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DIAGRAM FOR MODULATING OR TWO-STAGE PROGRESSIVE GAS
AND DUAL FUEL BURNERS AT NOMINAL THERMAL POWER > 2000
Modulating servomotor
2 Deflector with air and gas supply rate adjuster
screws
3 Gas supply modulating throttle valve
4 Safety gas valve
5 Pilot gas valve
6 Air pressure switch
7 Seal control device (LDU) and pressure switch
N° BT 8815
DETAILS ON THE BUTTERFLY VALVE FOR THE REGULATION OF
THE GAS DELIVERY
The notch shown on the end of the shaft indicates
the position of the butterfly valve (shutter)
N° 0002910611
REV.:05/11/2002
8 Connection between main valves for
the valve seal control device
9 Minimum and maximum gas pressure
switches with pressure take-offs
0 Gas pressure regulator
Filter
2 Anti-vibration coupling
3 Ball valve
14 Main flame gas valve
Summary of Contents for GI 350 DSPGN
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