The steam direct-acting pump delivers liquid F to the h

The steam direct-acting pump delivers liquid F to the height H (Fig. 2). What is the working pressure of the steam, if the diameter of the steam cylinder is D, and the pump cylinder is d? Loss of friction is negligible.
Given: liquid - gasoline; Н = 30м; D = 160mm = 0.16m; d = 90mm = 0.09m
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