Flow Controls

Question 1

Pressure compensated flow control

Answer 1

Maintains a steady pressure drop across orifice

Question 2

What determines the pressure drop across orifice in compensated valve

Answer 2

Compensator spring

Question 3

Bypass type pressure compensated valve

Answer 3

Extra oil is dumped back to the tank to control the inlet pressure.
mostly used with fixed displacement pumps
Have 3 ports

Question 4

Restrictor type pressure compensated valve

Answer 4

Has 2 ports
Extra pressure builds up at inlet and causes pump to de-stroke
mostly used with variable displacement pumps

Question 5

Priority flow divider

Answer 5

Do not have a variable orifice
Compensator is normally closed
Can find a circuit relief that will be set slightly less then system so that if you dead head primary, you wont lose secondary

Question 6

The flow control valve that splits a single flow among 2 or more circuits is?

Answer 6

Proportional flow control valve