Ultraviolet (UV) Sterilizer
The Viqua SHFM-140 high flow commercial UV system uses multi-lamp UV disinfection to treat water at flow rates up to 143 gallons per minute. It comes with 3" flange connections, and features a separate control panel with high visibility components. The Viqua SHFM-140 adds state of the art UV sensor technology to the SHF-140 UV System, offering continuous feedback of UV disinfection performance for added peace of mind.
All UV sterilizers required sediment pre-filtration to reduce or eliminate the possibility that a targeted contaminant could "hide" behind a sediment particle in the "shadow" of the UV light and therefore not receive a full dose of UV light. Accordingly, the manufacturer strongly recommends sediment pre-filtration down to a level of 5 microns or smaller.
Water exceeding 120 ppm in hardness (7 grains per gallon) should be softened to reduce the risk that hard water mineral scale will build-up on the UV sleeve thereby reducing UV light distribution into the UV chamber. Similarly, iron levels exceeding 0.3 ppm or manganese levels exceeding 0.05 ppm should also be treated to prevent staining of the UV sleeve.
Elevated levels of certain other contaminants, such as tannins, can cause a reduction in UV transmittance (the ability of the water to transmit UV light). If the UV transmittance (UVT) of your water is less than 75% after the above-mentioned pre-treatment, activated carbon filtration may be desirable to improve UV transmittance. The majority of deep wells have a UVT of 85% or greater. If your UVT is unknown, select a model with a higher flow rate capacity then you feel you will really require (this will provide a higher UV dose at your desired flow rate), or add an activated carbon pre-filter to your system. We recommend the following pre-filter equipment:
|Viqua SHFM-140 Specifications|
|Applications||high flow commercial|
|Max. Flow Rate
(UV dose >30 mJ/cm2)*
|143 GPM (540 LPM)|
|Max. Flow Rate
(UV dose >40 mJ/cm2)*
|107 GPM (406 LPM)|
|Water Chamber Material||316L Stainless Steel|
|Chamber Size||34" x 6" x 14"
(86.4 x 15.2 x 35.6 cm)
|Controller Size||17.5" x 19.5" x 8.2"
(44.5 x 50 x 21 cm)
|Lamp||S740RL-4C (4 Lamps)|
|Sleeve||Quartz, Model QS-012|
|Power Consumption||320 watts|
|Inlet / Outlet Plumbing Ports||3" Flange|
|"Power-On" Indicator Light|
|Audible Lamp Failure Alarm|
|Lamp Replacement Reminder|
|Warranty||Reaction Chamber: 10 years
Intensity Monitor: 1 year
Lamp: 1 year
All other components: 3 years
*Note: Maximum recommended flow rates based on 95% UV transmittance. Actual dosage depends on flow rate, water quality, and maintenance (cleaning ov UV sleeve). UV dosage will be lower when the UV transmittance capacity of the water drops below 95% - if in doubt, select a model rated for a higher flow rate than you actually require. We recommend a UV dose of 40 mJ/cm2.
|Feed Water Quality Parameters|
|Iron||0.3 ppm (0.3 mg/L)|
|Manganese||0.05 ppm (0.05 mg/L)|
|Tannins||0.1 ppm (0.1 mg/L)|
|Turbidity||< 1 NTU|
|Hardness||< 120 ppm (7 grains / gallon)|
|UV Transmittance (UVT):||75%|
|Maximum Temperature:||104F (40C)|
|Maximum Pressure:||125 psi|