Table of Contents
Advertisement
12.1
Replacing the membrane
WARNING!
Observe the safety instructions at the beginning of the
chapter.
1.
Flush the suction line, discharge lines and liquid end (activate
flushing equipment or immerse suction lance in a suitable medium
and pump for a while (consider the effect of the medium on your
system first!)) or proceed, as described below.
2.
Set the stroke length to 0 % stroke with the pump running.
3.
Switch off the pump.
4.
Secure the pump to prevent it being switched back on.
5.
If the liquid end has not been flushed according to the above pro‐
cesses, then protect yourself against the feed chemical - protective
clothing, safety glasses, ... .
After dismantling immediately place parts that have been wetting
with the medium in a trough with a suitable medium for flushing, in
dangerous media were used flush and rinse thoroughly.
6.
Unscrew the hydraulic connectors on the discharge and suction
side.
1
2
3
4
P_MA_0038_SW
Fig. 18: Cross-section through the liquid end
1
Dosing head
2
Diaphragm
3
Reinforce plate
4
Screw
5
Leakage hole
6
Slide rod
7
Threaded connection
8
Turret
9
Backplate
Repairs
9
8
7
6
5
37
Advertisement
Table of Contents
