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high-pressure vent (HPV) valve definition
A
B
C
D
E
F
G
H
I
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K
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M
N
O
P
Q
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a
shutoff valve
located on the high
pressure
side
of a
gas
piping
system
that controls the release of
gas
from the
system
. [SEMI Chemicals/Gases, Vol. 1, 1990 (no longer in print)]
See also:
hemins definition
Heisenberg Uncertainty Principle definition
helium (He) definition
heat exchange area definition
highly toxic material definition
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