Bentone STG 146, Installation And Maintenance Instructions Manual

ADJUSTMENT OF MULTI-BLOC, MB-DLE 405-407

Flow adjustment

Loosen the fixing screw a. Turn the 
hydraulic device b: 
to the right = the gas flow is reduced 
to the left = the gas flow is increased

Do not forget to tighten the fixing screw 
again.

The flow adjustment can also be made 
by means of the governor. Adjust the 
outlet pressure to a value giving the 
desired gas flow on the fully open valve. 
At small capacities (gas flows) it is also 
necessary to adjust as above.

Adjustment of governor

Adjust outlet pressure from governor by 
means of a screw . Min. and max. outlet 
pressures corresponds 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

Adjustment of start gas flow

Remove the protective cover c. 
Turn the adjustment knob d (use the 
protective cover as a tool) to the desired 
start gas flow. 
Turn to the right = the start gas flow is 
reduced 
Turn to the left = the start gas flow is 
increased

Max. inlet pressure: 360 mbar. Adjustable 
governor pressure:   
405 - 412 S50 =  4 - 50 mbar 
415 - 420 S20 =  4 - 20 mbar 
415 - 420 S50 =  20 - 50 mbar

Solenoid valve: Slow opening valves with 
adjustable start load and max. flow.

172 505 38  16-02

16

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1

1. 

Electrical connection for valves (DIN 
EN 175 301-803 connector)

2. 

Operation display V1, V2 (optional)

3. 

Lead seal eye, Gouvernor 
adjustment

4. 

Setting cap

5. 

Hydraulic brake / setting plate

6. 

Solenoid

7. 

Test point connection G 1/8 
possible

8. 

Test point connection G 1/8 
downstream of valve 1, possible on 
both sides

9. 

Output flange

10.  Gas flow direction
11.  Test point connection G 1/8 

upstream of V1, possible on both 
sides

12.  Vent nozzle, regulator
13.  Filter (below flange)
14.  Input flange
15.  Pressure switch
16.  Electrical connection for pressure 

switch (DIN EN 175 301-803 
connector

Adjustment of start gas flow

d

c

a

b

Adjustment of governor