ARI Armaturen CODI B PN63 EN - Manual (Page 8)

Page 8 Rev. 0040807006 1404
Operating and installation instructions
CODI
®
S/B - Condensate collection / steam distribution
7.0 Care and maintenance
Maintanance and maintenance-intervals have to be defined by the operator according to
the requirements.
7.1 Disassembling/assembling complete shut-off valve assembly
(see Fig. 2 page 5 - Fig. 3 page 5)
- Open spindle (Pos. 11) fully as far as the stop.
- Unscrew shut-off valve assembly (Pos. 8) from body (Pos. 1) by rotating to the left.
- Remove graphite insert (Pos. 7).
- Unscrew hollow-core screw (Pos. 14) using AWH assembly spanner.
- Remove seat (Pos. 3).
- Assemble in reverse order (see 7.5).
7.2 Replacing the packing rings (CODI
®
S)
- Dismantle shut-off valve assembly (Pos. 8) as described in 7.1.
- Rotate spindle (Pos. 11) in closing direction.
- Slacken cheese-head screw (Pos. 18).
- Pull handle (Pos. 19) away from spindle (Pos. 11).
- Release lock nut (Pos. 13).
- Unscrew threaded bush (Pos. 12).
- Withdraw spindle (Pos. 11) downwards from threaded bush (Pos. 12).
- Dismantle cover ring (Pos. 20) and packing rings (Pos. 5).
- Clean packing chamber and spindle surface.
- Push spindle (Pos. 11) into screw fitting (Pos. 15) and fit new packing
rings (Pos. 5).
- Assemble in reverse order (see 7.5).
ATTENTION !
- refer to item 10.0 and 11.0 prior to dismantling and repair work!
- refer to item 6.0 before restarting the plant !
Prior to installation, threads and seal faces should be coated with temperature-
stable lubricant (e.g. “OKS Anti-Seize Paste” white/metal-free for PN 16-40 or
“Rivolta” lubricant and parting agent silver for PN 63 onwards).
ATTENTION !
It is vital to avoid damage to spindle surface and
packing chamber surface.
Fig. 4