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Idiomas disponibles
Idiomas disponibles
INSTRUCTIONS FOR SETTING DUNGS GAS VALVES mod. ZRDLE
H = Identification plate
I
= Flow direction indicator
Detail of terminal block
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.
Neutral
1
Position
st
2
Position
nd
N
L1 L2
51 / 112
0006081054_200810
N° 8877-GB
Rev. 06/11/90
Setting gas flow for the 1
Before setting the gas flow for the
1
and 2
stages, loosen screw
st
nd
"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
sition, turn the 2
regulation ring "L" counter-
clockwise by at least one
full turn. To set the gas flow
for the 1
flame, turn knob
st
"E": turning it clockwise de-
creases gas flow, turning it
counter-clockwise increases
it. Full travel of regulator "E"
for the 1
flame, from + to -,
st
is approximately 3
When this regulator is fully
open, the gas flow to the 1
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
ge
Loosen screw "D" (unpainted screw
with raised cylindrical head).
To set the gas flow for the 2
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
stage, from + to -, is approximately
5
/
turns.
1
2
stage
st
stage po-
stage
nd
/
turns.
1
2
st
sta-
nd
flame,
nd
nd
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