LFSV20-B solenoid valve is a two-way normally closed two-position two-way solenoid valve. The valve uses the electromagnetic force generated by the coil to drive the movement of the valve core, thereby blocking or circulating the medium in the pipeline, and achieving the purpose of timing and automatic discharge of compressed air condensate. Mainly used in compressed air system components such as filters, separators, dryers, air storage tanks, drip feet, etc. The discharge time and interval can be adjusted according to different needs.