The invention relates to an air
inlet valve, in particular to a special manual air
inlet valve for a device in bearing
water storage equipment, and solves the problem of incapability of automatic outlet water upon
water supply cut-off of an external
water supply system and formation of negative pressure at a high position of a pipeline
system existing in the bearing
water storage equipment. The special manual air
inlet valve for the device in the bearing
water storage equipment comprises an air collection
pipe, an air collection
pipe joint, an air inlet
pipe, a seal ring, a push rod, a
push button, a compression spring and a
valve seat, wherein the lower end of the air collection pipe is provided with an opening; the air collection pipe joint is hermetically connected to the upper end of the air collection pipe; the upper end of the air inlet pipe extends into the inner cavity of the air collection pipe, and is close to the lower end face of the air collection pipe joint; and the lower end of the air inlet pipe extends out of the air collection pipe and is hermetically connected with a middle circular hole of the
valve seat. Through the valve, the problem of incapability of automatic outlet water upon
water supply cut-off of the external water supply
system and formation of negative pressure at the high position of the pipeline system existing in the bearing water storage equipment is effectively solved; and the valve is suitable for various kinds of bearing water storage equipment.