The difference between Release valve and Air Vent-heating Valve: the position is different, the Release valve is generally located at the low point of the equipment, while the Air Vent-heating Valve is located at the high point of the equipment; the role is different, the Release valve is in non-working or emergency situations, It can remove the solidified liquid and gas in the pipeline to prevent accidents. The Air Vent-heating Valve is mainly to remove the gas in the pipeline and prevent pipeline air resistance, and is mainly used in heating or central air conditioning and other equipment.
