Patent ID: 6189862
Filing Date: 2001-02-20
Classification: F16K,Y10T

Abstract:
A valve having a housing and a valve member located in said housing for controlling flow of at least one of a fluid and fluid pressure directed through said valve, said valve comprising:a removable valve seat formed from a preselected durable molded plastic material, said removable valve seat being located in said housing and against which said valve member engages and disengages in at least one of a fluid and a pressure control process;a molded peripheral groove provided in said valve seat for receiving a sealing means;a sealing means located in said molded peripheral groove between and in contact with an outer surface of said removable valve seat and an inner surface of said housing of said valve; anda non-circular recess for receiving one end of a torque providing wrench provided in said removable valve seat;said housing being provided with a radially outward slanting chamfered surface disposed opposite said molded peripheral groove for receiving said sealing means.