18 Questions
What is the primary function of relief valves in hydraulic systems?
To limit maximum pressure by diverting excess oil
At what point does a relief valve start to open and allow fluid to flow through?
Cracking pressure
What term is used to describe the difference between the full-flow pressure and cracking pressure of a relief valve?
Pressure differential
Which type of valve is normally open in a hydraulic system?
Reducing valve
What is the purpose of the pressure range in a hydraulic system?
To specify the forces actuators must generate to do work
Which type of valve depends on an external signal for its actuation?
Externally piloted unloading valve
Which type of pressure control valve is designed to release excess pressure when it exceeds a predetermined level?
Relief valve
What is the primary purpose of a pressure reducing valve in a fluid system?
To lower the pressure in the downstream section
Which type of pressure control valve helps maintain a steady pressure at specific points within a fluid system?
Pressure sustaining valve
Which pressure control valve type is commonly used to reduce pressure between two stages of processing equipment?
Pressure reducing valve
What is the primary function of a pressure control valve that opens to release excess pressure when it rises above a predetermined level?
To prevent damage from high pressures
Which type of pressure control valve is used to keep pressure stable at specific points within a fluid system, ensuring consistent flow rates?
Pressure sustaining valve
What is the primary function of a pressure regulating valve?
To continuously adjust its opening to maintain a constant outlet pressure
What is the purpose of a non-return valve in a fluid system?
To allow fluid to move in only one direction
What is the main function of a pressure switch in a fluid system?
To measure and act upon changes in the fluid's pressure
Which type of valve is used to protect against contamination and damage from reverse flow?
Non-return valve
Which type of valve is used to maintain a consistent output pressure in a fluid system?
Pressure regulating valve
What is the primary purpose of a pressure switch in a fluid system?
To measure and act upon changes in the fluid's pressure
Test your knowledge on pressure-control valves in hydraulic systems, including their types and functions. Learn about relief, reducing, sequence, counterbalance, and unloading valves, as well as their operating principles and characteristics.
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