Patent ID: 8056574

Claim:
A valve assembly for mounting through a wall having a first face and a second face defining a thickness there between, the valve assembly comprising: a valve body housing having an axially-extending inner bore; a valve body telescopically received in the inner bore of the valve body housing, the valve body being axially movable with respect to the valve body housing; a valve nested in a recess of the valve body; and a locking element for selective engagement between the valve body housing and the valve body to lock a position of the valve body relative to the valve body housing; wherein a radially outward facing surface of the valve body and a radially inward facing surface of the inner bore of the valve body housing each have threads, wherein the locking element is a threaded ring having radially outward facing threads that selectively engage the threads of the valve body housing and radially inward facing threads that selectively engage the threads of the, valve body.