The ornamental design for a waterflow and waterflow control device having display screen with transitional graphical user interface, as shown and described.
FIG. 1. is a front view of a water flow control device having display screen;
FIG. 2 is a front view of the water flow control device having display screen with transitional graphical user interface showing a first image in a sequence;
FIG. 3 is a front view of the water flow control device having display screen with transitional graphical user interface showing a second image in a sequence;
FIG. 4 is a perspective view of FIG. 3; and,
FIG. 5 is a left side view of FIG. 3.
The dashed broken lines in FIGS. 1-5 illustrate portions of the water flow control device having display screen with transitional graphical user interface and form no part of the claimed design. The heavier solid lines in FIGS. 2-5 form part of the claimed design.
The dashed broken lines in FIGS. 2-4 illustrate portions of a graphical user interface that form no part of the claimed design.
The subject matter in this patent includes a process or period in which an image changes into another image. This process or period forms no part of the claimed design. The solid line showing of a transitional graphical user interface within the broken-line rectangular frame in FIG. 2-4 forms part of the claimed design. The solid-line showing of water flowing from the device in FIG. 3-5 forms part of the claimed design.