- HEP Plumbing
- UV Sterilization Systems

UV Sterilization Systems
UV Sterilization Systems | Water Purification | Plumbing | Guild
Experience crystal-clear confidence every time you turn on the tap. HEPâs UV sterilization systems bathe incoming water in intense ultraviolet light, neutralizing bacteria, viruses, and protozoa without the taste-altering chemicals found in traditional methods. Designed for seamless integration with existing plumbing, each unit delivers reliable water purification that keeps flow rates high and maintenance fuss lowâso families, breweries, and labs alike can focus on what matters rather than whatâs lurking in their pipes.
From rugged stainless-steel chambers to intuitive smart controllers, every component is engineered for longevity and efficiency. Installers appreciate the compact footprint; users appreciate the peace of mind that comes from 99.99 % pathogen reduction, automatic lamp-life alerts, and industry-leading energy savings. Whether youâre retrofitting a cottage well or safeguarding a municipal supply, HEP and Guild make it easy to specify, source, and support UV solutions that let pure water shine.
FAQs
How does a UV sterilization system purify my water?
Ultraviolet (UV-C) light at a wavelength of 254 nm penetrates the cell walls of microorganisms as water passes the quartz sleeve surrounding the lamp. The energy disrupts their DNA, preventing bacteria, viruses, cysts, and algae from reproducing or causing infection. Because this is a physical process, no chemicals are added, and the microorganisms are rendered harmless instantlyâtypically in less than a secondâbefore the water continues through your plumbing.
Which contaminants will a UV sterilizer NOT remove?
UV treats only living organisms. It does not remove dissolved chemicals, heavy metals, hardness minerals, sediment, or unpleasant tastes and odors. For complete treatment, UV is normally paired with pre-filtration (5 Âľm sediment filter) and, if needed, activated carbon, softening, or reverse-osmosis modules. The pre-filter is critical; if particles shield microbes from the light, disinfection efficiency drops.
How often do I need to replace the UV lamp, quartz sleeve, and other parts?
UV lamps gradually lose intensity even if the light appears to be working. Most low-pressure mercury lamps are rated for 9,000â10,000 operating hoursâabout one year of continuous use. Plan to replace the lamp annually. The quartz sleeve should be inspected and cleaned every 6â12 months; replace it every 2â3 years or if it becomes etched or cloudy. O-rings and gaskets are inexpensive and should be changed during lamp service to maintain a watertight seal.
Will a UV sterilizer change the taste, odor, or temperature of my water?
No. UV treatment is completely non-chemical and leaves no residuals, so it does not alter taste, smell, pH, or temperature. The water exiting the chamber is identical in all sensory characteristics to the water enteringâonly the microbial activity has been neutralized.
What flow rate and UV dose do I need for my home or business?
Sizing is based on peak demand and required dose. Residential systems are commonly rated for 6â15 gallons per minute (GPM) at a minimum UV dose of 30 mJ/cm², which exceeds NSF/ANSI 55 Class B standards. For higher-risk applicationsâwell water, food service, medical, or commercial plantsâ40 mJ/cm² or higher is recommended (Class A). Calculate your fixture count or use meter data to find peak flow, then select the nearest larger UV unit. Undersizing risks insufficient exposure and compromised safety.
How is a UV sterilization system installed and what maintenance is involved?
Installation is straightforward: (1) mount the stainless-steel reactor horizontally or vertically after the pressure tank or point-of-entry filter; (2) install a 5 Âľm pre-filter upstream; (3) connect inlet and outlet unions; (4) plug the ballast into a grounded 120 V outlet protected by a GFCI; (5) purge air and check for leaks. Maintenance includes replacing the sediment pre-filter every 3â6 months, cleaning the quartz sleeve, and changing the lamp annually. Many units feature a lamp-change alarm and a UV intensity monitor, making upkeep simple and ensuring continuous protection.