The gas flow into the high-pressure side regulator is dependent on what two opposing forces?
1. Gas pressure above the diaphragm
2. Gas pressure at the diaphragm
3. Spring tension below the diaphragm
4. Spring tension above the diaphragm
a. 1 and 3 c. 2 and 4
b. 2 and 3 d. 1 and 4
ANS: A
When the force offered by the high-pressure gas above the diaphragm equals the force offered by spring tension, the diaphragm is straight and the inlet valve is closed.
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