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← ScienceWhich risk greatly increases when a pressure regulator uses an undersized compensation bellows?
A)Outlet pressure climbs uncontrollably upwards✓
B)Valve seat erodes through cavitation
C)System oscillates due to fluid hammer
D)Regulator fails to open on demand
💡 Explanation
Outlet pressure climbs uncontrollably when the force balance is disrupted because the area of the main valve is greater; therefore a greater change in pressure will have a larger effect, causing a climbing effect rather than maintaining steady pressure because `force feedback` no longer counteracts changes.
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