Inwards relief valves usually open at a negative differential pressure not exceeding
- 0.16 p.s.i.
- 1.2 p.s.i.
- 0.5 p.s.i.
Explanation
Inward relief (negative-pressure relief) valves protect the structure against the cabin pressure falling below outside pressure, for example in a rapid descent with the cabin already at low pressure. They are set to open at a small negative differential, typically not exceeding about 0.5 psi, so the structure is never highly loaded inward.
simontay asking:
I thought it should be 0.5 psi
Community Comments (4)
E
Edigno92 Posts: 1 30.06.2014 / 20:45
I'm agree with u
M
markino87 Posts: 4 30.06.2014 / 23:46
right answer is 0.5 psi
W
watzz Posts: 3 02.07.2014 / 12:41
0.5psi
-correct
-correct
D
dimky Posts: 514 02.07.2014 / 16:13
Corrected.
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