Air separation apparatus having air vent assembly

An air separation apparatus which is installed in or mounted to pipes for separating and expelling air from circulating water, comprising:

• an air separator including a main body associated with pipes at both sides, an opening lid fixed on a top portion of the main body by means of a coupling means for closing and opening the main body, and a plurality of thin metal plates to fixedly stand in the main body with a predetermined interval or spacing defining a series of interplate gaps through which circulating water flows;
• and
• an air vent including a main body coupled to the air separator, a housing having an air outlet at a top portion thereof, a float accommodated in the main body and movable up and down, and valve means provided on a top portion of the float for alternately closing and opening the air outlet of the air separator in response to the up and down movement of the float,
• wherein the housing has a stopper in an inner periphery, which protrudes downward for limiting the upward movement of the float, the housing being further provided with an O-ring below the float for preventing air from flowing back to the air separation apparatus.

An air separation apparatus which is installed in or mounted to pipes for separating and expelling air from circulating water, comprising:

• an air separator including a main body associated with pipes at both sides, an opening lid fixed on a top portion of the main body by means of a coupling means for closing and opening the main body, and a plurality of thin metal plates to fixedly stand in the main body with a predetermined interval or spacing defining a series of interplate gaps through which circulating water flows;
• and
• an air vent including a main body coupled to the air separator, a housing having an air outlet at a top portion thereof, a float accommodated in the main body and movable up and down, and valve means provided on a top portion of the float for alternately closing and opening the air outlet of the air separator in response to the up and down movement of the float,
• wherein the valve means is formed of pliable and elastic raw rubber or synthetic resin and has fixing protrusions, which are complementary with fixing parts of the float and detachably coupled with the fixing parts.