REGULATION INSTRUCTIONS FOR GAS VALVE
OPERATION
One-stage valves
In the case of a valve opening signal, the pump turns on and the
magnetic valve closes. The pump transfers the of oil under the piston
to its upper section, the piston moves downward and presses the
closing return spring through the stem and the plate. The valve stays
open and the pump and magnet valve remain powered.
In the case of a closing signal (or due to a loss of voltage) the pump
stops, the magnetic valve opens permitting the decompression of
the piston's upper chamber. The plate is closed by the force of the
return spring and the gas pressure. The valves are completely closed
within 0.6 seconds.
This type of valve does not have gas output regulation (closed/
open version).
1 Piston
2 Oscillating pump
3 Oil tank
4 Pressure chamber
5 Shaft
6 Closing spring
7 Operating valve
8 Limit switch (optional)
REGULATION INSTRUCTIONS FOR DUNGS GAS VALVES mod. MVD ...
The gas valve mod. MVD features a quick opening and closure.
To adjust the gas flow rate, unscrew and remove cap "A" and loosen
nut "B".
Use a screwdriver to turn screw "C".
L o o s e n t o i n c r e a s e a n d s c r e w t o d e c r e a s e .
When the regulation is complete, lock nut "B" and screw cap "A".
S K P 1 5 . 0 0 0 E 2
complete with valve
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