The ornamental design for a handle for push-pull valve assembly, as shown and described.
FIG. 1 is a front perspective view of a first embodiment;
FIG. 2 is a front perspective view of a second embodiment having an extended distal end section;
FIG. 3 is a left side elevation view of the embodiment of FIGS. 1 and 2;
FIG. 4 is a right side elevation view of the embodiments of FIGS. 1 and 2;
FIG. 5 is a front elevation view of the embodiment of FIG. 1; and,
FIG. 6 is a front elevation view of the embodiment of FIG. 2.
The rear elevation view, the top plan view and the bottom plan view of the embodiment of FIG. 1 are the same as FIG. 5. The broken lines form no part of the claimed design.