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0006081054_200810
8877.tif
N° 8877-GB
Rev. 06/11/90
OPERATING PRINCIPLE
This valve has two open positions
and is equipped with a regulator.
The regulator sets the hydraulic
brake activation point which, in turn,
causes rapid release of the opening
first stage. After the initial release,
the brake cuts in, ensuring that the
valve continues to open slowly. This
valve is also equipped with two gas
flow regulators: one for the first fla
-
me and the other for the second.
Setting the initial rapid release
trip
To set the initial rapid release trip,
unscrew the protection cap “F” and
use the back of the cap as a tool
to turn pin “G”. Turning clockwise
decreases the gas flow, turning
counter-clockwise increases it.
This done, screw down cap “F in
its original position.
INSTRUCTIONS FOR SETTING DUNGS GAS VALVES mod. ZRDLE
Setting gas flow for the 1
st
stage
Before setting the gas flow for the
1
st
and 2
nd
stages, loosen screw
“D” (unpainted screw with raised
cylindrical head). After the gas flow
has been set, remember to tighten
this screw once more.
N.B.
To open to the 1
st
stage po-
sition, turn the 2
nd
stage
regulation ring “L” counter-
clockwise by at least one
full turn. To set the gas flow
for the 1
st
flame, turn knob
“E”: turning it clockwise de-
creases gas flow, turning it
counter-clockwise increases
it. Full travel of regulator “E”
for the 1
st
flame, from + to -,
is approximately 3
1
/
2
turns.
When this regulator is fully
open, the gas flow to the 1
st
stage can be approximately
40% of the total available
when the valve is fully open
in the second position.
Setting gas flow for the 2
nd
sta-
ge
Loosen screw “D” (unpainted screw
with raised cylindrical head).
To set the gas flow for the 2
nd
flame,
turn ring “L”: turning it clockwise de-
creases gas flow, turning it counter
clockwise increases it.
This done, tighten screw “D”. Full
travel for regulator “L” for the 2
nd
stage, from + to -, is approximately
5
1
/
2
turns.
H = Identification plate
I = Flow direction indicator
Detail of terminal block
Neutral
1
st
Position
2
nd
Position
N
L1 L2
Summary of Contents for BGN 200 P
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