HAC-A-H General electron drain valve match analogous circuit solid state electron timerwith the solenoid valve to realize discharging the condensed water of compressed pneumaticsystem at fixed time automatically,NAC-A-H Electron drain valve widely be applied incompressed pneumatic system parts like filter,Separator ,Dryer machine,Gas tank,Waterdrop foot and so on,Discharge time can be carried on adjustment according to differentrequirements.The feature of this heating drain valve have a automatic heating valve bodyto prevent fluid freezing when temperature of environment is low.It widely used for lowtemperature applications pneumatic systems when water necessary for drain.Such as Aircompressor and other pneumatic systems in a low temperature environment.