Normally, water contain 2VOL% of dissolved air, when valve is injected water, the air come out from water, gathered at the high point of pipeline, form air pocket, then it become difficult to inject water, the inject ability reduce 5-15%. So main function of this valve is to exhaust the 2VOL% of dissolved air.

Sing-lever type of micro-exhaust valve, internal components contain float、lever、crate crest、valve seat, they are all stainless steel of 304S.S, internal hole size 1/16", suitable for nominal pressure is PN16