ARI Armaturen CONA Universal ANSI 300 EN - Manual (Page 12)

Page 12 Rev. 0040808001 0611
Operating and installation instructions
CONA
®
Universal / CONA
®
Connector
7.3 Replacing packing rings of the secondary sealing gland packing
- Dismantle shut-off valve assembly (pos. 8) as described in item 7.1.
- Rotate stem (pos. 11) in closing direction.
- Slacken cheese-head screw (pos. 18).
- Pull handle (pos. 19) away from stem (pos. 11).
- Unscrew sleeve nut (pos. 6).
- Remove pressure plate (pos. 21).
- Unscrew stem guide (pos. 16) from screw fitting (pos. 15) and
withdraw from stem (pos. 11).
- Dismantle packing rings (pos. 10).
- Clean packing chamber and stem surface.
- Push stem (pos. 11) into stem guide (pos. 16) and fit new packing
rings (pos. 10).
- Assemble in reverse order (see 7.6).
7.4 Cleaning / replacing
a) Bimetallic steam trap BR604
(refer to Fig. 1 page 6)
The bimetallic steam trap is based on a compact welded structure.
Disassembly is not possible therefore.
If the operator thinks there is unwarranted leakage of steam at the steam trap, we
recommend replacing the complete bimetallic steam trap.
That means:
- Release pressure from the steam trap (shut-off inlet; with back pressure also shut-off
behind the steam trap)
- Loosen the two hexagon screws (pos. 27)
- Remofe steam trap and gaskets (pos. 11, 17)
- Clean the sealing surface of the CONA
®
-Connector
- install new trap with new gaskets
ATTENTION !
It is vital to avoid damage to stem surface and
packing chamber surface.
Fig. 11