Description
Air Valve (non-vacuum)
Float-type thermostatic vent
For residential or small one-pipe or two-pipe systems
Single non-adjustable port
12″ NPT female and 34″ NPT male straight shank
Install 6-10″ (150-250mm) above horizontal return and 18″ (450mm) above the boiler water line
Maximum operating pressure 2 psig (0.13 bar)(Drop away pressure – maximum pressure against which the vent can open).
Maximum pressure 10 psig (0.7 bar)
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