Chapter 9 Flashcards
1
Q
five functions of the reservoir
A
- hold fluid
- separate entrained air
- traps contaminants
- dissipate pressure pulse
- provides cooling
2
Q
three types of line used for pressurized fluid
A
pipe, hose, and seamless tubing
3
Q
pipe
A
- sized normally
- types: schedule 40, schedule 80, schedule 160, and double extra heavy (higher pressure rating)
4
Q
hose
A
sized by inside diameter
5
Q
tubing
A
sized by outside diameter
6
Q
lines sized on maximum velocity (cost of conductor increases as size increases)
A
- pressure line = 15 ft/s
- return line = 10 ft/s
- suction line = 4 ft/s
7
Q
manifolds
A
blocks of metal with drilled passages to connect various ports
8
Q
factors in choosing conductors
A
cost, heat exchange, and compliance
9
Q
causes of hose degradation
A
- ultraviolet light
- saltwater
- air pollutants
- temperature
- ozone
- electricity
10
Q
types of failures
A
routine, pinhole, and burst
11
Q
to design a fluid containment system, use STAMP
A
s = size t = temperature a = application m = media p = pressure
12
Q
atmospheric pressure
A
brings fluid into pump and accelerates fluid