
40 … 72
MC • Edition 05.20 • Nº 279 663
Pos. Designation
1
Shut-off valve, inlet side
2
Filter
3
Pressure gauge with pushbutton cock
4
Venting ball valve
5
Regulator with SAV integrated
6
SBV with shut-off valve
Pos. Designation
7
Pressure gauge with pushbutton cock
8
Venting ball valve
9
Test burner
10
Shut-off valve, outlet side
11
Hose
12.4 Recommissioning
12.5 Decommissioning
1. Close the shut-off valve before bypassing.
2. Remove the hose.
3. Open the ball valve upstream of the SBV.
1. Slowly close the shut-off valve on the outlet side.
2. Slowly close the shut-off valve on the inlet side.
3. Release gas in the test section in a controlled and safe
manner into the atmosphere.
13. Faults and their causes
Fault in the SAV
Possible causes
Troubleshooting
The SAV cannot be
opened/unlocked
The pulse line is not connected.*
Install the pulse line.
The pulse line is clogged.*
Clean the pulse line.
The pulse line has leaks.*
Seal the pulse line.
The pulse line is damaged.*
Replace the pulse line.
The pulse pressure is outside the adjustment range.
Adjust the locking pressure of the SAV or the
outlet pressure.
The adjusting springs are not suitable for the application.
Replace the adjusting spring.
The adjustment range of the SAV is outside the outlet pressure.
Replace the SAV or the ASE.
The SAV does not switch
or does not respond.
The pulse line is not connected.*
Connect/install the pulse line.
The pulse line is clogged.*
Clean the pulse line.
The pulse line has leaks.*
Seal the pulse line-
The pulse line is damaged.*
Replace the pulse line.
The pulse pressure is outside the adjustment range.
Adjust the locking pressure of the SAV.
The adjustment springs are not suitable for the application.
Replace the adjusting spring.
The SAV switches, but
does not seal.
The valve head is damaged or worn.
Replace the ASE or have it repaired by DUNGS.
The seat of the valve is damaged.
Replace the valve seat.
The movable parts are contaminated with foreign particles.
Clean the movable parts or replace the ASE.
The drive is damaged.
Replace the ASE.
The O-ring is damaged.
Replace the O-ring or the ASE.
The SAV is leaking towards
the atmosphere.
The working diaphragm is damaged.
Change the working diaphragm or replace
the ASE.
The sealing ring between ASE and housing of the SAV is damaged.
Replace the ring or the ASE.
The O-ring junta on the ASE is damaged.
Replace the O-ring or the ASE.
• Repair work on the device must only be performed by authorised and skilled personnel.
• Use only original spare parts.
4. Reset slowly the SAV, see point 11.3.
5. Once SAV has been opened completely, open the
shut-off valve on the outlet side.
Содержание 279042
Страница 14: ...14 72 MC Edition 05 20 Nº 279 663 A B C D E A B C D E F Type UHD F Type HD ...
Страница 15: ...MC Edition 05 20 Nº 279 663 15 72 A B C D F E A B C D E F ND MD for G2 DN40 DN50 ND for G1 G1 5 y DN25 ...
Страница 43: ...MC Edition 05 20 Nº 279 663 43 72 Type UHD X Y Q S W V M C A B D E G F J K L N P H O R U I ...
Страница 45: ...MC Edition 05 20 Nº 279 663 45 72 Type ND MD for 2 DN40 DN50 M B D E G F J K L N H X Y Q S W V O I T ...
Страница 64: ...64 72 MC Edition 05 20 Nº 279 663 14 4 Tools required A B C2 D C1 ...