm × 3 |
| UV lamp power and quantity | 40 W × 2 |
| Combined UV lamp nameplate power | 80 W, calculated from the lamp listing |
| Screen | SS 316 grade, 75-micron mesh |
| Automatic cleaning | Level-sensor trigger and high-pressure washer nozzles |
| Drive component | Wear-resistant PP gear |
Catalogue maximum flow and listed water volume are comparison values. Final selection also depends on solids and feed loading, biological media, aeration and available hydraulic head. UV listings show watts per lamp × quantity; they are not the total electrical load or a validated disinfection dose.
Where CRDF-15 fits
Application
A practical starting point for pump-fed pond upgrades and compact treatment loops where screening and biological chambers need to be coordinated in one unit.
Hydraulic fit
CRDF-15 is listed at 15 m³/h with 2 inlet connection(s) of 50 mm and 3 outlet connection(s) of 63 mm. Match the pipework and actual filter flow to the installation drawing.
Biological duty
The catalogue lists 15 m³ water volume. Media type, fill volume, aeration and daily feeding must be assessed separately; water volume alone does not establish biological capacity.
Plan the installation
Position the filter on a level, load-bearing base and coordinate its elevation with the return route. Size the feed pump at the real operating head; do not use its zero-head flow as the filter duty. Provide an unrestricted waste drain, wash-water supply and safe electrical isolation.
How the treatment stages work
A pond or system pump supplies the filter. The drum screen retains suspended particles, the wash system sends captured solids to waste, and water continues through the biological chambers before returning to the system. Plan the outlet route around the actual filter and pond levels.
Screen
The 75-micron SS 316 screen separates particles it can retain from the water stream.
Wash
A level sensor triggers automatic washing; high-pressure nozzles direct retained material to the waste route.
Biological stage
The chamber arrangement supports the specified media and aeration system. Monitor water quality as the biological stage matures.
CRDF-15 image gallery
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Service access and maintenance
Inspect the drum screen, spray nozzles, level sensor, PP drive gear and waste drain. Check the biological chambers and aeration arrangement according to the operating instructions. Isolate electrical and UV equipment before servicing; follow the supplied lamp and sleeve maintenance schedule.
CRDF-15 questions answered
What is the maximum flow listed for CRDF-15?
The catalogue maximum-flow listing is 15 m³/h. Final operating duty must account for the 75-micron screen, solids loading and hydraulic conditions.
What are the dimensions of CRDF-15?
The catalogue lists 1650 mm length, 550 mm width and 745 mm height. Allow additional space for service access and connected pipework.
What UV lamps are listed for CRDF-15?
The listing is 2 lamp(s) at 40 W each. This is a lamp-power listing, not a validated UV dose or the total electrical consumption of the filter.
Does the combi filter replace biological design?
No. The biological media, aeration, feed loading and commissioning plan must suit the application. The catalogue water-volume figure is not a guaranteed ammonia-removal capacity.
How do I request a quotation?
Send Pureflow Bio the CRDF-15 model name, project location, actual filter flow, daily feed and installation layout. The quotation confirms the supplied configuration and scope.
Request a CRDF-15 quotation
Share your filter flow, application, daily feed and project location. Our team will review the equipment and installation requirements with you.