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Maintenance and care
BlueShadow Pump 80P Instructions V7685
8.6 Check valves
Clogged check valves do not open and close properly. They cause
pressure fluctuations and irregular flow. If it is impossible to clean the
check valves, replace the whole unit. Pay attention to the torques while
tightening.
Pump head, stainless steel
Torques for Inlet and
Outlet Fittings
100 ml
15 Nm
250 ml
15 Nm
500 ml
12 Nm
1000 ml
12 Nm
8.6.1 Removing the check valves
The pump head has been flushed.
The capillaries have been removed.
The pump head has been dismounted.
Open-end wrench (torque), sizes 10 & 17
Procedure
Process
Figure
1.
Unscrew the outlet fittings
1
.
2.
Remove the check valve
2
.
3.
Unscrew the inlet fittings
3
.
4.
Remove the check valve.
Fig. 23:
Removing
2
1
3
the check valve
You can either replace or clean the check valves.
Prerequisites
Tools
Next Steps
