AUTO DRAIN VALVE

摘要

PURPOSE: An auto drain valve is provided to prevent a fail caused by moisture and foreign materials and to ensure a simple and firm structure. CONSTITUTION: A valve discharge pipe(140) is coupled to the bottom of a lower chamber(120) and allowed to protrude from a valve body(110). A discharge port(141) is formed from the top to the bottom of the valve discharge pipe. A diaphragm(150) is tightly fitted between the bottom of the lower chamber and the top of the valve discharge pipe in order to keep airtight seal. The diaphragm is bent by the pneumatic change of a pneumatic device, thereby discharging drain water from an upper chamber(130) through the discharge port.