Spirovent High Velocity Air/Dirt, Removeable Head Separator
All units are fabricated steel and available from 2” through 36” pipe size and can handle flows to over 30,000 GPM. Custom fabrication is available for special project requirements. For large high velocity systems the “HV” Series is available specifically for central plants and district systems where large volumes of water are being distributed
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Spirovent Dirt - Air Elimination / Dirt Separation Products

The air/water/dirt mixture enters the Spirovent and the Spirotube coalescing / barrier medium combined with a drop in velocity allows the air and dirt to break free of the flow path. All free and entrained air is removed through the integral vent mechanism along with up to 99.6% of the dissolved air. The dirt falls to the collection chamber in the bottom where it can be purged through the standard ball valve. Dirt and sediment with a specific gravity greater than water and to below 30 microns are separated in a continuous circulating system.
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Spirovent Air Only Eliminator

Sizes available from 3/4" - 36" handling 6 gpm up to 3600gpm recommended flow. SPIROVENT DIRT ONLY SEPARATOR 
Sizes available from 2" - 36" units handling recommended flows from 45gpm up to 11,500gpm. Dirt and sediment below 30 microns are separated in a continuous circulating system.
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TWENTY YEAR WARRANTY. IF IT LEAKS, SPIROTHERM REPLACES IT! The Spirotop Air Release Valve is essentially the vent head used on all products through 12”. It has a 1/2 inch bottom connection and can be used in places where other float vents have been tried. It carries a 20 year Limited Warranty and is designed not to leak by means of a dry air chamber
Spirovent
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This is one of our favorite images
This centrifigal separator was not working. Most centrifigal separators are sized according to pipe size not gallon per minute flow. JH Ballenger Co. remedied the problem by supplying the largest YMCA in the country a Spirovent High Velocity Air/Dirt Separator that was mounted directly to the failed centrifigal separator. The results were immediate and staggering.
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