and into its desired destination of the production string not shown one of skill in the art will appreciate that check valve 36 is energized by spring 40 to maintain it in the closed position this prevents fluid flowing within the tubing accessed by tubing access opening 38 from contaminating the gas lift valve or the annulus in the interest of maintaining the electric motor and the ball screw free from production fluid and other debris chamber 26 includes o rings 42 and 44 which seal against ported sleeve 28 ported sleeve 28 is most preferably constructed from solid rod in which thread 30 is cut and an axial opening is drilled partially into the rod providing through passage for the to ports 32 the solid portion of the rod left after machining is body seal 46 one of skill in the art will appreciate that in fig1 the ported sleeve has been separated along the center line of the drawing to illustrate sleeve 28 in two positions i e partially activated and closed off one of ordinary skill in the art will appreciate that in actuality body seal 46 is contiguous with the mirror but moved over image thereof on the other side of the drawing in the second embodiment of the invention referring to fig2 only the major differences from the embodiment of fig1 will be described it should be noted that the embodiment of fig2 provides even more control over the amount of flow of gas from the annulus to the production tubing string by providing individual ports on the ported sleeve of differing sizes and by employing a series of differently dimensioned ports through the housing to the annulus instead of.