Samson 3595, Монтаж и эксплуатация

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15-2 EB 8079 EN
Annex
Lubricants
Table 15-3: Lubricant and lapping compound
Lubricant
Parts/
pairs of parts Reason Application
Clean -
ing 1)
Oil
Inside and
outside of the
valve
Before long periods of
storage to protect the valve
against corrosion
Apply a thin film Yes
Machine oil Plug stem
To make the plug move
easier during lapping of
the seat and plug.
Apply a thin film Yes
Silicone-based lubricant Packing rings
To slide the packing rings
on the plug stem
Apply a thin film No
Grease (compatible with
the process medium)
Spring pin in
the plug/plug
stem
To insert the pin through
the hole
Grease the en-
tire pin
No
Crane anti-seize mount-
ing paste
Plug/
plug stem
To screw the plug stem into
the plug or screwing the
plug onto the plug stem
Apply to the
threads of the
plug and plug
stem
No
Stud bolts/
nuts
To mount the valve body
onto the valve body
Apply to the
thread of the
nuts and stud
bolts
No
1)
All the lubricant must be wiped off before start-up or putting back the valve into service
Lapping compound
Parts/
pairs of parts Reason Application
Clean -
ing 1)
Grinding compound, grit size A or
smaller, mixed with a small amount
of lubricant (e.g. graphite)
Seat ring
For lapping the
seat and plug
Apply only to
the facing of the
seat ring
Yes
Silicon carbide paste, medium grit
size (CM)
1)
All the grinding compound must be wiped off before start-up or putting back the valve into service