Eaton Ch. 10 Flashcards
Pressure reducing valves are always drained…
Externally
If the vent connection of a relief valve is opened to tank, the pump is said to be?
Unloaded.
If operations takes place in a certain order, they’re done in?
Sequence.
A sequence valve should contain a?
Check Valve.
A back pressure valve is normally?
Open.
If flow from secondary to primary is required, the unloading valve control pressure should be ______ above the spring setting.
150 psi.
When used to support a load, the valve functions as a?
Counterbalance Valve.
Pressure in the outlet part of an internally drained sequence valve adds to the _____ setting.
Spring.
Pressure reducing valves with internal check valves permit _____ free flow.
Reverse,
When the unloading valve is _____ operated, the spring force and pressure in the primary part are independent of each other.
Remotely.
A brake valve is used to prevent?
Both A and C.
When a load is being accelerated, pressure is maximum at the motor…
Inlet.
A back pressure valve can also be used as a ____ valve.
Unloading.
A relief valve is normally?
Closed.
The point at which a relief valve first opens is called it’s ____ pressure.
Cracking.
A relief valve limits the ____ pressure in a hydraulic system.
Maximum.
The difference in pressure between the points where a relief valve first opens and passes full pump delivery is sometimes called?
Override.
When the chamber above the balanced piston at a relief valve is open to tank, it is said to be?
Vented.
The best hydraulic formula:
Y=f/2
When a pressure reducing valve is vented, its outlet pressure is at its?
Minimum Pressure.
