A double pilot-operated check valve uses how many pilot signals to control the main valve?

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Study for the Intermediate Hydraulics Exam. Enhance your skills with flashcards and multiple choice questions. Each question includes hints and explanations to prepare you for your exam!

Multiple Choice

A double pilot-operated check valve uses how many pilot signals to control the main valve?

Explanation:
A double pilot-operated check valve uses two independent pilot signals to control the main valve. The two pilot circuits must be energized to move the main valve off its seat, which provides robust, reliable operation especially under high back pressures and transient conditions. This dual-pilot arrangement allows controlled opening from two separate sources or directions, reducing the chance of accidental opening and improving stability. So the correct concept is that two pilot signals control the main valve.

A double pilot-operated check valve uses two independent pilot signals to control the main valve. The two pilot circuits must be energized to move the main valve off its seat, which provides robust, reliable operation especially under high back pressures and transient conditions. This dual-pilot arrangement allows controlled opening from two separate sources or directions, reducing the chance of accidental opening and improving stability. So the correct concept is that two pilot signals control the main valve.

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