A Comparison of sewage/wastewater industry air release valves

This video demonstrates a range of testing of both single and double chamber air release valves and proves conclusively the advantage of the VS-4 Smartvalve.

READ ALL ABOUT AIR RELEASE VALVES AND DINOSAURS
 Single Chamber
Valves
Double Chamber
VS-4
Smartvalve
Floats and seals protected from solidsNoYes
Seals at atmospheric pressureNoYes
Positive buoyancy of floats0.6 to 2 lbs4.4 lbs
Can be easily serviced on-siteNoYes
Guaranteed anti-hammer air chamberNoYes
Multiple valve ports to a single upstand
(2 or 3 x airflow)
NoYes
No exposed poly or plastic partsSomeAll stainless steel
316 stainless steel constructionSomeYes
Extra long service intervalsNoYes

vs 4 smart valve double chamber air release comparison

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The VS-4 Smartvalve

The VS-4 Smartvalve
International Patent Pending

All things considered,
the VS-4 SMARTVALVE
is the smarter choice!

The double chamber air release valve advantage

the double chamber air release valve advantage
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european common market approved product