ARI Armaturen CONA TD PN63 EN - Manual (Page 9)

Rev. 0040806000 2404 Page 9
Operating and installation instructions
CONA
®
TD - Thermodynamic steam traps
7.0 Care and maintenance
Maintanance and maintenance-intervals have to be defined by the operator according to
the requirements.
7.1 Cleaning / replacing controller assembly
7.1.1 Series 640/641
(see Fig. 1-Fig. 2 page 5, Fig. 7-Fig. 8 page 6 )
- Release sealing cap (Pos. 6) and unscrew.
- Unscrew controller (Pos. 24) and remove strainer (Pos. 2).
- Clean body (Pos. 1), sealing cap (Pos. 6) and strainer (Pos. 2) plus all seal faces.
- Clean controller (Pos. 24). ). If the operator thinks there is unwarranted leakage of steam
at the steam trap, we recommend replacing the complete controller (Pos. 24).
- Insert strainer (Pos. 2), making sure controller/body seal faces are clean.
- Screw in and tighten controller (Pos. 24).
- Put on and tighten sealing cap (Pos. 6).
Series 641:
- Unscrew strainer plug (Pos. 8), remove strainer sleeve (Pos. 7) and clean components/
seal faces.
- Fit strainer sleeve (Pos. 7), making sure seal faces are clean.
- Tighten strainer plug (Pos. 8) (see 7.3).
7.1.2 Series 642/643 with loose flange or system connector
(see Fig. 3-Fig. 4 page 5, Fig. 5-Fig. 6 page 6 )
- Slacken hexagon nuts (Pos. 27) to disassemble steam trap.
- Remove steam trap (Pos. 1 with 58) from system connection (Pos. 59).
- Remove seal inside (Pos.11) and out (Pos. 17).
- Remove dirt from body (Pos. 1), e.g. by flushing ducts
- If an unwarranted amount of steam is leaking, the cause may also be excessive wearing
of the valve plate (Pos. 25) or valve seat (incorporated in Pos. 1).
In this case we recommend replacing the complete steam trap.
- Assemble in reverse order (see 7.3).
- Replace sealing rings (Pos. 11 and 17).
Series 643:
- Unscrew strainer plug (Pos. 8), remove strainer sleeve (Pos. 7) and clean components/
seal faces.
- Fit strainer sleeve (Pos. 7), making sure seal faces are clean.
- Tighten strainer plug (Pos. 8) (see 7.3).
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).