초록 ▼

An apparatus having an automatic purge valve assembly for draining condensate out of a compressed air storage tank. An air pressure switch, upon the presence of a predetermined atmospheric pressure in the air storage tank, will energize a relay which in turn enables a solenoid to open a purge valve,

An apparatus having an automatic purge valve assembly for draining condensate out of a compressed air storage tank. An air pressure switch, upon the presence of a predetermined atmospheric pressure in the air storage tank, will energize a relay which in turn enables a solenoid to open a purge valve, thus allowing any condensate present in the tank to be automatically drained through and out of an air outlet conduit to which the purge valve is attached. The relay shuts off automatically after only a brief period in order to quickly close the purge valve and thus avoid having a substantial amount of compressed air escape along with the condensate.

대표청구항 ▼

An automatic drain valve assembly for draining accumulated moisture from an air compressor, or similar device, having an air storage tank, comprising: outlet conduit means extending outwardly from an aperture defined by said air storage tank: a purge valve means located on said conduit means to flui

An automatic drain valve assembly for draining accumulated moisture from an air compressor, or similar device, having an air storage tank, comprising: outlet conduit means extending outwardly from an aperture defined by said air storage tank: a purge valve means located on said conduit means to fluidly communicate, when open, the interior of said tank with the ambient; activating means, connected to said storage tank and said purge valve, for automatically activating said purge valve upon the presence of a predetermined pressure in said storage tank, wherein said activating means includes a thermal time relay, solenoid means and an air pressure switch means.