In the illustration shown, the operating piston "H" in the valve has a larger surface area than the main valve disc to allow __________. See illustration GS-0044.

Question

Accepted Answer

control action to be accomplished with a relatively small amount of high pressure steam

Answer

control action to be accomplished by a relatively small amount of downstream low pressure steam

Answer

complete closing of the main valve when pressure adjustments are made

Answer

free movement of the auxiliary valve "B" during a change in operating pressure

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