Inhaltsverzeichnis
Werbung
Maintenance
SNV 8
Backseating
Supplied after August
1995
Fig. 4a
No Backseating
Supplied until August
1995
Fig. 4b
Fig. 7
ENGLISH
PACKING GLAND
NB: The spindle cannot be
changed.
As a rule do not dismount packing
glands with internal pressure in
the valve. If the SNV valve, howe-
ver, is delivered after August 1995
it is possible to remove the
packing gland with the valve still
under pressure if the following
precautionary measures are taken:
NB: Only SNV valves supplied
after August 1995 can be back-
seated! Fig. 4a-4b illustrates how,
you tell the difference between
SNV valves with and without back-
No 2516+287 Sheet: 2/2 Rev. 1
Fig. 5
Fig. 8
seating facility.
1. Backseating (fig. 5): To backseat
the valve, turn the spindle anti-
clockwise until a light touch
against the stop is felt.
2. Pressure equalizing (fig. 6): It
may be that pressure builds up
behind the packing gland.
3. Now it is possible to dismount
the packing gland (fig. 7).
REPLACEMENT
OF
(FIG. 8)
Replace the O-rings of the packing
gland with original Danvalve O-
rings.
505
Fig. 6
Fig. 9
LUBRICATION (FIG. 9)
For optimum tightness, fill the rail
in the middle of the packing gland
with original Danvalve grease (part
No. 2452+143).
In case of doubt, please contact
dealer or factory.
PAKFORSKRUNING
OBS: Spindlen kan ikke skiftes.
Ved afmontering af pakforskrunin-
O-RINGS
gen bør ventilen normalt være fri
for indre tryk. På SNV ventiler leve-
ret efter aug. 1995 kan pakfor-
skruningen dog afmonteres, når
der er tryk i ventilen, hvis følgende
DANSK
Werbung
Inhaltsverzeichnis
