SIMDOS diaphragm metering pump
Maintenance
KNF Flodos BA_SIMDOS_EN_02_160044.docx
Translation of original operating manual
39
1
Head bolt
2
Cover plate
3
Connecting plate
4
Sealing washer
5
Valve seat
6
O ring
7
Valve disk
8
Spacer plate
Fig. 57: Head, KT, TT
Head, FT
1. Loosen four head bolts (
1
) and remove pump head as a
complete unit.
The pump diaphragm (12, Fig. 59) is now visible.
2. Pull apart the cover plate (
2
), connecting plate (
3
) and spacer
plate (
8
).
3. Carefully remove the valve seats (
5
), remove sealing washers
(
4
) (not present in FT head, see Fig. 57 at right), O rings (
6
)
and valve disk (
7
).
Cleaning the pump head
1. Rinse connecting plate (
3
) and spacer plate (
8
) and wipe with
a soft cloth. Blow dry.
Take care not to damage the sealing grooves on the spacer
plate (
8
) at the side of the diaphragm chamber. Do not use any
abrasive agents.
In PTFE pumps (FEM 1.10 FT, UFEM 1.10 FT), the valve seat
is combined with the connecting plate and spacer plate.
Do not use any hard materials for cleaning, rubbing or brushing
the area of the valve seat. This may make the valve seat
unusable.
2. Rinse the valve seats (
5
), blow dry and inspect for any signs of
damage.
Replace any damaged valve seats. The valve seats must be in
good condition for the pump to operate reliably.
3. Wash the sealing washer (
4
), O rings (
6
) and valve disk (
7
)
with flushing agent and blow dry.
4. Wipe the pump diaphragm with a soft damp cloth.
