Flow Adjustment 2-Stage Design; Adjustment Of Of Main Valve Damper - Bentone BG550 Series Installation And Maintenance Instruction

General
8.3

Flow adjustment 2-stage design

For pilot flame Disconnect contact X50, Dismount cap X adjust pilot valve
V3 for desired start values turn adjustment screw Z:
to the right = the gas low is reduced
to the left = the gas low is increased
Connect contact X50
For stage 1, loosen the lock screw a. Turn adjustment ring e:
to the right = the gas low is reduced
to the left = the gas low is increased
For stage 2, turn the hydraulic device b:
to the right = the gas low is reduced
to the left = the gas low is increased
Do not forget to tighten the lock screw again
Adjustment of pressure governor
Adjust outlet pressure from governor by means of a screw driver. Min. and
max. outlet pressures correspond to appr. 60 turns of the spring. It is not
possible to change pressure springs in order to change the outlet pressure.
Turn to the right = the outlet pressure is increased
Turn to the left = the outlet pressure is reduced
8.4 Adjustment of of main valve
damper
Remove the protective cover c.
Turn the adjustment knob d (use the protective cover as a tool) to the desired
opening speed.
Turn to the right = opening speed is reduced
Turn to the left = opening speed is increased
Bentone BG550/650
32
X
z: under cap
b
a
e
Flow adjustment
Adjustment of governor
d
Adjustment of main valve damper