Air bubbles enter the valve and displace the liquid inside, lowering the liquid level. When the level drops to where it no longer buoys the float, the float drops. This motion pulls the seat away from the orifice, triggering the valve to open and vent the accumulated air into the atmosphere.
SINGLE ACTING AIR RELEACE VALVE (SMALL ORIFICE), For automatically releasing air which may accumulate under pressure in a section of pipe line during normal working condition.

Specifications

Brand	Floin
Model	AR101
Size	15 to 40 NB
Connection	Flanged/Screwed
Mounting	Top
Material	CI / WCB / CF8 / CF8M

For automatically releasing/admitting air that may accumulate under pressure in a section of ripe line at the time of initial charging or draining of mains.

Specifications

Brand	Floin
Model	AR102
Size	25 To 50 NB
Connection	Flanged/screwed
Mounting	Top
Material	CI/WCB/CF8/CF8M

Double Acting Air Valve are basically a combination of small orifice and large orifice for automatically discharging air during pipe filling and ventilating the pipe during emptying.

Specifications

Brand	Floin
Model	AR201
Size	40 to 200 NB
Connection	Flanged/Screwed
Mounting	Top
Material	CI / WCB / CF8 / CF8M

Kinetic air valves allow large volumes of air to discharge, but will not allow water to escape. The second function of this product is to allow large inflows of air under vacuum conditions.

Specifications

Brand	Floin
Model	AR301
Size	40 to 200 NB
Connection	Flanged/Screwed
Mounting	Top
Material	CI / WCB / CF8 / CF8M