Patent ID: 7819958

Claim:
A purge valve for use with an air drying system, comprising: (a) a body, wherein the body further comprises at least one internal chamber and at least one external port; (b) a piston disposed within the body, wherein the piston further comprises: (i) a piston head, wherein the piston head further comprises a bore passing lengthwise therethrough; and (ii) a piston body attached to the piston head, wherein the piston body further comprises a bore passing lengthwise therethrough; and (c) a valve attached to the piston body, wherein the valve further comprises: (i) a bore passing lengthwise therethrough; and (ii) a plurality of guide members attached to or formed integrally with the valve, wherein the guide members provide positional stability to the valve within the body and provide enhanced airflow through the valve; and (d) a connecting member passing completely through the bores in the piston head, piston body, and valve for attaching the piston head, piston body, and valve to one another.