|US Public Health Standard - EPA||16mJ (high capacity stated)|
|Industry/Manufacturers Standard||30mJ (primary capacity stated - top of page)|
|NSF Standard||40mJ (lowest capacity stated)|
|Contaminant||Dosage required to sterilize
(mJ/cm2) 99% Effectiveness
|Cryptosporidium parvum oocysts||8|
|Giardia lamblia cysts (Beaver fever)||< 10|
|Vibrio cholerae (Cholera)||3|
|Shigella dysenteriae (Dysentery)||3|
|E.coli (Escherichia coli O157:H7)||6|
|Salmonella typhi (Typhoid fever)||9|
|Legionella pneumophila (Legionaires' disease)||10|
|Salmonella enteritidis (causes gastroenteritis)||10|
|Hepatitis A virus||16 - 30|
|Poliovirus Type 1||21 - 30|
|Coxsackie B5 virus||30|
|Rotavirus SA11||31 - 36|
It is strongly recommended (by all UV manufacturers) for maximum efficiency of your UV Sterilization, that you pre-filter your water with a 5 Micron sediment cartridge.
Do not connect plastic pipe or tubing directly to the UV system because the UV light will break down plastic over time. The best way to make the connection is with Dielectric Unions that allow for a connection from stainless steel to copper, that will not corrode.
The Sterilight® Platinum™ "SPV" series carry NSF/ANSI Standard 55, Class A certification. A total of eight systems are available with flow rates from 2.6 to 14.9 gpm. Whether you are looking for a point-of-use disinfection system or a high-flow point-of-entry system, Sterilight's "SPV" Platinum systems have you covered.
Applications include private wells, camp grounds, hotels, bottlers, aquaculture, hospitals, food, cottages, restaurants, breweries, water systems, laboratories, marine, pharmaceutical, dairies and many other applications.
The UV dose delivered by a given reactor is dependent on many factors, including water quality and flow rate. NSF/ANSI Standard 55 requires that the UV system deliver a minimum UV fluence of 40 mJ/cm2 at the alarm set-point. The accompanying graph shows how the delivered fluence will be affected at varying UV transmittance levels.