Chapter 3, 4 & 8 Flashcards
When air is compressed ______ and _______ increases
Temperature and pressure
When air expands, _______ and _______ decreases.
Pressure and temperature
The _____ and ______ of compressed air makes it kinetic energy
Pressure and flow
Air flowing through a pipe in a period of time is called?
Rate of flow
Rate of flow is measured in?
Cubic feet per minute (CFM)
Mechanical device consisting of a body and a moving part which connects and disconnects passages within a body?
Basic pneumatic valve
Valves control 3 things:
1) System pressure
2) Direction of flow
3) Rate of flow
4 ways to control DCV’s:
1) Manually
2) Mechanically
3) Electronically
4) Pilot pressure
What is a body that has internal flow passages that controls the direction of flow with moveable parts?
Directional control valve
What 5 things describe a certain DCV?
1) Positions
2) Ways
3) Control operation
4) Return
5) Normally passing/ normally non-passing
Senses and controls tank pressure in compressors
Pressure switch
A valve dedicated to regulating tank pressure in case of a control system failure
Safety relief valve
Controls pressure of stored energy to a leg of a circuit
Pressure regulator
A 2 way directional valve gives ____ & ____ function
On and off
The function of a 3 way directional valve is to _____ and _____ one actuator port
Pressurize and exhaust
