50 m³/h · 4" DN100 UV Water Filter

Why specify UV-C over chlorine, ozone or UF for industrial water?

UKGP Commercial UV water filters use germicidal UV-C light at a peak wavelength of 253.7 nm — the exact frequency absorbed by microbial DNA and RNA. When water passes through the polished 316L stainless steel chamber, photons penetrate the cell walls of bacteria, viruses, protozoan cysts and algae, fusing thymine bases and permanently disabling reproduction. The result is up to 99.99% inactivation in a single pass, without dosing chemicals, without altering pH, taste, odour or colour, and without producing disinfection by-products such as trihalomethanes (THMs) or bromate.

For plant rooms, food & beverage lines, hospitals, hotels, breweries, dairies, cooling towers and pre-RO polishing duties, UV is now the default specification. It requires no chemical storage, no dosing pumps, no operator handling of hazardous substances, and no contact tank — the residence time is measured in seconds, not minutes. A correctly sized UKGP-UV chamber delivers a validated dose of ≥ 40 mJ/cm², the threshold recommended by NSF/ANSI 55 Class B and the US EPA UVDGM for the inactivation of E. coli, total coliform, Salmonella, Legionella, norovirus, hepatitis A, Giardia lamblia and Cryptosporidium parvum.

Where Commercial UV water filters are specified

• Municipal & private potable water: point-of-entry treatment for boreholes, springs and rainwater harvesting where chlorination is undesirable or impractical.
• Food & beverage processing: CIP rinse water, ingredient water, bottling lines, breweries and dairies where chlorine taint is unacceptable.
• Hospitals, dental & pharma: point-of-use protection against Pseudomonas, Legionella and biofilm regrowth on cold and warm water services.
• Hotels, leisure & spas: hot & cold water systems, spa pools and ice machines to meet HSG274 / ACoP L8 expectations.
• Pre-RO & pre-membrane polishing: protecting reverse osmosis and ultrafiltration membranes from bio-fouling, extending service life.
• Aquaculture & aquariums: controlling pathogens and free-swimming algae without harming livestock.
• HVAC & cooling tower make-up: reducing biocide demand and slowing biofilm accumulation in evaporative systems.
• Industrial wastewater & reuse: tertiary disinfection prior to discharge or non-potable reuse.

How to size an commercial UV filter

Choosing the right UKGP-UV chamber comes down to four numbers: peak flow rate(m³/h), UV transmittance (UVT) of the water at 254 nm, the required log-reduction target, and the connection size of the existing pipework. Our range covers 5.5 m³/h to 150 m³/h across 23 chamber sizes, with threaded connections from DN20 up to DN150 flanged for the largest duties. As a rule of thumb, clean mains water (UVT ≥ 95%) lets the chamber operate at its full nameplate flow; borehole, rainwater or recycled water at UVT 75–85% typically requires up-sizing by one model. If you are unsure, send us your flow rate, water analysis and UVT and we will recommend the correct model the same day.

What’s inside a UKGP Commercial UV chamber

• 316L polished stainless steel chamber for corrosion resistance and reflective dose enhancement.
• Low-pressure high-output (LPHO) amalgam UV-C lamps with a rated life of 9,000 hours (≈ 12 months continuous duty).
• High-purity quartz sleeve isolating the lamp from the water — tool-free change-out in under five minutes.
• Electronic ballast cabinet with lamp-on indicator, lamp-failure alarm, elapsed-hour counter and volt-free contacts for BMS integration.
• Wiper port and drain plug ready for an optional automatic quartz wiper on hard-water duties.
• UV intensity monitor (optional) for validated installations requiring continuous dose verification.

Installation, maintenance and lifetime cost

UKGP UV chambers install horizontally or vertically with the lamp access end clear for servicing. They are supplied wired and ready to commission — connect water, plug the ballast into a 230 V supply, open the inlet, vent the chamber, and you are disinfecting in under an hour. Ongoing operating cost is exceptionally low: a single annual lamp change, a quartz sleeve clean, and a wiper service if fitted. Compared with chlorine dosing — which carries chemical purchase, COSHH compliance, dosing-pump servicing and operator H&S costs — UV typically pays back in 18–24 months and runs unattended thereafter.

Compliance, warranty and lead time

Every UKGP Commercial UV water filter is manufactured in the EU, CE marked, supplied with full O&M documentation and covered by a 4-year chamber warranty and a 12-month pro-rata lamp warranty. Lamps, sleeves and ballasts are held in UK stock for next-day dispatch. Wetted materials comply with WRAS guidance for potable duties; food-grade variants are available on request.

Ready to specify?

Browse the 23 chamber sizes and prices above, request a tailored quote, or call our technical team on +44 20 8935 5572— most enquiries receive a sized recommendation, drawing pack and firm price within the same working day. Trade and end-user accounts are welcome, and bulk-order discounts apply from three units upwards.