39
VERSION 06/2018
ORDER NUMBER DOC 2343275
10.1 DOSING VALVES: CHANGING BETWEEN PTFE/FFKM
In the case of repeated valve rod leaks, a switch from PTFE to FFKM seals (or the other way around) can be
tried out.
PTFE to FFKM: with dosing valve conversion set PTFE to FFKM (see Chapter
).
FFKM to PTFE: with corresponding PTFE service set (see Chapter
).