EATON CH 10 Flashcards
A RELIEF VLV IS NORMALLY
CLOSED
THE POINT AT WHICH A RELIEF VLV FIRST OPENS IS CALLED ITS ______ PRESSURE
CRACKING
A RELIEF VLV LIMITS THE ________ PRESSURE IN AN HYDRAULIC SYSTEM
MAXIMUM
THE DIFFERENCE IN PRESSURE BETWEEN THE POINTS WHERE A RELIEF VLV FIRST OPENS AND PASSES FULL PUMP DELIVERY IS SOMETIMES CALLED_____
OVERRIDE
WHEN THE CHAMBER ABOVE THE BALANCED PISTON OF A RELIEF VLV IS OPENED TO TANK IT IS SAID TO BE
VENTED
WHEN A PRESSURE REDUCING VLV IS VENTED ITS OUTLET PRESSURE IS AT ITS
MINIMUM PRESSURE
PRESSURE REDUCING VLVS ARE ALWAYS DRAINED
EXTERNALLY
IF THE VENT CONNECTION OF A RELIEF VLV IS OPENED TO TANK THE PUMP IS SAID TO BE
UNLOADED
IF OPERATIONS TAKE PLACE IN A CERTAIN ORDER THEY ARE DONE IN
SEQUENCE
IF A SEQUENCE VLV IS INSTALLED IN A CYLINDER LINE IT SHOULD CONTAIN A
CHECK VLV
A BACK PRESSURE TYPE VLV IS NORMALLY
OPEN
WHEN USED TO SUPPORT A LOAD THE VLV FUNCTIONS AS A
COUNTERBALANCE
IF FLOW FROM SECONDARY TO PRIMARY IS REQUIRED THE UNLOADING VLV CONTROL PRESSURE SHOULD BE _______ ABOVE THE SPRING SETTING
150PSI
PRESSURE IN THE OUTLET PORT OF AN INTERNALLY DRAINED SEQUENCE VLV ADDS TO THE ________ SETTING
SPRING
PRESSURE REDUCING VLV WITH INTERNAL CHECK VLV PERMITS _______ FREE FLOW
REVERSE
