Valves Flashcards
1
Q
What is the purpose of valves?
A
- A method of controlling the flow of a liquid or gas
2
Q
Globe valve
A
??
3
Q
Use the gate valve
A
Used mostly in large bore systems such as ventilation trunking
4
Q
Flap valve
A
A Simple type of non-return valve
5
Q
Ball seated cock
A
Bored through ball
which by a 90° turn can be lined up with the flow path
6
Q
Pressure relief valve
A
Protects the system from over pressurisation at all times
7
Q
Reducing valve
A
Excepts a high-pressure entry and allows the fluid to expand reducing the pressure through the system
8
Q
Non-return valve
A
Prevent flow reversal
9
Q
Name 2 examples of a non-return valve
A
- flap valve
- globe valve
