ARI Armaturen FABA-LA EN - Manual (Page 11)

Rev. 0040103002 0410 Page 11
Operating and installation instructions
FABA
®
-Plus / FABA
®
-Supra / FABA
®
-LA
- Replace stuffing box packings only after the system has cooled down and the pressure in
the plant has been relieved.
In the case of corrosive or aggressive mediums, drain and ventilate the valve before
replacing the packing.
Mounting of the bonnet:
- Before reassembling the unit, remember that the bearing surface must be cleaned and 2
new gaskets (pos. 9) must be inserted.
- Set the cover in place.
- Tighten the hexagon nuts (hexagon screws for valves of cast iron) evenly crosswise.
- Tightening torque‘s for hexagon nuts / screws:
ATTENTION !
- Retighten the stuffing box packing if required and re-pack it in good time.
- For safety reasons we recommend that valves only be repacked when
depressurised.
- Refer to point 10.0 and 11.0 before dismantling the valve.
fig. 12: Split packing ring
- When cutting the new packing from the roll,
make sure that the ends are cut with a slant
DN hexagon nuts /
hexagon screws
Torque
(Nm)
15-32 M 10 15-30
40-65 M 12 35-50
80-100 M 16 75-100
125-150 M 16 80-120
200 M 20 150-200
250-400 M 24 340-410
500 M 27 340-410