The ornamental design for a stacking injectionpumpmanifold, as shown and described.
FIG. 1 is a left side view of our stacking injection pump manifold, having a variable number of intermediate manifold modules.
FIG. 2 is a top view of our stacking injection pump manifold, having a variable number of intermediate manifold modules.
FIG. 3 is a front view of our stacking injection pump manifold.
FIG. 4 is a front, top left perspective view of a variant of our stacking injection pump manifold, having three intermediate modules.
FIG. 5 is a front, top left perspective view of a variant of our stacking injection pump manifold, having no intermediate modules; and,
FIG. 6 is a front, top left perspective view of a variant of our stacking injection pump manifold, having one intermediate module.
The broken (dashed) lines depict portions of the stacking injection pump manifold that form no part of the claimed design.
The stacking injection pump manifold is shown with a symbolic break in its length in FIGS. 1 and 2. The appearance of any portion of the article between the break lines forms no part of the claimed design.