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MAINTENANCE
For troubleshooting, testing methods, frequency of maintenance and detailed spare parts list, see Armstrong
literature or consult your local Representative.
EQUIPMENT UNDER PRESSURE
OPERATING TEMPERATURE MIGHT BE >90°C
MAKE SURE VENT IS COLD BEFORE HANDLING
Model shown on the drawing: 2-AV
I. Internals Maintenance:
-
Remove the complete vent from the line;
-
Unscrew bolts (9) and nuts (8) and disassemble the cap (1) and the body (2);
-
Remove and replace the float (7) and the mechanism (valve and seat) (3, 4 & 5);
-
Mechanism should be adjusted as shown above.
aligned, lever (B) can be moved sideways the same distance to the right
as to the left. If guide pin (A) is not in the middle of the orifices, adjust
by slightly hitting with a hammer;
-
1-AV: Make sure the lever stop (11) is correctly assembled. In that
case the clearance of 0,8 mm between the valve seat (3) and the
fulcrums of the lever (5) is automatically set up;
-
2-AV, 3-AV: Unscrew the stop lock nut in order to leave 0,4 mm
clearance between the nut (12) and the extension of the valve lever
under it (13);
-
6-AV: Unscrew the stop lock nut in order to leave 0,8 mm clearance
between the nut (12) and the extension of the valve lever under it (13);
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Replace gasket (6);
-
Put the cap (1) back on the body (2) and screw bolts (9) and nuts (8).
MODELS WITH CE MARKING
Vent Model
6-AV
Armstrong International, S.A., Parc Industriel des Hauts-Sarts, 4040 Herstal – Belgium Ph: +32.4.240.90.90 Fax: +32.4.248.13.61
IOM-1070-A
05/02
PMA
TMA
17 bar
232°C
www.armstrong.be
MECHANISM ADJUSTMENT
When correctly
Volume
Orifice
Check on the
4,76 Liters
order
OK
WRONG
PMO
Depends on
orifice
Printed in Belgium
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