Eaton 11 Flow Controls

Question 1

By controlling the rate of flow in a hydraulic circuit, it is possible to control:

Answer 1

the speed of hydraulic actuators (cylinders) or motors

Question 2

Meter-in flow control valves are placed between the pump and the actuator, and controls:

Answer 2

the amount of fluid going into the actuator

Question 3

If the load tends to run away, a more positive approach is to utilize:

Answer 3

a meter-out circuit.

Question 4

In a bleed-off circuit, cylinder speed can be controlled by:

Answer 4

diverting pump delivery to the reservoir.

Question 5

Bypass pistons are kept closed by:

Answer 5

a spring under the piston equivalent to 20 psi

Question 6

A restrictor type pressure-compensated flow control has a 20 psi spring that holds the compensator spool:

Answer 6

in the normally open position

Question 7

The use of any type of proportional flow control valve requires that the equipment contain:

Answer 7

an electrical power supply

and

electrical controls

Question 8

Deceleration valves are restrictor type flow controls and they are usually used in a:

Answer 8

meter-out operation