5
Eclipse ThermJet Design Guide No. 205, 3/5/07
S
YMBOL
A
PPEARANCE
N
AME
R
EMARKS
B
ULLETIN
/
I
NFO GUIDE
A CRS valve is used in a high/
low time-proportional control
system to quickly open and
close the air supply.
The schematics show the
advised positions of the
pressure taps.
The impulse line connects
the ratios regulator to the air
supply line.
742
744
Ratio regulator
CRS valve
Pressure taps
Impulse line
A ratio regulator is used to
control the air/gas ration. The
ratio regulator is a sealed unit
that adjusts the gas flow in ratio
with the air flow. To do this,
it measures the air pressure
with a pressure sensing line,
the impulse line. This impulse
line is connected between the
top of the ratio regulator and
the air supply line.
The cap must stay on the ratio
regulator after adjustment.
K
ey
to
s
ystem
s
ChematiCs
(C
oNtiNueD
)
