Fluid Power Forums General Fluid Power Discussion couple of questions|
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Bernoulli |
I recently had this question on a millwright exam and wasnt sure of the answer. any help?thks
What causes the browing deposites on a hydraulic spool? heres a couple more to Why can't a vacuum pump achieve 29hg at sea level and What determines if a pilot check valve is externally drianed? |
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Bourdon |
Were these multiple choice questions/
If multiplle choice, what were the possible answers? If not multip;e choice, what book or books were used to teach the hydraulic portion of the class? Bud Trinkel FP Consultant Retired "Fame is a vapor, popularity an accident, riches take wings. Only one thing endures, and that is character." -- Horace Greeley |
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Boyle |
A pilot operated check valve needs to be of the external drain type if backpressure can be applied to the check valve by other valves in the circuit. This would typically be the case if a proportional valve is used, or if a flow control valve is install on the free-flow inlet side of the check. |
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Bernoulli |
thks I figured the
What causes the browing deposites on a hydraulic spool? would be pretty straight forward |
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