0 troubleshooting, 0 troubleshooting table, 3 tightening torques – ARI Armaturen Vacuum breaker PN40 EN User Manual
Page 7

Rev. 0040807005 2404
Page 7
Operating and installation instructions
Vacuum breaker
7.2 Option drip pipe with union joint
7.3 Tightening torques
(refer to Fig. 1 page 4 - Fig. 2 page 7)
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If malfunctions cannot be eliminate with the help of the following table
“9.0 troubleshooting table”, the supplier or manufacturer should be consulted.
9.0 Troubleshooting table
It is possible to install a drip pipe (Pos. 53/
54) on the air inlet side to collect and safely
discharge any escaping liquid leakage.
Note section 7.3 when installing the option.
Fig. 2
Pos.
Vacuum breaker PN40
Torque (Nm)
Rp 1/2
6
Screw cap
90
53
Union joint for drip pipe
30
-
ATTENTION !
It is essential that the safety regulations are observed when identifying faults.
ATTENTION !
- refer to item 10.0 and 11.0 prior to dismantling and repair work!
- refer to item 6.0 before restarting the plant !
Fault
Possible cause
Corrective measures
External leakage
Screw cap (Pos. 6) not properly
tightened
Tighten; refer to item 7.3
Ball/seat chamfer worn
Replace venting valve
Incorrect installation position
Note installation position; refer to
item 5.3. Correct installation position