UV systems work best when the lamp sits inside a clear, intact glass sleeve. The sleeve keeps water away from the lamp and lets the UV light reach the water properly. Over time, the glass can get cloudy from minerals, or it might crack during a lamp change. When that happens, the system loses a lot of its performance, so swapping the sleeve is an easy way to bring the unit back to full strength.
This range includes sleeves for many common UV models used in New Zealand homes and small commercial setups. Each sleeve is made for a specific system size, so matching the length and connection style is important. Once you have the right one, the replacement is usually straightforward. If you are unsure which sleeve fits your unit, we can help you confirm the correct part.
Additional Information
FAQs
1. What does a UV glass sleeve do?
The sleeve protects the UV lamp from direct contact with water and keeps the lamp clean so the light can reach the water properly. Without a clear sleeve, the system cannot disinfect effectively.
2. How do I know which sleeve fits my UV system?
Check the model number on the UV chamber or your manual. You can also measure the old sleeve length and look at the end style. If you are unsure, send us a photo and we can help match it.
3. How often should a UV sleeve be replaced?
Most sleeves last a few years, but they should be replaced sooner if they become cloudy, stained or cracked. Even light mineral build-up can reduce UV strength.
4. Can I clean a UV glass sleeve instead of replacing it?
Light scale can sometimes be cleaned with a gentle, non-abrasive method, but deep staining or scratches mean the sleeve should be swapped for a new one to keep the system performing well.
5. Do I need a plumber to replace the sleeve?
Many sleeves can be changed at home if you are comfortable shutting the system down and handling the glass. If the unit is hard to access or the chamber is under pressure, a plumber may be the safer option.