Unit 3-2 Flow control Circuits

What is the configuration in this flow control diagram?

• meter-in extension

  meter-in retraction

• meter-in extension

  meter-out retraction

• meter-out extension

  meter-in retraction

• meter-out extension

  meter-out retraction

Answer explanation

The arrow in both check valves are pointing out of the cylinders: meter-out.

One valve in the cap - extension

One valve in the rod - retraction

What configuration is shown in this flow control diagram diagram?

• meter-in extension

• meter-in retraction

• meter-out extension

• meter-out retraction

Answer explanation

The arrow in check valve is pointing out of the cylinder: meter-out.

Check valve located in rod end - retraction

What diagram shows a meter-in retract configuration?

• DIagram on the left

• DIagram on the right

• None of them

• Both of them

Answer explanation

The check valve in both diagrams is located in the cap end, therefore both are extend.

In the second diagram, the cylinder gets retracted by the DCV.

Write the configuration for the diagram on the left:

Answer explanation

The arrow in check valves is pointing out of the cylinder: meter-out.

Valve is located in the cap: extension

Write the configuration for the diagram on the right:

Answer explanation

The arrow in check valves is pointing to the cylinder: meter-in.

Valve is located in the cap: extension

What is one of the learning objectives of the lesson?

• Describe different flow control circuit configurations

• Calculate the resistance in a circuit

• Identify the power source in a circuit

• Explain the history of electricity

What is flow control used for?

• To control the direction of an actuator

• To control the speed of an actuator

What does a check valve do in a pneumatic circuit?

• Allows for only one direction of air.

• Controls the air pressure.

• Allows air to flow in both directions.

• Increases the air speed.

Answer explanation

A check valve in a pneumatic circuit allows air to flow in only one direction, preventing any backflow or reverse flow of air within the system

What does "Meter out" mean in pneumatic meter circuits?

• The valve controls the air leaving, applying back pressure to the actuator.

• The needle valve controls the air moving to the actuator, applying forward pressure.

• The valve allows air to flow in both directions.

• The needle valve increases the air pressure.

What is the function of the check valve in a Meter IN circuit?

• It controls the air moving to the cylinder.

• It releases air from the cylinder.

• It measures the air pressure in the circuit.

• It blocks air from entering the circuit.