GE AKTApure - Page 110

Sample pump piston rinsing system
A seal prevents leakage between the pump chamber and the drive mechanism. The seal is continuously
lubricated by the presence of solvent. The pump piston rinsing system continuously flushes the low
pressure chamber behind the piston with a low flow of 20% ethanol. This prevents any deposition of
salts from aqueous buffers on the pistons and prolongs the working life of the seals.
For instructions on how to fill the rinsing system, see Section 7.3.1 Change pump rinsing solution, on
page 262
Illustrations of the sample pump piston rinsing
system
The illustrations below show the parts, tubing and flow path of the sample pump piston rinsing system.
1
2
3
4 5
Rinsing system flow pathParts and tubing
FunctionPart
Pump rinsing liquid tube1
Pump rinsing liquid tube holder2
Inlet tubing, from the rinsing liquid tube to the left pump head (lower rinsing system
connection) .
3
Tubing between the left pump head (upper rinsing system connection) and the right
pump head (lower rinsing system connection).
4
Outlet tubing, from the right pump head (upper rinsing system connection) to the rinsing
liquid tube.
5
110 ÄKTA pure User Manual 29119969 AB
3 ÄKTA pure external modules
3.4 Sample pump S9 and S9H