The ornamental design for a divingvalve for oxygencylinder, as shown and described.
FIG. 1 is a perspective view of a diving valve for oxygen cylinder showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is an enlarged view of portion 9 shown in FIG. 1; and,
FIG. 10 is an enlarged view of portion 10 shown in FIG. 2.
The dashed broken lines in the drawings depict portions of the diving valve for oxygen cylinder that form no part of the claimed design. The short dash-long dash broken lines depict the bounds of the enlargements and form no part of the claimed design.