UV lamps
UV lamps are the ultraviolet lamps of disinfection units. They emit at around 254 nm, a wavelength that inactivates bacteria and other micro-organisms without adding chemicals to the water. ALPHA for Environmental Technologies supplies replacement UV lamps and their protective quartz sleeves for your unit’s model.
Available on request
Tell us the model, size or quantity you need and our team will send you a technical and commercial offer.
Parts of a UV disinfection unit
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Lamp
The UV source; its output falls with operating hours even while it still lights.
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Quartz sleeve
A clear tube that keeps the lamp out of the water and must stay clean for the UV to pass.
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Ballast
Powers the lamp; a ballast fault leaves the lamp off.
Frequently asked questions about UV lamps
When should a UV lamp be replaced?
Makers usually rate lamps for about 9,000 operating hours, roughly one year of continuous use; after that the UV output drops even if the lamp still lights. Check your unit's manual.
Why must the quartz sleeve be cleaned?
Minerals, iron and manganese build a coating on it that cuts the UV reaching the water, more so in hard water.
Is a UV unit enough on its own?
UV is effective against micro-organisms but leaves no residual in the water, so chlorine may be added to protect tanks and networks, depending on the use.
What do I need to order a replacement lamp?
The disinfection unit model, or the lamp length and wattage, or a photo of the lamp.